Possibilities of searching neutrino oscillations in experiments at nuclear reactors within large distances (hundred metres) from a reactor-detector are considered. It is shown that the accuracy of estimation of the mass square difference of basic neutrino...

We study the effect of naval nuclear reactors on the study of neutrino oscillations. We find that the presence of naval reactors at unknown locations and times may limit the accuracy of future very long baseline reactor-based neutrino oscillation experiments. At the same time, we argue that a ...

Topics covered in the workshop include: extra-terrestrial and reactor neutrinos; accelerator neutrinos; neutrino mass; neutrino oscillations; and intense neutrino beams. (GHT)

Topics covered in the workshop include: extra-terrestrial and reactor neutrinos; accelerator neutrinos; neutrino mass; neutrino oscillations; and intense neutrino beams. (ERA citation 06:029442)

Possible types of neutrino oscillations are considered. Together with neutrino oscillations based on analogies with oscillations of K(sup 0) and K-tilde(sup 0) mesons, virtual neutrino oscillations (here neutrinos produced in the ...

The status of neutrino oscillation searches employing nuclear reactors as sources is reviewed. This technique, a direct continuation of the experiments that proved the existence of neutrinos, is today an essential tool in investigating the indications of oscillations found in studying neutrinos ...

A summary is presented of various possible and active experiments to search for neutrino oscillations.

The current status of neutrino oscillations is reviewed. {copyright} {ital 1998 American Institute of Physics.}

This thesis explains the origins of neutrinos and their interactions, and the phenomenon of neutrino oscillations. Experiments for measuring neutrino oscillations are mentioned and the experiment investigated in this thesis, the ''Main Injector Neutrino ...

The interplay between resonant solar neutrino oscillations and neutrino oscillations in laboratory experiments is investigated in a 3 generation model. Due to the assumed hierarchy of neutrino masses, together with our choice of a convenient parameterizat...

It is not necessary that the electron neutrino and muon neutrino themselves have mass for oscillations to occur. For N neutrinos, if one is massive, oscillations occur with unique oscillation length determined by the mass of the heavy neutrino, ...

The status and the prospects of neutrino oscillation at nuclear reactors is reviewed. Neutrino oscillations are the best tool for probing neutrino mass and lepton number non-conservation. Five neutrino oscillation experiments have been carried out since ...

The special properties of solar neutrinos that render this flux so uniquely important in searches for neutrino masses and flavor mixing are reviewed. The effects of matter, including density fluctuations and turbulence, on solar neutrino oscillations are ...

A phenomenology of neutrino oscillations is presented, based on the assumption that massless neutrinos are refracted in ordinary matter by an interaction, important at low energy, which causes transitions between neutrinos of differing kind. The predictio...

The possible atmospheric neutrino deficit is reviewed with an emphasis on recent data. The regions of (Delta)m(sup 2) implied by a neutrino oscillation hypothesis are considered.

The possible atmospheric neutrino deficit is reviewed with an emphasis on recent data. The regions of {Delta}m{sup 2} implied by a neutrino oscillation hypothesis are considered.

The high flux of neutrinos available at the LAMPF linac beam stop has been used to search for neutrino oscillations and neutrino disappearance. Past and present experiments at the facility are described. (GHT)

A brief review of the status of three studies is given: the direct measurement of the neutrino mass, double beta decay, and various searches for neutrino oscillations. (WHK)

The lectures began by providing some background to neutrino mixing and masses. Flavour oscillations were then described, with the experimental attempts to detect them among: solar neutrinos; high energy atmospheric neutrinos; and in fission reactors, meso...

It is hoped that the DUSEL Long Baseline Experiment, one of the latest proposed neutrino experiments, will give scientists a reasonable measurement of the amount of CP symmetry violation in neutrino oscillations. This information could help scientists explain the matter/anti-matter asymmetry observed in the universe. The study ...

We investigate numerically how accurately one could constrain the strengths of different short-range contributions to neutrino-less double beta decay in effective field theory. Depending on the outcome of near-future experiments yielding information on the neutrino masses, the corresponding bounds or estimates can be stronger or weaker. A particularly ...

There is no unambiguous definition for long baseline neutrino oscillation experiments. The term is generally used for accelerator neutrino oscillation experiments which are sensitive to (Delta)m(sup 2)

Gary Feldman Neutrino Oscillations Neutrino Oscillations 1. Introduction 2. Status and Prospects A. Solar Neutrinos B. Atmospheric Neutrinos C. LSND Experiment D. High-Mass Neutrinos 3. Conclusions Plenary talk given at DPF'99 UCLA, January 9, 1999 ...

We derive an analytical description of neutrino oscillations in matter based on the Magnus exponential representation of the time evolution operator. Our approach is valid in a wide range of the neutrino energies and properly accounts for the modifications that the respective probability transitions suffer when ...

We derive an analytical description of neutrino oscillations in matter based on the Magnus exponential representation of the time evolution operator. Our approach is valid in a wide range of the neutrino energies and properly accounts for the modifications that the respective probability transitions suffer when ...

