We report the first direct observation of muon antineutrinos in the MINOS Far Detector in the current muon-neutrino dominated beam. The magnetic field of the detector is utilized to separate muon neutrinos and antineutrinos event-by-event by identifying the charge sign of the ...

FNAL E-954 (SciBooNE) Version 0.9 An experiment to measure muon-neutrino and muon-antineutrino cross F. Dongshin University 7 G. Fermi National Accelerator Laboratory 7 H. High Energy Accelerator (CD) Liaison: Ray Stefanski Particle Physics Division (PPD) Liaison: Steve Brice Experimenters

This Letter reports the first direct observation of muon antineutrino disappearance. The MINOS experiment has taken data with an accelerator beam optimized for ?[over �]_{?} production, accumulating an exposure of 1.71�10^{20} protons on target. In the Far Detector, 97 charged current ?[over �]_{?} events are observed. The ...

This Letter reports the first direct observation of muon antineutrino disappearance. The MINOS experiment has taken data with an accelerator beam optimized for ?�? production, accumulating an exposure of 1.71�1020 protons on target. In the Far Detector, 97 charged current ?�? events are observed. The no-oscillation hypothesis ...

A neutral channel at a 20-TeV fixed-target proton accelerator could be used to provide a tagged neutrino beam using K/sub OL/ decays. Muon and electron neutrinos and antineutrinos are identified and energy tagged up to above 2 TeV, allowing excellent syst...

Conceptual design studies are underway for both muon colliders and high-current non-colliding muon storage rings that have the potential to become the first true neutrino factories. Muon decays in long straight sections of the storage rings would produce uniquely intense and precisely characterized two-component neutrino ...

A review is given of inclusive muon neutrino and antineutrino interactions with nucleons. Included are cross sections, the y distribution, multiple muon production, and anti- and strange-quark phenomena. (JFP)

The radiative decay of the muon, positive-muon to position + neutrino + e-neutrino + mu'-antineutrino was measured using muons from the Columbia University Nevis Synchrocyclotron. The positron and gamma-ray decay products were observed at relative angles ...

FINAL TECHNICAL REPORT FOR DOE AWARD DE-FG02-03ER41267 NEUTRINO FACTORY AND MUON COLLIDER FELLOW 1. Introduction By providing an intense, well controlled, well characterized, narrow beam of muon neutrinos (���s) and electron antineutrinos ( �s) from the decay of muons (���s) in a storage ring, ...

FINAL TECHNICAL REPORT FOR DOE AWARD DE-FG02-03ER41267 NEUTRINO FACTORY AND MUON COLLIDER FELLOW 1. Introduction By providing an intense, well controlled, well characterized, narrow beam of muon neutrinos (??�s) and electron antineutrinos ( �s) from the decay of muons (??�s) in a storage ring, a ...

Neutrino oscillations have been observed and confirmed at {Delta}m{sup 2} {approx} 10{sup -3} and 10{sup -5} eV{sup 2} with various experiments. While oscillations at other mass splittings are prohibited by the current standard model, the LSND experiment observed an excess of electron antineutrinos in a muon antineutrino beam, ...

Historically, progress in particle physics has largely beendetermined by development of more capable particle accelerators. Thistrend continues today with the recent advent of high-luminosityelectron-positron colliders at KEK and SLAC operating as "B factories,"the imminent commissioning of the Large Hadron Collider at CERN, and theworldwide development effort toward the ...

Over the last decade there has been significant progress in developing the concepts and technologies needed to produce, capture and accelerate O(10{sup 21}) muons/year. This prepares the way for a Neutrino Factory (NF) in which high energy muons decay within the straight sections of a storage ring to produce a beam of neutrinos and ...

This letter reports the first direct observation of muon antineutrino disappearance. The MINOS experiment has taken data with an accelerator beam optimized for {bar {nu}}{sub {mu}} production, accumulating an exposure of 1.71 x 10{sup 20} protons on target. In the Far Detector, 97 charged current {bar {nu}}{sub {mu}} events are ...

Radioactive isotopes produced through cosmic muon spallation are a background for rare event detection in {nu} detectors, double-beta-decay experiments, and dark-matter searches. Understanding the nature of cosmogenic backgrounds is particularly important for future experiments aiming to determine the pep and CNO solar neutrino fluxes, for which the background is dominated by ...

Radioactive isotopes produced through cosmic muon spallation are a background for rare-event detection in nu detectors, double-beta-decay experiments, and dark-matter searches. Understanding the nature of cosmogenic backgrounds is particularly important for future experiments aiming to determine the pep and CNO solar neutrino fluxes, for which the background is dominated by ...

Radioactive isotopes produced through cosmic muon spallation are a background for rare-event detection in ? detectors, double-?-decay experiments, and dark-matter searches. Understanding the nature of cosmogenic backgrounds is particularly important for future experiments aiming to determine the pep and CNO solar neutrino fluxes, for which the background is dominated by the ...

This talk is intended as a brief report on studies of the elastic scattering of neutrinos by protons and electrons. Measurements of the ratios of muon antineutrino and muon neutrino elastic scattering on protons, and the corresponding ratio for elastic sc...

We discuss neutrino fluxes and energy dependent flavor ratios of cosmic accelerators as a function of the size of the acceleration region and the magnetic field, which are the parameters of the Hillas plot. We assume that photohadronic interactions between Fermi accelerated protons and synchrotron photons from ...

for a muon beamline. The facility allows scientists to test the equipment with a proton beam. Read more The Muon Accelerator Program (MAP) was created in 2010 to unify the...

We discuss precision measurements of the leading atmospheric parameters at a standard neutrino factory. The oscillation of the muon and electron neutrinos (anti-neutrinos) to tau neutrinos (anti-neutrinos) adds to the muon events sample (both right sign and wrong sign) via leptonic decays of the taus produced ...

A method to calibrate the solid state detectors used to monitor the muon flux in an (anti)neutrino beam line is described. The calibration offers the possibility to measure the (anti)neutrino flux needed for the determination of the absolute total cross sections of (anti)neutrino nucleon interactions. Tracks of ...

The need for a muon number conservation law separate from lepton number conservation is mandated by the absence of neutrinoless muon-electron transitions. The form of the muon number conservation law, however, is not determined by these considerations. A search was made for electron antineutrinos coming from ...

Some processes due to free neutrinos which heretofore had not been considered are discussed. Especial attention is given to those processes which in principle may help to solve the problem concerning the existence of two neutral lepton pairs (electron pair ( nu /sub e/ and nu -bar/sub e/) and muon pair ( nu /s ub mu / and nu /sup -//sub mu /)). To solve the ...

We present a detailed analysis on nonstandard neutrino interactions with electrons including muon and electron (anti)-neutrino data from existing accelerators and reactors in conjunction with data from the four LEP collaborations. First we perform a one-parameter-at-a-time analysis, showing how most constraints improve with respect to ...

A neutral channel at a 20-TeV fixed-target proton accelerator could be used to provide a tagged neutrino beam using K/sub OL/ decays. Muon and electron neutrinos and antineutrinos are identified and energy tagged up to above 2 TeV, allowing excellent systematics and good statistics in studying their interactions. The precise ...

A review of muon colliders is presented. Basic features of the accelerator and detector are outlined, and the very exciting physics prospects are reviewed.

A review of muon colliders is presented. Basic features of the accelerator and detector are outlined, and the very exciting physics prospects are reviewed.

Rare muon decay experiments to search for charged lepton flavor violation are described. Future prospects of rare muon decay experiments with highly intense proton accelerators are discussed.

We present two new measurements of antineutrino properties based on a data sample corresponding to 3.2�1020 protons-on-target, exploiting MINOS' unique ability to distinguish positive and negative muons and thus separate charged current neutrino and antineutrino interactions event-by-event. The first measurement takes advantage of ...

Contents: The Muon: A case of the Cavemans Fire; First steps in Muon Scinece: The Discovery of the Pion and Muon; Pion Production; Accelerators for Pion and Muon Facilities; Properties of the Pion and Pion Decay; Properties of the Muon and Muon Decay; ...

We consider searching for light sterile fermions and new forces by using long baseline oscillations of neutrinos and antineutrinos. A new light sterile state and/or a new force can lead to apparent CPT violation in muon neutrino and antineutrino oscillations. As an example, we present an economical model of neutrino masses containing a ...

We study the possibility to replace the anti-neutrino run of a long baseline neutrino oscillation experiment, with anti-neutrinos from muon decay at rest. The low energy of these neutrinos allows the use of inverse beta decay for detection in a Gadolinium-doped water Cerenkov detector. We show that this approach yields a factor of five ...

High-intensity neutrino beams could be produced using a very intense muon source, and allowing the muons to decay in a storage ring containing a long straight section. Taking the parameters of muon source designs that are currently under study for future high luminosity muon colliders, the characteristics of the ...

... warfare, joint planning, national and international ... ACCELERATORS, LINEAR ACCELERATORS, PARTICLE ACCELERATOR TARGETS ...

The DAEDALUS experiment offers a novel approach to measuring CP violation in the neutrino sector. The design uses a Multi Megawatt Cyclotron (MMC) complex to produce intense beams of neutrinos from the decay-at-rest of pions and muons. Short-baseline muon- to electron-antineutrino oscillations is observed via inverse beta decay in an ...

The MINOS experiment utilizes the NuMI beam of muon neutrinos to study the phenomenon of neutrino oscillations. Neutrinos are sent over a baseline of 735 km, with a detector near the production point at Fermilab and one at the Soudan underground laboratory in northern Minnesota. By measuring the disappearance characteristic of oscillations, MINOS has made the best measurement ...

We discuss energy-dependent flavor and neutrino-antineutrino ratios of neutrinos produced in cosmic accelerators as a function of energy over 20�24 orders of magnitude in R and B, which are the parameters of the Hillas plot. We use a self-consistent model for sources optically thin to neutrons, in which the neutrinos come from charged pions produced in ...

Super-Kamiokande is a large water Cherenkov neutrino detector in Japan. Without a magnetic field, the difference between neutrinos and antineutrinos is not apparent. The difference can be observed, however, through the decay of nitrogen-16. Negative muons capture on oxygen nuclei, and oxygen-16 becomes nitrogen-16, which beta decays. Looking for the decay ...

We have analyzed data taken in the CERN narrow-band neutrino and antineutrino beams with regard to the ''high-y anomaly'' observed by previous experiments at Fermilab. At neutrino energies between 30 and 200 GeV, the anti ..nu.. and ..nu.. charged-current cross-section ratios and muon-inelasticity distributions disagree ...

Neutrino and antineutrino interactions with two muons in the final state have been studied by the CCFR collaboration in the Fermilab Tevatron neutrino beam. The rate of neutrino- and antineutrino-induced prompt same-sign dimuon production in steel was measured using a sample of 220 [mu][sup [minus

Super-Kamiokande is a large water Cherenkov neutrino detector in Japan. Without a magnetic field, the difference between neutrinos and antineutrinos is not apparent. But when negative muons capture on oxygen nuclei, oxygen-16 becomes nitrogen-16, which beta decays. Looking for this beta decay after low energy events within detector samples can signify ...

The hypothesis of Fischbach and Jenkins that neutrinos emitted from the sun accelerate radioactive decay is noted. It is thought that neutrinos accelerate beta decay by reacting with neutron-rich nuclides to form a beta particle and a daughter product, with no antineutrino emitted. Conversely, it is proposed that ...

The range of oscillation analyses being pursued by the MiniBooNE collaboration is described. Focus is given to the various searches for electron neutrino appearance, but the disappearance of muon neutrinos and the appearance search for electron anti-neutrinos are covered as well.

If a Z' gauge boson of a gauged L?�L? symmetry is very light, it is associated with a long-range leptonic force. In this case, the particles in the Sun create via mixing of Z' with the standard model Z a flavor-dependent potential for muon neutrinos in terrestrial long-baseline experiments. The potential changes sign for anti-neutrinos and hence can lead ...

Data on the mu neutrino-proton and mu anti-neutrino proton giving respectively muon(-)-proton-pion(+) and muon(+)-proton-pion(-) in the delta (1232) is presented. A test of the PCAC hypothesis is performed. The analysis is based on 1081 events in the neutrino and on 180 events in the antineutrino reaction, obtained ...

We will describe an assembly of radiation detectors that quantifies the gamma, muon, and fast and thermal neutron fluxes present at potential above ground antineutrino detector sites. Antineutrino detectors show great promise for reactor safeguards applications, due to their ability to monitor thermal power and/or fissile content. One ...

Both Muon Colliders and Neutrino Factories require a muon source capable of producing and capturing {Omicron}(10{sup 21}) muons/year. This paper reviews the similarities and differences between Neutrino Factory and Muon Collider accelerator complexes, the ongoing R&D needed for a ...

We propose a general framework to constrain ?L = 2 processes by measuring observ-ables associated with neutrino-antineutrino oscillations in ?� decays. First, we use this formalism as a new strategy for detecting the CP-violating phases and the effective mass of muon Majorana neutrinos. Within the generic framework of quantum field theory, we compute the ...

High-intensity high-energy neutrino beams could be produced by exploiting a very intense future muon source, and allowing the muons to decay in a storage ring containing a long straight section. Taking the parameters of muon source designs that are currently under study, the characteristics of the neutrino beams that could be produced ...

Employing intense muon sources to carry out forefront low energy research, such as the search for muon - number non-conservation, or for the purpose of providing intense high energy neutrino beams ({nu}factory) represents very interesting possibilities. If successful, such efforts would significantly advance the state of muon ...