We present a formalism for precise description of oscillation phenomena in matter at high energies or high densities, V>{delta}m{sup 2}/2E, where V is the matter-induced potential of neutrinos. The accuracy of the approximation is determined by the quantity sin{sup 2}2{theta}{sub m}{delta}V/2{pi}V, where {theta}{sub m} is the ...

physics #12;Outline Neutrino oscillations Non-standard effects Application to Dark Matter Summary 1 Neutrino of neutrino oscillation physics #12;Outline Neutrino oscillations Non-standard effects Application to Dark Matter physics #12;Outline ...

This thesis explains the origins of neutrinos and their interactions, and the phenomenon of neutrino oscillations. Experiments for measuring neutrino oscillations are mentioned and the experiment investigated in this thesis, the Main Injector Neutrino Osc...

A search for neutrino oscillations was made using the Fermilab narrow-band neutrino beam and the 15 ft. bubble chamber. No positive signal for neutrino oscillations was observed. Limits were obtained for mixing angles and neutrino mass differences for nu/...

Neutrino oscillation was discovered through studies of neutrinos produced by cosmic-ray interactions in the atmosphere. These neutrinos are called atmospheric neutrinos. They are produced as decay products in hadronic showers resulting from collisions of cosmic rays with nuclei in the ...

We analyze recent solar neutrino data in the context of three flavor neutrino oscillation to understand the value of ?13.

We analyze the effects of charged lepton corrections and renormalization group (RG) running on the low energy predictions of theories which accurately predict tri-bimaximal neutrino mixing at the high energy scale. In particular we focus on grand unified theory (GUT) inspired seesaw models with accurate tri-bimaximal neutrino mixing at the GUT scale, in ...

We discuss the need of a proton driver for the Fermilab neutrino oscillation program, as well as its role in the global context.

We consider the determination of the solar neutrino oscillation parameters ?m212 and ? by studying oscillations of reactor anti-neutrinos emitted by nuclear power plants (located mainly in France) with a detector installed in the Frejus underground laboratory. The performances of a water ?erenkov detector of 147 kt ...

We propose a conceptually and computationally simple method to evaluate the neutrinos emitted by supernova remnants using the observed {gamma} ray spectrum. The proposed method does not require any preliminary parametrization of the gamma ray flux; the gamma ray data can be used as an input. In this way, we are able to propagate easily the observational errors and to ...

A review of the title subject is given. The phenomenology of neutrino oscillations in the framework of the so-called neutrino Standard Model ( \

The complete phenomenological treatment of the neutrino oscillation is given. The most general form of the mass matrix for N types of neutrino in the presence of both Dirac and Majorana mass terms is discussed and the form of operator corresponding to the...

Properties of the neutrinos emitted during an accretion of white dwarf matter by a primordial black hole are considered. The possibility of detecting these neutrinos and their oscillations is discussed.

We present a selective overview of neutrino physics with a strong emphasis in the Mexican contribution to this topic. Our scope of the subject put the emphasis on topics like the neutrino oscillations and electromagnetic properties, as well as the treatment of neutrinos in dense media.

IHEP Daya Bay Neutrino Experiment About the experiment The Daya Bay Neutrino Experiment is a neutrino-oscillation experiment designed to measure the mixing angle q13 using...

Neutrino induced transition rates from 205Tl to excited states in 205Pb were calculated for neutrino fluxes from the different hydrogen burning reactions in the Sun. Suppression factors for electron neutrinos due to flavor oscillations in the Sun were obtained. The influence of neutrino ...

The construction of large-volume detectors of high energy, greater than 1TeV, neutrinos is mainly driven by the search for extragalactic neutrino sources. The existence of such sources is implied by the observations of ultra-high-energy, greater than or equal to 1019eV, cosmic rays, the origin of which is a mystery. In this lecture, I briefly discuss the ...

The observation of neutrino oscillations (neutrino changing from one flavor to another) has provided compelling evidence that the neutrinos have non-zero masses and that leptons mix, which is not part of the original Standard Model of particle physics. Th...

Test on masses of neutrinos below the 1 eV level are reviewed, and the limits of present experimental methods used to look for neutrino oscillations are discussed. A tagged neutrino experiment is suggested. The usual neutrino detector is supplemented by a...

Theoretical concepts and motivations for considering neutrinos having finite masses are discussed and the experimental situation on searches for neutrino masses and oscillations is summarized. The solar neutrino problem, reactor, deep mine and accelerator...

We derive the standard formalism of Mikheyev, Smirnov, and Wolfenstein for the oscillation of neutrinos in matter taking into account the Lorentz and second-quantized structure of the neutrino fields. We consider neutrinos with Dirac or Majorana masses.

Neutrino flavor oscillations can significantly alter the cross section for neutrino-electron scattering. As a result, such oscillations can affect the comparison between existing reactor data and theories of neutral-current processes. They may also lead t...

The neutrino oscillation explanation ({nu}{sub {mu}} {yields} {nu}{sub {tau}}) of the atmospheric neutrino deficit is often discussed but is far from widely accepted. This paper discusses several experimental observations, and how a consistent picture pointing towards neutrino oscillations ...