The authors describe a method for designing the acceleration systems for a muon collider, with particular application and examples for a high energy muon collider. This paper primarily concentrates on design considerations coming from longitudinal motion, but some transverse issues are briefly discussed.

I will present an analysis of muon anti-neutrino (??) disappearance using the MINOS detectors and a neutrino beam produced by the Fermilab Main Injector. The data were collected when the neutrino beamline was operated to produce muon neutrinos, with a 7% component of muon anti-neutrinos. MINOS ...

A group of researchers at Lawrence Livermore National Laboratory have designed and constructed a water-based anti-neutrino detector to be used in monitoring plutonium content of reactor cores. This detector has the advantages over previous detectors in that it has a reduced foot print near the reactor core and it will be neither toxic nor flammable as previous detectors have ...

The goal of the Daya Bay Reactor Neutrino Experiment is to precisely measure 2?(2?13) to a sensitivity of 0.01 by performing a relative measurement of electron antineutrino events with identical detectors at near and far sites. The antineutrino detectors will be placed in water pools and surrounded by at least 2.5m of water to suppress background. The ...

The authors have examined 1200 interactions with visible energies greater than 7.5 GeV produced by an anti-neutrino beam in the Fermilab 15-foot bubble chamber filled with a light neon hydrogen mixture. They have found one event with a {mu}{sup +}e{sup -} and hadrons in the final state, but with no evidence of strange particle production. This event may be an example of ...

Neutrino Factories (NF) and Muon Colliders (MC) require rapid acceleration of short-lived muons to multi-GeV and TeV energies. A Recirculating Linear Accelerator (RLA) that uses superconducting RF structures can provide exceptionally fast and economical acceleration to the extent that the ...

The muon collider is a new idea for lepton colliders. The ultimate energy of an electron ring is limited by synchrotron radiation. Muons, which have a rest mass that is 200 times that of an electron can be stored at much higher energies before synchrotron radiation limits ring performance. The problem with muons is their short life ...

During the years 1994 1997, the emulsion target of the CHORUS detector was exposed to the wide-band neutrino beam of the CERN SPS collecting about 106 neutrino interactions. A measurement of ?�?-induced charm production is performed by using the presence of a 5% ?�? component in the ?? beam. The measurement takes advantage of the capability to observe the decay topology in the emulsion. The ...

High energy neutrons, generated as a product of cosmic muon interaction in the rock or in the detector passive material, represent the most dangerous background for a large list of topics like reactor neutrino studies, the search for SN relic neutrinos, solar antineutrinos, etc.Up to now there are few measurements of the muon-produced ...

During the runs of the PS 179 experiment at LEAR of CERN, we photographed an event of antiproton Ne absorption, with a complete ????e chain. From the vertex of the reaction a very slow energy ? was emitted. The ? decays into a ? and subsequently the ? decays into a positron. At the first decay vertex a muon neutrino was emitted and at the second decay vertex an electron ...

I derive an upper bound on the electron neutrino component of the diffuse supernova neutrino flux from the constraint on the antineutrino component at SuperKamiokande. The connection between antineutrino and neutrino channels is due to the similarity of the muon and tau neutrino and antineutrino fluxes produced in ...

The Muon Ionization Cooling Experiment (MICE) at the ISIS accelerator located at the Rutherford Appleton Laboratory, UK, will be the first experiment to study muon cooling at high precision. Demonstration of muon ionization cooling is a major technological step towards the construction of a neutrino factory or a ...

The Muon Ionization Cooling Experiment (MICE) is an accelerator and particle physics experiment aimed at demonstrating the technique of ionization cooling on a beam of muons. Ionization cooling is the process by which muons are sent through an absorbing material, thereby losing energy and decreasing their ...

An overview is given of the neutrino physics potential of future muon storage rings that use muon collider technology to produce, accelerate and store large currents of muons. After a general characterization of the neutrino beam and its interactions, some crude quantitative estimates are given for the physics ...

In a counter experiment at the Princeton-Penn Accelerator, a precise measurement was made of the K-plus lifetime and the lifetime of the K-plus muon-2 decay mode. The longitudinal polarization of the muon in K-plus muon-2 decay and at two values of the mu...

Neutrino interaction investigation reveals approximately 1 percent events with two muons. An analysis of the background due to $pi$ and K meson in- flight decays allows a lepton production from a new source to be deduced (heavy lepton, new particle). (FR)

The coherent contribution of all neutrons in neutrino-nucleus scattering due to the neutral current is examined considering the Spallation Neutron Source as a source of neutrinos. Spallation Neutron Source is a prolific pulsed source of electron and muon neutrinos as well as muon antineutrinos.

Because of the relative immunity of muons to synchrotron radiation, the idea of using them instead of electrons as probes in high-energy physics experiments has existed for some time, but applications were limited by the short muon lifetime. The production and survival of an adequate supply of low-emittance muons will determine the ...

The muon collider is a new idea for lepton colliders. The ultimate energy of an electron ring is limited by synchrotron radiation. Mouns, which have a rest mass that is 200 times that of an electron can be stored at much higher energies before synchrotron radiation limits ring performance. The problem with muon is their short lifetime (2.1 microseconds at ...

We describe the scientific motivation for a new type of accelerator, the muon collider. This accelerator would permit an energy-frontier scientific program and yet would fit on the site of an existing laboratory. Such a device is quite challenging, and requires a substantial R&D program. After describing the ingredients of the ...

We describe the scientific motivation for a new type of accelerator, the muon collider. This accelerator would permit an energy-frontier scientific program and yet would fit on the site of an existing laboratory. Such a device is quite challenging, and requires a substantial R&D program. After describing the ingredients of the ...

Fixed Field Gradient (FFAG) accelerators are a promising idea for reducing the cost of acceleration for muon accelerators as well as other machines. This paper presents an automated method for designing these machines to certain specifications, and uses that method to find a minimum cost design. The dependence of ...

Recirculating linear accelerators (RLAs) using both pulsed quadrupoles and pulsed dipoles can be used to quickly accelerate muons in the 3 � 2000 GeV range. Estimates on the requirements for the pulsed quadrupoles and dipoles are presented.

A conceptual design of a muon acceleration based on recirculating superconducting linacs is proposed. In the presented scenario, acceleration starts after ionization cooling at 210 MeV/c and proceeds to 20 GeV, where the beam is injected into a neutrino f...

Intense muon sources for the purpose of providing intense high energy neutrino beams ({nu} factory) represents very interesting possibilities. If successful, such efforts would significantly advance the state of muon technology and provides intermediate steps in technologies required for a future high energy muon collider complex. High ...

The Main Injector Neutrino Oscillation Search (MINOS) experiment's Far Detector has been operational since July 2003, taking cosmic ray and atmospheric neutrino data from its location in the Soudan Mine Underground Lab. Numerous neutrino-induced muons have been observed. The detector's magnetic field allows the first determination by a large underground ...