Supernovae of Type II is a phenomenon that occurs at the end of the evolution of massive stars when the iron core of the star exceeds a mass limit. After the collapse of the core under gravity the shockwave alone does not succeed in expelling the mass of the star and in this sense the role of neutrinos is the most important mechanism to do so. During the emission of ...

We present new formalism for description of the neutrino oscillations in matter with varying density. The formalism is based on the Magnus expansion and has a virtue that the unitarity of the S-matrix is maintained in each order of perturbation theory. We show that the Magnus expansion provides better convergence of series: the restoration of unitarity ...

The Main Injector Neutrino Oscillation Search (MINOS) is a long baseline neutrino oscillation experiment based at the Fermi National Accelerator Laboratory (FNAL) in Chicago, Illinois. MINOS measures neutrino interactions in two large iron-scintillator tracking/sampling calorimeters; the Near ...

Recent studies of neutrino oscillations have established the existence of finite neutrino masses and mixing between generations of neutrinos. The combined results from studies of atmospheric neutrinos, solar neutrinos, reactor antineutrinos and ...

Recent studies of neutrino oscillations have established the existence of finite neutrino masses and mixing between generations of neutrinos [1]. The combined results from studies of atmospheric neutrinos, solar neutrinos, reactor antineutrinos and ...

This issue is devoted to the neutrino and its remaining mysteries. It is divided into the following areas: (1) The Reines-Cowan experiment -- detecting the poltergeist; (2) The oscillating neutrino -- an introduction to neutrino masses and mixing; (3) A brief history of neutrino experiments at ...

The status of knowledge with respect to neutrinos is reviewed. Questions covered briefly include whether or not a neutrino is its own antiparticle and neutrino mass. Experimental studies are also considered, including neutrino oscillations, double beta decay, and direct ...

Experimental approaches to neutrino mass include kinematic mass measurements, neutrino oscillation searches at rectors and accelerators, solar neutrinos, atmospheric neutrinos, and single and double beta decay. The solar neutrino results yield fairly stro...

We study the evolution of linear density fluctuations of free-streaming massive neutrinos at redshift of z<1000, with an explicit justification on the use of a fluid approximation. We solve the collisionless Boltzmann equation in an Einstein de-Sitter (EdS) universe, truncating the Boltzmann hierarchy at lmax?=1 and 2, and compare the resulting density contrast of ...

A connection between the results of solar neutrino experiments and reactor neutrino oscillation experiments is discussed. In the general case of n massive neutrinos a relation is obtained between the maximal and minimal values of the coefficient of attenuation (due to oscillations) of the flux ...

The main goal of the IceCube Deep Core Array is to search for neutrinos of astrophysical origins. Atmospheric neutrinos are commonly considered as a background for these searches. We show here that cascade measurements in the Ice Cube Deep Core Array can provide strong evidence for tau neutrino appearance in atmospheric ...

Since the energy of a reactor neutrino is a few MeV, all ?m122, ?m232 and ?m132 oscillations are accessible by reactor neutrino experiments. KamLAND observed the ?m122 oscillation and currently Double Chooz, RENO and Dayabay experiments are under construction aiming to detect ?m132+?m232 ...

We review the rich phenomena associated with neutrino flavor transformation in the presence of neutrino self-coupling. Our exposition centers on three collective neutrino oscillation scenarios: (a) a simple bipolar neutrino system that initially consists of monoenergetic ?e and [Formula: see ...

The special properties of solar neutrinos that render this flux so uniquely important in searches for neutrino masses and flavor mixing are reviewed. The effects of matter, including density fluctuations and turbulence, on solar neutrino oscillations are explained through analogies with more familiar atomic physics ...

Oscillations of three neutrinos in matter are analyzed by using the Magnus expansion for the time-evolution operator. We derive a simple expression for the electron-neutrino survival probability which is applied to the examination of the effect of a third neutrino on the nonadiabatic flavor transformations.

Experimental evidence for neutrino oscillations is so far inconclusive. Experimental data for the neutrino mass yields <5 eV from double beta decay and m<20 eV for the electron antineutrino. A review of these experimental data is given. (AIP)

We re-analyze the constraints on atmospheric nu /sub e/ and nu /sub mu / fluxes due to three-neutrino oscillations and investigate the anomalous neutrino fluxes recently observed at Kamiokande. We find that it is difficult to explain the data by nu /sub e...

In these lectures we first summarize the general formalism of neutrino oscillations and treat the cases of two and three neutrino flavors in more detail. We then discuss some general experimental and numerical aspects and give a survey of the various type...

We investigate to what extent the oscillation or conversion of neutrinos enhances the expected event rate of the supernova relic neutrino background (SRN) at the Super-Kamiokande detector (SK). The SRN \\bar\

Some theoretical aspects of a nonzero value for the neutrino rest mass and its possible implications for physics are discussed. The nature of the neutrino mass is analyzed, as well as the physical consequences that may derive from the existence of new helicity states for the neutrino or from lepton charge nonconservation if the mass is ...

The possibility that non-conventional neutrino oscillations take place in the superstring inspired E

The results of the solar neutrino experiment are given and compared to the most recent standard solar model calculations. The observations are about a factor of 4 below theoretical expectations. In view of the uncertainties involved in the theoretical models of the Sun, the discrepancy is not considered to be evidence for neutrino ...

We reexamine neutrino oscillations in the early universe. Contrary to previous studies, we show that large neutrino asymmetries can arise due to oscillations between ordinary neutrinos and sterile neutrinos. This means that the big bang nucleosynthesis (BBN) bounds on the ...

This paper contains brief synopsis of the following major topics discussed in the neutrino and nonaccelerator parallel sessions: dark matter; neutrino oscillations at accelerators and reactors; gamma-ray astronomy; double beta decay; solar neutrinos; and the possible existence of a 17-KeV ...

The status of knowledge with respect to neutrinos is reviewed. Questions covered briefly include whether or not a neutrino is its own antiparticle, and neutrino mass. Experimental studies are also considered, including neutrino oscillations, double beta d...

Current knowledge of the neutrino mass, double ?-decay, and neutrino oscillations is reviewed and recent neutrino experiments are discussed in detail. The discovery and basic studies of ?e, ??, and ?? are briefly described in historical perspective. Projected experiments and techniques as well as prospects for the ...

The matrix of electromagnetic moments of neutrinos and the possibility that some of the moments are as large as of the order of 10/sup -10/ of the Bohr magneton are discussed. Oscillations between neutrino flavors as well as neutrino spin precession in th...

There is compelling evidence for neutrino flavor change as neutrinos propagate. The evidence for this phenomenon has been provided by several experiments observing neutrinos that traverse distances of several hundred kilometers between production and detection. This review outlines the evidence for neutrino flavor ...

This is a lecture given at the Gif Summer School held in 1992 in Montpellier. It contains three chapters. These are devoted to neutrino oscillations, to the nuclear reactors used as neutrino sources, and to the experiments performed with neutrinos from nu...

It is shown that neutrino mixing, of the type required for neutrino oscillations, will complicate efforts to determine the electron neutrino mass from beta decay spectra. The shape of the spectra will depend on the masses and mixing angles of all neutrino...

We study the propagation of neutrinos in gravitational fields using wave functions that are exact to first order in the metric deviation. For illustrative purposes, the geometrical background is represented by the Lense-Thirring metric. We derive explicit expressions for neutrino deflection, helicity transitions, flavor oscillations, ...

We give a phenomenological model of CPT violating neutrino oscillation above the GUT scale. In this paper, we consider the effect of Planck scale operators on neutrino mixing. We assume that the main part of neutrino masses and mixing arise through GUT scale operators The dispersion relation for the CPT violating ...

The theoretical arguments for neutrino mass are reviewed, and the present status of searches for neutrino mass in neutrino oscillations, direct measurements and other experiments are summarized. 46 references.

neutrino detector at the south pole. ... The neutrino has been central to a number of important ... firmation and study of neutrino oscillations (Halzen, 1995). ...

Two topics are addressed, the interactions of neutrinos during a type II supernova and the effect of current eddies on solar neutrino oscillations. The supernova discussion focuses on the nucleosynthesis that accompanies inelastic neutral current interact...

The (nu)(sub (tau)) is, together with the top quark, the only fundamental constituent not yet observed experimentally. Ways of producing detectable fluxes of this third neutrino are discussed. In particular, the search for neutrino oscillations into the (...

These lectures describe some aspects of the physics of massive neutrinos. After a brief introduction of neutrinos in the Standard Model, I discuss possible patterns for their masses. In particular, I show how the presence of a large Majorana mass term for the right-handed neutrinos can engender tiny neutrino masses ...

The present status of neutrino masses, mixing, and electromagnetic moments is surveyed. Potential enhancements of neutrino oscillations, decay, and spin-flavor precession due to their interactions with matter are described.

It has been pointed out by Bahcall and Bethe and others that all solar neutrino data can be explained by MSW oscillations with m([nu][sub [mu

Home Physics Impact - Neutrino Oscillation - Geo-Neutrinos - Solar Neutrinos Talks & Papers Figures & Plots Student Dissertations Pictures Collaboration Portrait Berkeley...

The Daya Bay Neutrino Experiment Dawei Liu LBNL Abstract: Recent results showed that neutrinos undergo flavor oscillation and have finite masses. So far two of the three neutrino...

Super-Kamiokande is the world's largest water Cherenkov detector, with a net mass of 50,000 tons. The scientific goals of the experiment include searches for proton decays, and studies of neutrinos from various sources. In this paper we review some of the latest results from our neutrino oscillations studies using atmospheric ...

Neutrino oscillations are experimentally observable only as a result of interference between neutrino states with different masses and the same energy. All interference effects between neutrino states having different energies are destroyed by the interaction between the incident neutrino and ...

Experimental approaches to neutrino mass include kinematic mass measurements, neutrino oscillation searches at rectors and accelerators, solar neutrinos, atmospheric neutrinos, and single and double beta decay. The solar neutrino results yield fairly strong and consistent ...