We present a detailed analysis on nonstandard neutrino interactions (NSI) with electrons including all muon and electron (anti)-neutrino data from existing accelerators and reactors, in conjunction with the 'neutrino counting' data (e{sup +}e{sup -}{yields}{nu}{nu}{gamma}) from the four LEP collaborations. First we ...

Muon acceleration is one of the more difficult stages to develop for a Neutrino Factory or Muon Collider. The large transverse and longitudinal admittances which must be designed into the system and the rapidity with which acceleration must take place because of muon decay preclude the use of ...

We propose a 3500 ton (3000 ton fiducial volume) SiO{sub 2} neutrino detector with sampling calorimetry, charged particle tracking, and muon spectrometers to run in a Tevatron Fixed Target Program. Improvements to the Fermilab accelerator complex should allow substantial increases in the neutrino flux over the previous NuTeV quad triplet beamline. With 4 x ...

The MACRO (Monopole, Astrophysics, Cosmic Ray Observatory) detector which is being installed at the underground Gran Sasso Laboratory (LNGS) is described in detail. The performance of the detector's first supermodule (approx. 800 sq mp sr), which had its initial data run from February 27 to May 30, 1989, is reported. About 245,000 muon triggers were recorded during this first ...

This thesis presents measurements of the oscillations of muon antineutrinos in the atmospheric sector, where world knowledge of antineutrino oscillations lags well behind the knowledge of neutrinos, as well as a search for {nu}{sub {mu}} {yields} {bar {nu}}{sub {mu}} transitions. Differences between neutrino and ...

The normalized longitudinal emittance of a muon beam after six-dimensional ionization cooling appears very small compared to the value that could be utilized or maintained after acceleration to muon collider energy. This circumstance offers the possibilit...

Silylenes, germylenes and silenes react with muonium atoms, produced from muons generated at a particle accelerator. The resulting radicals can be studied by muon spin resonance spectroscopy, providing unique information about their structure and reactivity. PMID:20640249

The paper describes an experiment, performed at the Stanford Mark III electron linear accelerator, which measured the differential cross section for the asymmetric photoproduction of muon pairs from a hydrogen target, 'photon + p to negative-muon + positi...

RF cavities are used to re-accelerate muons that have beencooled by absorbers that are in low beta regions of a muon ionizationcooling channel. A superconducting coupling magnet (or magnets) arearound or among the RF cavities of a muon ionization-cooling channel. Thefield from the magnet guides the ...

There has been a recent need for muon accelerators not only for future Neutrino Factories and Muon Colliders but also for other applications in industry and medical use. We carried out simulations on a large-acceptance muon linac with a new concept 'mixed ...

We present an analysis of scaling-variable distributions in deep-inelastic antineutrino-proton interactions. The data sample of 351 antineutrino-proton and 122 neutrino-proton charged-current events was obtained from exposures of the 15-foot hydrogen bubble chamber to the wide-band antineutrino beam at Fermilab. The methods used to ...

A future neutrino detector at megaton mass might enlarge the neutrino telescope thresholds revealing cosmic supernova background and largest solar flares (SFs) neutrinos. Indeed the solar energetic (Ep>100 MeV) flare particles (protons, ?), while scattering among themselves on solar corona atmosphere must produce prompt charged pions, whose chain decays are source of a solar (electron ...

The LSND (Liquid Scintillator Neutrino Detector) experiment at Los Alamos has conducted a search for muon antineutrino {r_arrow} electron antineutrino oscillations using muon neutrinos from antimuon decay at rest. The electron antineutrinos are detected via the reaction electron ...

The NuTeV experiment at Fermilab has obtained a unique high-statistics sample of neutrino and antineutrino interactions using its high-energy sign-selected beam. We present a measurement of the differential cross section for charged-current neutrino and antineutrino scattering from iron. We determine the relative ?� to ? cross section, r=??�/??, at ...

The NuTeV experiment at Fermilab has obtained a unique high statistics sample of neutrino and anti-neutrino interactions using its high-energy sign-selected beam. We present a measurement of the differential cross section for charged-current neutrino and anti-neutrino scattering from iron. Structure functions, F{sub 2}(x,Q{sup 2}) and xF{sub 3}(x,Q{sup ...

The intensity of proton accelerator has attained to the order to mega-watt, and several MW-class proton accelerators start to operate in the world. J-PARC is a complex of three accelerators, and generates a variety of secondary beams, i.e. muon beam, neutron beam, meson beam and neutrino beam. The ...

An intense muon source can be built in stages to support a uniquely broad program in high energy physics. Starting with a low-energy cooled muon beam, extraordinarily precise lepton flavor violation experiments are possible. Upgrading the facility with acceleration and a muon storage ring, one can build a Neutrino ...

The US Department of Energy Office of High Energy Physics has recently approved a Muon Accelerator Program (MAP). The primary goal of this effort is to deliver a Design Feasibility Study for a Muon Collider after a 7 year R&D program. This paper presents a brief physics motivation for, and the description of, a ...

We have developed a concept for acceleration of a large phase-space, pulsed muon beam from 190 MeV to 50 GeV as part of a collaborative study of the feasibility of a neutrino factory based on in-flight decay of muons. The muon beam's initial energy spread...

Muon-neutrino and -antineutrino scattering off electrons was detected in a 19-ton Al spark chamber, exposed to the wide-band ? (?�) beam from the CERN proton synchrotron. The background was determined experimentally. 11 (10) genuine ??- (?�?-) e scattering events were found. The respective cross sections are (1.1+/-0.6)�10-42 (E?/GeV) cm2 and ...

Long Baseline Neutrino Experiment will search for the appearance signal of electron neutrinos and antineutrinos in the muon neutrino and muon antineutrino beam, respectively, sent from Fermilab 1300 km away. Positive appearance signal will lead to a possible measurement of CP-violation phase in the lepton sector, ...

A method to calibrate in an absolute way the solid state detectors that are used to monitor the muon flux in the (anti)neutrino beam line at the CERN SPS is described. This calibration is one way that opens the possibility to measure the (anti)neutrino flux needed for the determination of the absolute total cross-sections of ...

This note describes how a future Fermilab proton driver [1] based on TESLA superconducting linac modules can perform as both the source of protons to produce the muons and as the accelerator of the muons to be used for a neutrino factory or muon collider. Recent advances in muon cooling [2] ...

An accelerator complex that can produce ultra-intense beams of muons presents many opportunities to explore new physics. A facility of this type is unique in that, in a relatively straightforward way, it can present a physics program that can be staged and thus move forward incrementally, addressing exciting new physics at each step. At the request of the ...

The telescope was calibrated prior to launch using radioactive sources, particle accelerators, and ground-level muons. It measured protons and alpha ...

The telescope was calibrated prior to launch using radioactive sources, particle accelerators, and ground-level muons. It measured protons and alpha ...