We review the current status of experimental knowledge about neutrinos derived from kinematic mass measurements, neutrino oscillation searches at reactors and accelerators, solar neutrinos, atmospheric neutrinos, and single and double beta decay. The solar neutrino results ...

We review the current status of experimental knowledge about neutrinos derived from kinematic mass measurements, neutrino oscillation searches at reactors and accelerators, solar neutrinos, atmospheric neutrinos, and single and double beta decay. The solar neutrino results ...

The KamLAND experiment uses reactor anti-neutrinos to study the solar neutrino oscillation parameters. KamLAND recently updated the reactor neutrino measurement, with almost a factor 5 more statistics than previously reported. The measured spectral distortion in the anti-neutrino spectrum ...

The MINER?A experiment at Fermilab propose a fully-active scintillator based fine grained neutrino detector exposed to the high rate NuMI neutrino beam. Minerva will measure low energy neutrino interaction properties and cross-sections to a new level of precision. These measurements will be critical input to ...

A brief review for particle physicists on the cosmological impact of neutrinos and on restrictions on neutrino properties from cosmology is given. The paper includes a discussion of upper bounds on neutrino mass and possible ways to relax them, methods to observe the cosmic-neutrino background, bounds on the ...

We show that the standard expression for the neutrino oscillation length can be confirmed even in theoretical approaches that take into account entanglement between the neutrino and its interaction partners. We show this in particular for the formalism developed in arXiv:1004.1847. Finally, we shed some light on the question why ...

The possible excitation of gravitational oscillations of the solar core is analyzed. Such oscillations might be responsible for a 2-yr cycle in the flux of solar neutrinos.

A progress report on the neutrino oscillation experiment undertaken at two distances from the core of a PWR reactor of the Bugey power plant is presented. (Atomindex citation 14:774634)

A method developed from the Dualized Standard Model for calculating the quark CKM matrix and masses is applied to the parallel probem in neutrino oscillations.

The results from neutrino oscillation experiments at nuclear reactors are reviewed with focus on the experiment at the Goesgen reactor. 10 refs., 12 figs., 2 tabs. (ERA citation 13:007973)

We show that the phase appearing in neutrino flavor oscillation formulae has a geometric and topological contribution. We identify a topological phase appearing in the two flavor neutrino oscillation formula using Pancharatnam's prescription of quantum collapses between nonorthogonal states. Such quantum ...

The results of the Brookhaven solar neutrino experiment are given and compared to the most recent standard solar model calculations. The observations are about a factor of 4 below theoretical expectations. In view of the uncertainties involved in the theoretical models of the sun, the discrepancy is not considered to be evidence for neutrino ...

In the Hugs 2002 student seminar sessions, I treat a number of topical issues in neutrino physics: the phenomenology of the MSW mechanism; a brief discussion of global analysis of atmospheric and solar neutrinos; Dirac and Majorana neutrino masses and the Seesaw mechanism as an explanation for the smallness of the ...

The standard theory of neutrino oscillations is reviewed, highlighting the main assumptions: the definition of the flavor states, the equal-momentum assumption and the time = distance assumption. It is shown that the standard flavor states are correct approximations of the states that describe neutrinos in ...

The recent results from Super-Kamiokande atmospheric and solar neutrino observations opens a new era in neutrino physics and has sparked a considerable interest in the physics possibilities with a Neutrino Factory based on the muon storage ring. We present physics opportunities at a Neutrino Factory, and prospects ...

Current ideas on neutrino oscillation plus confirmation from neutrino experiments make possible the changing of neutrino flavor due to interactions with the electrons in medium. When neutrinos pass through a medium and interact with the electrons, an effective potential energy is produced due ...

One of the most popular inquiries in particle physics today is the flavor mixing problem as we see in the neutrino oscillation phenomena. Although the flavor mixing problem has been explored with the Pontecorvo formalism in quantum mechanics, more advances have been made in our understanding through the quantum field theory. By taking the effects of the ...

Neutrinos play very important roles in core-collapse supernovae as they constitute 99% of the total energy budget of the collapse. Because the charged-current neutrino processes are flavor dependent, neutrino flavor transformation or neutrino oscillations, depending on where it occurs and how ...

Assuming 3-? mixing, massive Majorana neutrinos and neutrinoless double-beta (?0?-) decay generated only by the (V?A) charged current weak interaction via the exchange of the three Majorana neutrinos, we briefly review the predictions for the effective Majorana mass || in ?0?-decay and reanalyze the physics potential of future ?0?-decay ...

In the light of recent neutrino oscillation and nonoscillation data, we revisit the phenomenological constraints applicable to three observables sensitive to absolute neutrino masses: The effective neutrino mass in single beta decay (m{sub {beta}}); the effective Majorana neutrino mass in ...

The interpretation of the results of early solar and atmospheric neutrino experiments in terms of neutrino oscillations has been verified by several recent experiments using both, natural and man-made sources. The observations provide compelling evidence in favor of the existence of neutrino masses and mixings. ...

The interpretation of the results of early solar and atmospheric neutrino experiments in terms of neutrino oscillations has been verified by several recent experiments using both, natural and man-made sources. The observations provide compelling evidence in favor of the existence of neutrino masses and mixings. ...

A search for neutrino oscillations was made using the Fermilab narrow-band neutrino beam and the 15 ft. bubble chamber. No positive signal for neutrino oscillations was observed. Limits were obtained for mixing angles and neutrino mass differences for nu/sub ..mu../ ...

The factors that complicate observations of neutrino oscillations in experiments carried out to date are examined. An underground low-background radiochemical experiment is proposed which employs a monoenergetic neutrino source (K-capture). Such an experimental setup prevents the breakdown of the coherence of the ...

Neutrino oscillations were sought in a wideband neutrino beam at Fermilab using the 15-foot bubble chamber. No evidence was found for neutrino oscillations and set upper limits on the mixing angles and neutrino mass differences in the transitions: ..nu../sub ..mu../ ...

Experiments related neutrino oscillations are reviewed. Special emphases on solar neutrinos, atmospheric neutrinos and LSND and related experiments are made. The results from these experiments suggest neutrino oscillations. New data from Super-Kamiokande on solar and ...

The problems of the different type neutrino oscillations based on a wide-band and narrow-band neutrino beam from the 600 GeV UNK-1 machine using the Baical Neutrino Telescope (4200 km from a accelerator) are discussed. The main parameters of the neutrino ...

We study the coherence condition for a neutrino to keep coherence between the effective mass eigenstates in the presence of matter and examine whether or not resonant neutrino oscillation (RNO) happens in the cases of solar and SN 1987A neutrinos. As a result, it becomes evident that RNO is possible in the ...

The theory of neutrino mixing and neutrino oscillations, as well as the properties of massive neutrinos (Dirac and Majorana), are reviewed. More specifically, the following topics are discussed in detail: (i) the possible types of neutrino mass terms; (ii) oscillations of ...

MINOS is a long-baseline neutrino oscillations experiment located at Fermi National Accelerator Laboratory (FNAL), USA. It makes use of the NuMI neutrino beamline and two functionally identical detectors located at distances of 1km and 735km from the neut...

The Sun is a source of high energy neutrinos (E > 10 GeV) produced by cosmic ray interactions in the solar atmosphere. We studied the impact of three-flavor oscillations on the solar atmosphere neutrino fluxes observable at Earth. We find that peculiar ma...

The problem about the maximum decrease of the detectable solar neutrino flux, related to neutrino oscillations, is discussed for the case when reactor (or accelerator) experiments indicate the presence of small amplitude oscillations. 17 refs. (Atomindex ...

The electron anti-neutrino on deuterons reaction is a possible way to observe neutrino oscillations, and an indication for their existence has been obtained by a group of the Irvine University with a nuclear reactor. A new experimental project at Bugey PW...

Neutrino oscillations in different schemes of neutrino mixing requiring an even number of charged leptons are investigated. The theory with only either Dirac or Majorana mass terms is considered. It is shown that the Dirac and Majorana mass cases are dist...

2.1 Neutrino Oscillations................................. 5 2.1.1 The Open Questions and Their Importance................. 5

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.

The Magnus expansion of the evolution operator is used to find approximate analytical solutions to the problem of three neutrino oscillations in matter with varying density. Survival probabilities are calculated for the case of solar and supernova neutrinos.

Recent results from the MINOS accelerator neutrino experiment suggest a possible difference between Vμ and μ disappearance oscillation parameters, which one may ascribe to a new longdistance potential acting on neutrinos.

In the present thesis the experiment of the CDHS collaboration on the search for inclusive muon-neutrino oscillations is described. The event rates of nu /sub mu / reactions via charged currents was simultaneously measured in two detectors which were 130 ...

The MINOS long-baseline experiment will use an intense neutrino beam, generated by Fermilab's Main Injector accelerator, and 730 km flight path to search for neutrino oscillations. The 10,000 ton MINOS far detector will utilize toroidally magnetized steel...

We propose a new mechanism of leptogenesis in which the asymmetries in lepton numbers are produced through the CP-violating oscillations of ''sterile'' (electroweak singlet) neutrinos. The asymmetry is communicated from singlet neutrinos to ordinary lepto...

The neutrino oscillation explanation ((nu)(sub (mu)) yields (nu)(sub (tau))) of the atmospheric neutrino deficit is often discussed but is far from widely accepted. This paper discusses several experimental observations, and how a consistent picture point...

Neutrino oscillations were first discovered by experiments looking at neutrinos coming from extra-terrestrial sources, namely the sun and the atmosphere, but we will be depending on earth-based sources to take many of the next steps in this field. This ar...

Solar neutrino experiments observed fluxes smaller than the expectations from the standard solar model. This discrepancy is known as the "solar neutrino problem". Flux measurements by Super-Kamiokande and SNO have demonstrated that the solar neutrino problem is due to neutrino oscillations. ...

A sensitive search for inclusive neutrino oscillations has been performed using two similar detectors running simultaneously at different locations in the Fermilab dichromatic muon-neutrino beam. The preliminary results show no significant oscillation signal and rule out inclusive oscillations ...