At {nu}Fact'02, the muon-based neutrino factory was confronted with existing and planned neutrino facilities. When it was first discussed in 1999 in Lyon [1], it raised great enthusiasm, especially because it was thought to be the only machine capable of measuring CP violation in the leptonic sector. Since that time the pendulum has partially swung back. Two ...

The authors describe the current status of the research within the Muon Collaboration towards realizing a Neutrino Factory. The authors describe briefly the physics motivation behind the neutrino factory approach to studying neutrino oscillations and the longer term goal of building the Muon Collider. The benefits of a step by step staged approach of ...

We discuss the design of the muon capture front end for a {mu}{sup +}-{mu}{sup -} Collider. In the front end, a proton bunch on a target creates secondary pions that drift into a capture transport channel, decaying into muons. A sequence of rf cavities forms the resulting muon beams into strings of bunches of differing energies, aligns ...

The accelerators must take the muon beams from {approximately} 100 MeV to 2 TeV energies within the muon lifetime for a 4 TeV energy muon collider. These constraints plus the muon decay heating seriously challenge the designs of the superconducting RF (SRF) cavities and magnets in the ...

Muon Colliders have unique technical and physics advantages and disadvantages when compared with both hadron and electron machines. They should thus be regarded as complementary. Parameters are given of 4 TeV and 0.5 TeV high luminosity {mu}{sup +}{mu}{sup -} colliders, and of a 0.5 TeV lower luminosity demonstration machine. We discuss the various systems in such ...

We performed a combined analysis of electron, muon, neutrino, and anti-neutrino deep inelastic scattering structure functions of hydrogen and deuterium, within the framework of quark-parton model. The neutron to proton structure function ratio was obtained using three different techniques: electron and muon scattering experiments on ...

Experiments that search for {anti {nu}}{sub e}`s from {mu}{sup +}-decay are sensitive not only to oscillations of neutrinos into {anti {nu}}{sub e}, but also to {mu}{sup +} {r_arrow} e{sup +}{anti {nu}}{sub e}n{sub x} decays, where n{sub x} is a neutrino or an antineutrino. The author considers such muon decays and the possible size of their branching ...

Elucidating the nature of neutrino oscillation continues to be a goal in the vanguard of the efforts of physics experiment. As neutrino oscillation searches seek an increasingly elusive signal, a thorough understanding of the possible backgrounds becomes ever more important. Measurements of neutrino-nucleus interaction cross sections are key to this understanding. Searches for {nu}{sub {mu}} ...

Borexino, a liquid scintillator detector at LNGS, is designed for the detection of neutrinos and antineutrinos from the Sun, supernovae, nuclear reactors, and the Earth. The feeble nature of these signals requires a strong suppression of backgrounds below a few MeV. Very low intrinsic radiogenic contamination of all detector components needs to be accompanied by the efficient ...

The neutrino channel of the accelerator of the Institute of High-Energy Physics is described. The general characteristics of the systems for producing the neutrino beam and the properties of the neutrino and antineutrino beams are described. This paper is an introduction to a series of papers on this neutrino channel.

It is proposed to study the interactions of antineutrinos in deuterium. The initial request is for 300,000 pictures out of a total of one million pictures using the two-horn broad band system with 10{sup 13} protons (300 GeV) per pulse. We plan to use the external muon identifier. The physics motivation includes the following: (1) Search for charmed ...

The SciBooNE experiment (Fermilab) recently published results of a search for charged current coherent pion production in neutrino mode: muon neutrinos scattering on carbon, v{sub {mu}}{sup 12}C{yields}{mu}{sup -12}C{pi}{sup +}. The results of this study are that no evidence for coherent pion production is observed, and SciBooNE set 90% confidence level upper limits on the ...

A search for inclusive nu/sub mu / or anti nu/sub mu / oscillations has been performed in the Fermilab narrow band neutrino beam using two detectors running simultaneously at two distances from the neutrino source. The data show no evidence for either nu/...

Recent results on charm production by neutrinos and antineutrinos and on the measurement of the elastic scattering of muon neutrinos on electrons are discussed. Included are charm production in the GIM model, dilepton production, observation of D/sup 0/K/sup 0/..pi../sup +/..pi../sup -/, search for charmed baryons and V/sub ..mu../ e/sup -/ elastic ...

at TeV-energy and above on cosmic background radiation. #15; neutrinos propagate unabsorbed and without de propagating in the cosmic microwave background. #15; For proton- interactions muon neutrinos (and antineutrinos studies of the ux of neutrinos produced in the interactions of cosmic rays with microwave photons, the so

Muon acceleration for muon collider or neutrino factory is still in a stage where further improvements are likely as a result of further study. This report presents a design of the racetrack non-scaling Fixed Field Alternating Gradient (NS-FFAG) accelerator to allow fast muon ...

A future muon collider or neutrino factory requires fast acceleration to minimize muon decay. We have previously described an FFAG ring that accelerated muons from 10 to 20 GeV in energy. The ring achieved its large momentum acceptance using a low-emittance lattice with a small dispersion. In ...

The proposed neutrino factory will produce a defined beam of neutrinos from the decay of muons in a storage ring[1,2,3]. The storage ring will be oriented so that the neutrinos can be detected at one or more detectors several thousand kilometers from the storage ring. This report presents an overview of the proposed neutrino factory and its subsystems that use cryogenics. ...

The proposed neutrino factory will produce a defined beam of neutrinos from the decay of muons in a storage ring [1,2,3]. The storage ring will be oriented so that the neutrinos can be detected at one or more detectors several thousand kilometers from the storage ring. This report presents an overview of the proposed neutrino factory and its subsystems that use cryogenics. ...

The proposed neutrino factory will produce a defined beam of neutrinos from the decay of muons in a storage ring [1,2,3]. The storage ring will be oriented so that the neutrinos can be detected at one or more detectors several thousand kilometers from the storage ring. This report presents an overview of the proposed neutrino factory and its subsystems that use cryogenics. ...

The feasibility of muon colliders for high energy physics experiments has been under intensive study for the past few years and recent activity has focused on defining an R and D program that would answer the critical issues. An especially critical issue is developing practical means of cooling the phase space of the muons once they have been produced and ...

Both a Neutrino Factory and a Muon Collider place stringent demands on the proton beam used to generate the desired beam of muons. Here we discuss the advantages and challenges of muon accelerators and the rationale behind the requirements on proton beam energy, intensity, bunch length, and repetition rate. Example ...

Muon fluence (muons cm/sup -2/) was measured downstream of the experimental area beamlines, just beyond the Fermilab site boundary at Route 38. The purpose of these measurements was to obtain an estimate of the yearly off-site radiation exposure to the general population due to accelerator-produced muons during the ...