Results from neutrino oscillation experiments in the last ten years have revolutionized the field of neutrino physics. While the overall oscillation picture for three neutrinos is now well established and precision measurements of the oscillation paramete...

A short introduction summarizes the experimental high energy field of neutrino oscillations and the oscillation notations. Then the results obtained by experiments on atmospheric neutrino oscillations are summarized and discussed. At the beginning of the new century a number of long baseline ...

I recall the place of neutrinos in the electroweak theory and summarize what we know about neutrino mass and flavor change. I next review the essential characteristics expected for relic neutrinos and survey what we can say about the neutrino contribution to the dark matter of the Universe. Then I discuss the ...

studying low energy neutrino oscillation. The experiment has discovered a large deficit of the reactor and mini�Workshop for Scintillating Crystals and their Applications in Particle and Nuclear Physics". (Nov of the reactor neutrinos[1]. KamLAND is the neutrino detector which is designed to detect low energy ...

The thermal excitation, via neutrino oscillations, of sterile neutrinos in the early universe is examined. Calculations are performed to find the number of extra neutrino degrees of freedom that are in thermal equilibrium at the time of nucleosynthesis. S...

In this paper we describe the recently-completed Spallation Neutron Source (SNS) at the Oak Ridge National Laboratory (ORNL), along with a proposed long-term neutrino physics program to study neutrino-nucleus cross-sections and neutrino oscillations.

A gallium solar neutrino detector is sensitive to the full range of the solar neutrino spectrum, including the low-energy neutrinos from the fundamental proton-proton fusion reaction. If neutrino oscillations in the solar interior are responsible for the ...

This report gives the results of the Brookhaven solar neutrino experiment that is based upon the neutrino capture reaction, exp 37 Cl( nu ,e exp - ) exp 37 Ar. The experiment was built in 1967 to test the theory of solar energy production, and it is well ...

The results of the Brookhaven solar neutrino experiment that is based upon the neutrino capture reaction, sup 37 Cl(nu, e sup - ) sup 37 Ar are given. The experiment was built in 1967 to test the theory of solar energy production, and it is well known tha...

We analyzed the electron neutrino data of the Gallium radioactive source experiments and the electron antineutrino data of the reactor Bugey and Chooz experiments in terms of neutrino oscillations. We found a hint of a CPT-violating asymmetry of the effective neutrino and antineutrino mixing angles.

The resonant amplification of neutrino oscillations in the presence of flavor-changing neutrino interactions with matter is analyzed. It is shown that a significant (mu)-flavor conversion can take place even in the absence of neutrino mixing in vacuum. To...

The hypothesized quantum mechanical process in which neutrinos transform from one ''flavor'' into another can be suited by observing solar neutrinos with a new generation of highly sensitive detectors.

Latest results from reactor experiments are reported. Experiments conducted at the Bugey 3 and 4 reactors to record neutrino energy spectra at various distances from the neutrino source are presented. Other reactor neutrino results are also reported. Ulti...

The problem of the neutrino mass and L-conservation is discussed. A short review of some concrete models of neutrino mass generation is considered. Neutrino oscillations and neutrinoless double beta decay, 2 beta (o nu ), sensitive to neutrino masses and ...

We analyze the cumulative data from the SNO, KamLAND and other solar neutrino experiments in the standard scenario of three oscillating active neutrinos. We determine the solar neutrino oscillation parameters and obtain new bounds on ?x. We also place constraints on the fraction of ...

For neutrinos of O(10 keV) energies, their oscillation lengths are less than a few hundred meters, thereby suggesting the fascinating idea of oscillation experiments of small geometrical size. To help in evaluating this idea, a formalism is developed for calculating the neutrino ionization cross sections for H as ...

In the past several years, a number of experiments have searched for neutrino oscillations, where a neutrino of one type (say {bar {nu}}{sub {mu}}) spontaneously transforms into a neutrino of another type (say {bar {nu}}{sub e}). For this phenomenon to occur, neutrinos must be massive and the ...

A water Cerenkov detector is discussed in which solar neutrinos are detected through their elastic scattering off electrons in a water molecule. The detection rate for solar neutrinos in water is determined for various neutrino oscillation parameters and detector thresholds, considering ...

Copious neutrinos with energies of a few tens of MeV are produced at the SNS as a free by-product. This neutrino source is ideal for various neutrino experiments. I will describe the properties of such stopped-pion-beam sources of neutrinos, and will discuss the potential for measurements of ...

The particle physics Standard Model has been tremendously successful in predicting the outcome of a large number of experiments. In this model Neutrinos are massless. Yet recent evidence points to the fact that neutrinos are massive particles with tiny masses compared to the other particles in the Standard Model. These tiny masses allow the ...

We investigate collective flavor oscillations of supernova neutrinos at late stages of the explosion. We first show that the frequently used single-angle (averaged coupling) approximation predicts oscillations close to, or perhaps even inside, the neutrinosphere, potentially invalidating the basic neutrino ...