Over the last decade there has been significant progress in developing the concepts and technologies needed to produce, capture and accelerate {Omicron}(10{sup 21}) muons/year. This development prepares the way for a new type of neutrino source (Neutrino Factory) and a new type of very high energy lepton-antilepton collider (Muon ...

Muon fluence (muons-cm exp -2 ) was measured downstream of enclosure PW8 at three locations along the extension of the PW beamline during the 1984 800-GeV accelerator run. The main goal of these measurements was to determine muon dose-equivalent at variou...

Over the past decade, there has been significant progress in developing the concepts and technologies needed to produce, capture, and accelerate {Omicron}(10{sup 21}) muons per year. These developments have paved the way for a new type of neutrino source (neutrino factory) and a new type of very high energy lepton-antilepton collider ...

Muon Colliders offer a possible long term path to lepton-lepton collisions at center-of-mass energies (radical)s (ge) 1 TeV. In October 2006 the Muon Collider Task Force (MCTF) proposed a program of advanced accelerator R&D aimed at developing the Muon Co...

In order to increase accessibility to the {mu}SR spectroscopy for people in various fields of science and engineering, a conceptual design study was made to realize a compact and inexpensive muon source by using 300-MeV electron microtron and a large-acceptance muon-capture. Advanced radiography imaging with muon spin probes will ...

The compact scintillator device WILLI, set up in IFIN-HH Bucharest (44� 26' N latitude and 26� 04' E longitude), has been used for measurements of the charge ratio in the atmospheric muon flux. The experimental method, based on the observation of the reduced effective lifetime of negative muons stopped in matter, as compared with the lifetime of ...

A study of the mixed antineutrino and neutrino neutral current sample for a visible momenta range from 5 to 150 GeV/c has been made. Details of the experiment and analytical processes are given. The data were obtained by exposing the Fermi National Accelerator hydrogen filled 15' bubble chamber to a wide band antineutrino beam. The ...

The fluence of high-energy muons that result from the operation of the Tevatron accelerator was measured downstream of the experimental area beam lines. Profiles were determined by use of plastic scintillators and associated electronics mounted in a mobile laboratory at various locations on-site and at the site boundary. The experimental method and the ...

A 4600 Hz fast ramping synchrotron is explored as an economical way of accelerating muons from 4 to 20 GeV/c for a neutrino factory. Eddy current losses are minimized by the low machine duty cycle plus thin grain oriented silicon steel laminations and thin copper wires. Combined function magnets with high gradients alternating within single magnets form ...

The use of existing Fermilab facilities to provide beams for two muon experiments - the Muon to Electron Conversion Experiment (Mu2e) and the New g-2 Experiment - is under consideration. Plans are being pursued to perform these experiments following the completion of the Tevatron Collider Run II, utilizing the beam lines and storage rings used today for ...

SciBooNE, located in the Booster Neutrino Beam at Fermilab, collected data from June 2007 to August 2008 to accurately measure muon neutrino and anti-neutrino cross sections on carbon below 1 GeV neutrino energy. SciBooNE is studying charged current interactions. Among them, neutral pion production interactions will be the focus of this poster. The ...

SciBooNE, located in the Booster Neutrino Beam at Fermilab, collected data from June 2007 to August 2008 to accurately measure muon neutrino and anti-neutrino cross sections on carbon below 1 GeV neutrino energy. SciBooNE is studying charged current interactions. Among them, neutral pion production interactions will be the focus of this poster. The ...

We obtain the differential cross sections for the weak, strangeness changing processes, e?+p??+?e, ??+p??+??, and ??+p??+?? as well as cross sections for the processes ?�L+p??+L+, where L stands for either a muon or a tau. We do this for electron energies from threshold to 2.0 GeV, for muon energies from near threshold to 5.0 GeV, for a tau energy of ...

Harmonic number jump acceleration of muon beams in scaling FFAG rings is studied. General considerations about harmonic number jump acceleration lead to the necessity of designing rings with dispersion suppressed insertions, and in which both ?+ and ?- can be circulated in the same direction. Design principles of such a scaling FFAG ...

Optimization of the non-scaling FFAG lattice for the specific application of the muon acceleration with respect to the minimum orbit offsets, minimum path length and smallest circumference is described. The short muon lifetime requires fast acceleration. The acceleration is in this work assumed ...

We propose a high-gradient linear accelerator for accelerating low-energy muons and pions in a strong solenoidal magnetic field. The acceleration starts immediately after collection of pions from a target by solenoidal magnets and brings muons to a kinetic energy of about 200 MeV over a ...

We have studied the muon neutrino and antineutrino quasi-elastic (QEL) scattering reactions ( ? ? n? ? - p and bar{? }_{?}pto?+n ) using a set of experimental data collected by the NOMAD Collaboration. We have performed measurements of the cross-section of these processes on a nuclear target (mainly carbon) normalizing it to the total ? ? ( bar{?}_{?} ...

We have studied the muon neutrino and antineutrino quasi-elastic (QEL) scattering reactions (v?n-->?-p and v?p-->?+n using a set of experimental data collected by the NOMAD collaboration. We have performed measurements of the cross-section of these processes on a nuclear target (mainly Carbon) normalizing it to the total v? (v?) charged current ...

? AstrophysicalAstrophysical AcceleratorsAccelerators Soon ?Soon ? Nuclear Reactors (power stations, ships) Nuclear ReactorsNuclear Reactors (power stations, ships)(power stations, ships) Particle Accelerator) monitoring of nuclear reactors is possible. � Giant neutrino detector network will help. #12;Near

The Neutrino Factory is an important tool in the long-term neutrino physics program. Substantial effort is put internationally into designing this facility in order to achieve desired performance within the allotted budget. This accelerator is a secondary beam machine: neutrinos are produced by means of the decay of muons. Muons, in ...

In this note we discuss the possibility of studying the quantum electrodynamics of timelike photon propagators in muon or electron pair production by incident high energy muon or electron beams from presently available proton or electron accelerators.

We give a brief overview of recent simulation activities on the design of neutrino factories. Simulation work is ongoing on many aspects of a potential facility, including proton drivers, pion collection and decay channels, phase rotation, ionization cooling, and muon accelerators.

We present a summary of the discussions in the Exotic Collider Concepts Group. Most of the discussions were centered around the status and open problems for muon-muon and gamma-gamma colliders. In addition the group discussed some general problems and new results of accelerator physics.

The question of violation of muon number conservation is one which has occupied considerable attention and resources in recent years. The first generation of experiments at the medium energy accelerators has now been completed and the next generation of e...

There are a number of novel instrumentation issues relating to the generation cooling and acceleration of high power muon beams. Specific issues are monitoring the cooling water in the magnet nearest the target to minimize corrosion, monitoring the behavi...

We present a brief summary of the current state of conception and understanding of the accelerator physics issues for low energy muon colliders envisioned as Higgs factories, associated technological challenges and future research directions on this topic.

The NuTeV experiment obtained high statistics samples of neutrino and antineutrino charged current events during the 1996-1997 Fermilab fixed target run. The experiment combines sign-selected neutrino and antineutrino beams and the upgraded CCFR iron-scintillator neutrino detector. A precision continuous calibration beam was used to determine the ...

The NuTeV experiment obtained high statistics samples of neutrino and antineutrino charged current events during the 1996-1997 Fermilab fixed target run. The experiment combines sign-selected neutrino and antineutrino beams and the upgraded CCFR iron-scintillator neutrino detector. A precision continuous calibration beam was used to determine the ...

Detailed Monte Carlo calculations simulating the detection in the DUMAND 1-km/sup 3/ optical detector of inelastic neutrino scattering by nucleons at 2 TeV and above show that the measurement of the y distribution is subject to systematic errors due to experimental errors and intrinsic fluctuations which produce errors in the energy determinations of hadronic cascade and muon; ...

The Muon Ionization Cooling Experiment (MICE) is an experiment currently under construction at the Rutherford Appleton Laboratory (RAL) in the UK. The aim of the experiment is to demonstrate the concept of ionization cooling for a beam of muons, crucial for the requirements of a Neutrino Factory and a Muon Collider. ...

Significant progress has been made in recent years in R&D towards a neutrino factory and muon collider. The U.S. Muon Accelerator Program (MAP) has been formed recently to expedite the R&D efforts. This paper will review the U.S. MAP R&D programs for a neutrino factory and muon collider. ...

The MACRO (Monopole, Astrophysics, Cosmic Ray Observatory) detector which is being installed at the underground Gran Sasso Laboratory (LNGS) is described in detail. The performance of the detector's first supermodule ({approximately}800 m{sup 2}sr), which had its initial data run from February 27 to May 30, 1989, is reported. About 245,000 muon triggers were recorded ...

The search for ?13, the last unknown mixing angle, is extremely important in understanding the lepton flavor mixing matrix, and the CP violation in the lepton sector. Reactor neutrino experiments can provide a clean laboratory for the ?13 measurement via electron antineutrino disappearance. The Daya Bay experiment proposes to measure 2?2?13 with a sensitivity better than 0.01 ...

The relationship between advanced accelerator research and future directions for particle physics is discussed. Comments are made about accelerator research trends in hadron colliders, muon colliders, and e{sup +}3{sup {minus}} linear colliders.

Over the last decade there has been significant progress in developing the concepts and technologies needed to produce, capture, accelerate and collide high intensity beams of muons. At present, a high-luminosity multi-TeV muon collider presents a viable option for the next generation of lepton-lepton collider, which is believed to be ...

The harmonic number jump acceleration in scaling FFAG rings is considered in this paper. Constraints fixed by the acceleration scheme on the lattice design are detailed. An example of a 3.6 to 12.6 GeV muon lattice which satisfy these constraints is presented.

Advances in ionization cooling, phase space manipulations, and technologies to achieve high brightness muon beams are stimulating designs of high-luminosity energy-frontier muon colliders. Simulations of Helical Cooling Channels (HCC) show impressive emittance reductions, new ideas on reverse emittance exchange and muon bunch ...

MINOS has previously reported the results of ?? disappearance from a direct observation of muon antineutrinos. The antineutrinos studied for this purpose are taken from two types of beam configurations: (a) Forward Horn Current (FHC), optimized for ?? selection where the ?? content is 7% of the neutrino beam, and (b) Reverse Horn ...

Working Group on Accelerator Physics and Machine Design R&D at Nufact-2007 focuses on topics on accelerator physics and technical issues of hardware components associated with a Neutrino Factory or its subsystems. There were 32 presentations given at the working group. A special session was held to discuss collaboration opportunities with the ...

Working Group on Accelerator Physics and Machine Design R and D at Nufact-2007 focuses on topics on accelerator physics and technical issues of hardware components associated with a Neutrino Factory or its subsystems. There were 32 presentations given at the working group. A special session was held to discuss collaboration opportunities with the ...

The telescope was calibrated prior to launch using radioactive sources, particle accelerators, and ground-level muons. It measured protons and alpha ...

muons, and light (u, d, s) quarks are stopped in the Sun before they decay and therefore do not produce high-energy neutrinos. The top quark is expected ...

We have studied the nuclear medium effects in the neutrino (antineutrino) induced interactions in nuclei at intermediate energy region. We have applied this study to calculate the event rates for atmospheric and accelerator neutrino experiments. The study of the nuclear effects has been done for the quasielastic lepton production and the charged current ...

The Beta-Beam is a concept of large-scale facility that aims at providing pure electronic neutrino and antineutrino beams for the measurement of ?e^{} ? ?_{?}^{} oscillations. Beta-decaying nuclides are produced in large amounts in a facility of the scale of EURISOL, and are then post-accelerated and stored at large ? in a racetrack decay ring. We present ...

This Technical Memorandum (TM) summarizes the Fermilab accelerator and experiment operations for FY 2006. It is one of a series of annual publications intended to gather information in one place. In this case, the information concerns the FY 2006 Run II at the Tevatron Collider, the MiniBooNE experiments running in the Booster Neutrino Beam in neutrino and ...

In November 1997 a workshop was held at Fermilab to explore the physics potential of the first muon collider, and the physics potential of the accelerator complex at the `front-end` of the collider. An extensive physics program emerged from the workshop. This paper attempts to summarize this physics program and to identify the main conclusions from the ...

Because of the large changes required in the design of the Materials and Life Science building, the construction schedule was delayed by at least eight months. Therefore, we started construction of the building in the beginning of the fiscal year of 2004, aiming at a first beam on November in the year 2007. After commissioning of the accelerator and beam transport sections in ...

This document contains a description of a multi-year national R&D program aimed at completing a Design Feasibility Study (DFS) for a Muon Collider and, with international participation, a Reference Design Report (RDR) for a muon-based Neutrino Factory. It...

The basic principles of the application of ionization cooling to obtain high phase-space density muon beams are described, and its limitations are outlined. Sample cooling scenarios are presented. Applications of cooled muon beams in high-energy accelerators are suggested; high-luminosity ..mu../sup +/-..mu../sup -/ and ..mu..-p ...

6D cooling could be important for many areas of Advanced Accelerator Research. In the case of muons it is crucial for neutrino factories and muon colliders. We give an overview of several concepts for such ring coolers, including the results of simulations and possible testing at the MICE cooling experiment at RAL. We review the ...

6D cooling could be important for many areas of Advanced Accelerator Research. In the case of muons it is crucial for neutrino factories and muon colliders. We give an overview of several concepts for such ring coolers, including the results of simulations and possible testing at the MICE cooling experiment at RAL. We review the ...

It is shown that muon decays in straight sections of muon collider rings will naturally produce highly collimated neutrino beams that can be several orders of magnitude stronger than the beams at existing accelerators. We discuss possible experimental setups and give a very brief overview of the physics potential from such beamlines. ...

Future Muon Colliders (MC) and Neutrino Factories (NF) based on muon storage rings will require innovative linacs to: produce the muons, cool them, compress longi-tudinally and �shape� them into a beam and finally to rap-idly accelerate them to multi-GeV (NF) and TeV (MC) energies. Each of these four linac ...

Future Muon Colliders (MC) and Neutrino Factories (NF) based on muon storage rings will require innovative linacs to: produce the muons, cool them, compress longi-tudinally and �shape� them into a beam and finally to rap-idly accelerate them to multi-GeV (NF) and TeV (MC) energies. Each of these four linac ...

Six papers are included in this collection. They cover: a second interaction region for gamma-gamma, gamma-electron and electron- electron collisions; constraints on laser-driven accelerators for a high-energy linear collider; progress on the design of a high luminosity muon-muon collider; RF power source development at the RTA test facility; sensitivity ...

The use of analog neural networks as part of the DZero muon detector is considered. A study was made of tracking through a single muon chamber using neural network techniques. A hardware application based on Intel's ETANN ship was designed and used in a test beam at Fermi National Accelerator Laboratory. Plans to implement a ...

The use of analog neural networks as part of the DZero muon detector is considered. A study was made of tracking through a single muon chamber using neural network techniques. A hardware application based on Intel`s ETANN ship was designed and used in a test beam at Fermi National Accelerator Laboratory. Plans to implement a neural ...

An asymmetric muon-proton collider is proposed as an instrument for possible quark structure search. Energy of proton beam is supposed to be some 5-6 times of muon energy. Estimated luminosity of the collider with two rings--the Tevatron accelerator and {mu}-ring--is found to be of the order of 10{sup 33} s{sup -1} cm{sup -2}.

A 4600 Hz fast ramping synchrotron is studied as an economical way of accelerating muons from 4 to 20 GeV/c for a neutrino factory. Eddy current losses are minimized by the low machine duty cycle plus thin grain oriented silicon steel laminations and thin copper wires. Combined function magnets with high gradients alternating within single magnets form the ...

The proposed superconducting linear accelerator that accelerates muons from 190 MeV to 2.45 GeV will use superconducting solenoids for focusing the muon beam. The accelerator will use superconducting RF cavities. These cavities are very sensitive to stay magnetic field from the focusing ...

The Kamioka Liquid-scintillator Anti-Neutrino Detector, KamLAND, is the first terrestrial experiment to test neutrino flavor oscillation scenarios proposed to solve the solar neutrino problem. Although convincing evidence exists for neutrino oscillations to be the explanation for measuring a deficit of electron neutrinos from the sun, no one oscillation solution had yet to be ...

The Daya Bay Experiment is a neutrino-oscillation experiment designed to measure the mixing angle ?13. The goal of this experiment is a measurement of 2?2?13 to a precision of 0.01 or better. There are 2304 8'' Photomultiplier tubes (PMT) for detecting the inverse-beta decay signals from the antineutrinos and for tagging the cosmic muon events. To insure ...

We describe certain novel leptonic processes suggested by the ambidextrous model of weak interactions. Heavy charged leptons are occasionally produced by neutrinos or antineutrinos. They can decay via right-handed current-current couplings into a muon, a massive neutral lepton, and its antiparticle. Subsequent decay of the heavy neutrals yields from three ...

We present rates for same-sign dimuon production in neutrino-iron interactions with energies of 30 to 600 GeV. We find 101 neutrino and 15 anti-neutrino induced same-sign dimuons with muon momenta above 9 GeV/c. A detailed calculation indicates that the overall level and kinematic distributions of conventional backgrounds are consistent with the data. ...

Total and differential cross sections for ..nu../sub ..mu../ and /bar /nu///sub ..mu../ elastic scattering by electrons were measured. The best value of sin/sup 2/theta/sub w/, obtained by fits to the differential distributions, was found to be sin/sup 2/theta/sub w/ = 0.195 +- 0.018 +- 0.013. 11 refs., 3 figs., 1 tab.

Muon collider luminosity depends on the number of muons in the storage ring and on the transverse size of the beams in collision. Ionization cooling as it is currently envisioned will not cool the beam sizes sufficiently well to provide adequate luminosity without large muon intensities. Six-dimensional cooling schemes will reduce the ...

A new measurement of the anomalous magnetic moment (g?2) and electric dipole moment (EDM) of the positive muon is proposed with a novel technique utilizing an ultra-cold muons accelerated to 300 MeV/c and a 66 cm-diameter compact muon storage ring without focusing-electric field. It requires an intense source of ...

Muon fluence (muons-cm/sup -2/) was measured downstream of enclosure PW8 at three locations along the extension of the PW beamline during the 1984 800-GeV accelerator run. The main goal of these measurements was to determine muon dose-equivalent at various Fermilab locations, and to obtain an estimate of the yearly ...

MiniBooNE's first results on a search for an electron neutrino excess in a muon neutrino beam are presented, together with an analysis of the data within a two neutrino {nu}{sub {mu}} {yields} {nu}{sub e} appearance-only oscillation context. MiniBooNE finds excellent agreement between data and Standard Model predictions in the oscillation analysis energy region. If ...

This talk is intended as a brief report on studies of the elastic scattering of neutrinos by protons and electrons. Measurements of the ratios of muon antineutrino and muon neutrino elastic scattering on protons, and the corresponding ratio for elastic scattering on electrons minimize systematic experimental errors, and lead directly ...

A sensitive search for {nu}{sub {mu}} and {bar {nu}}{sub {mu}} decay into photons was performed in a high-intensity beam of neutrinos from {pi}{sup +} and {mu}{sup +} decay at rest. An upper limit of 68 possible {gamma}-ray events was established, leading to a lower bound on the radiative lifetime of the muon (anti)neutrino of {tau}/{ital m}{sub ...

The Fermilab fifteen-foot bubble chamber/two-plane External Muon Identifier (EMI) hybrid detector filled with Ne(47% atomic)-H/sub 2/ is exposed to the quadrupole triplet beam ( = 89 GeV, = 60 GeV). In 326,000 pictures there are 10,148 neutrino and 1773 antineutrino charged current events with two-plane EMI muon identification and ...

The Neutrino Factory has been proposed as a facility to provide an intense source of neutrinos suitable for the measurement of neutrino oscillation parameters and a possible CP violating phase to unprecedented precision. In the Neutrino Factory, neutrinos are produced by the decay of a muon beam with 20-50 GeV per muon. Initially, the ...

We discuss alternative designs of the muon capture front end of the Neutrino Factory International Design Study (IDS). In the front end, a proton bunch on a target creates secondary pions that drift into a capture channel, decaying into muons. A sequence of RF cavities forms the resulting muon beams into strings of bunches of differing ...