We investigate collective flavor oscillations of supernova neutrinos at late stages of the explosion. We first show that the frequently used single-angle (averaged coupling) approximation predicts oscillations close to, or perhaps even inside, the neutrinosphere, potentially invalidating the basic neutrino ...

We argue how the pseudo Dirac scenario for neutrinos leads to rich neutrino oscillation phenomena, including oscillation inside each generation. The pseudo Dirac scenario is generalized by incorporating generation mixings and formulas for the various neutrino oscillations ...

{gamma}-ray bursts (GRBs) are likely sources of ultra-high energy, > 1019 eV, protons and high energy, > 1 TeV, neutrinos. Large volume detectors of ultra high energy cosmic rays (UHECRs) and high energy neutrinos, which are already operating and are being expanded, may allow to test in the coming few years the predictions of the GRB model ...

A consistent description of neutrino oscillations requires either the quantum-mechanical (QM) wave packet approach or a quantum field theoretic (QFT) treatment. We compare these two approaches to neutrino oscillations and discuss the correspondence between them. In particular, we derive expressions for the QM ...

The recent evidence for neutrino oscillations opens a new and exciting era in neutrino physics. The next generation of accelerator based neutrino oscillation experiments are expected to confirm the nature of the oscillations, and begin to measure some of the associated ...

In the past 15 years searches for neutrino oscillations --- a principal avenue to neutrino mass and mixing --- have utilized all available neutrino sources to search wherever it was possible to do so, without significant empirical or theoretical guidance. Recently, tentative, but relatively strong suggestions ...

The deficiency in the experimental measurements [1-5] as compared to the theoretical predictions about the solar neutrino flux made by using the standard solar model [6-8] is called the solar neutrino problem. Attempts to explain all these results by using high or low flux parameters based on standard solar models have not been successful. Wolfenstein ...

A model is given in which neutrino oscillations with two Majorana mass eigenstates are entirely similar to K exp 0 yields anti K exp 0 oscillations: an oscillation amplitude is a maximum one if a mass difference (m sub 1 -m sub 2 ) is much less than m sub...

We study the Berry phase in neutrino oscillations for both Dirac and Majorana neutrinos. In order to have a Berry phase, the neutrino oscillations must occur in a varying medium, the neutrino-background interactions must depend on at least two independent densities, and ...

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 ...

This document describes a neutrino oscillation experiment performed at the Los Alamos Meson Physics Facility. The oscillation mode searched for is /bar /nu///sub mu / -> /bar /nu///sub e/. The first chapter is a review of the known properties of the neutr...

We show that it is possible for neutrino oscillations to create a state of the universe in which the net lepton numbers are appreciable and different for each species at the time of nucleosynthesis. Under these conditions mixing induced by the oscillations can influence the abundances of the light elements.

The effects of neutrino oscillations in nu e scattering processes are considered. Oscillations effectively enhance nu sub( mu )e cross section and suppress nu sub(e)e cross section in the Weinberg-Salam model. Present experimental data do not allow to mak...

A careful study of neutrino scattering physics is an essential part of the program to answer many open questions being addressed by several different physics communities. A deeper understanding of nuclear effects induced by neutrinos and considerably more accurate measurements of neutrino exclusive cross sections is crucial for ...

It is shown that the practicability of the Tl-205 solar neutrino experiment depends in Tl-205 neutrino capture rate, and on the underground in which it is set as a detector for thallium deposit. The neutrino capture rate for the first excited state of Pb-205 was calculated to 214 Standard Neutrino Units (SNUs). The ...

Future cosmological data may be sensitive to the effects of a finite sum of neutrino masses even as small as {approx}0.06 eV, the lower limit guaranteed by neutrino oscillation experiments. We show that a cosmological detection of neutrino mass at that level would improve by many orders of magnitude the existing ...

The Sudbury Neutrino Observatory (SNO) is a second generation solar neutrino detector. SNO is the first experiment that is able to measure both the electron neutrino flux and a flavor-blind flux of all active neutrino types, allowing a model-independent determination if the deficit of solar ...

If dark energy (DE) couples to neutrinos, then there may be apparent violations of Lorentz/CPT invariance in neutrino oscillations. The DE-induced Lorentz/CPT violation takes a specific form that introduces neutrino oscillations that are energy independent, differ for particles and ...

The signatures of sterile neutrinos in the supernova neutrino signal in megaton water Cerenkov detectors are studied. Time dependent modulation of the neutrino signal emerging from the sharp changes in the oscillation probability due to shock waves is shown to be a smoking gun for the existence of sterile ...

Directional sensitive neutrino detectors contributed to astronomy and particle physics. The solar neutrino problem was firmly believed by the directional measurement of solar neutrinos, and the atmospheric neutrino oscillation was confirmed by the zenith angle distribution for two types of ...

The neutrino mixing angle ?13 is currently a high-priority topic in the field of neutrino physics, with three different reactor neutrino experiments under way, searching for neutrino oscillations induced by this angle. A description of the reactor experiments searching for a non-zero value of ...

A method for testing CP invariance in neutrino oscillations is proposed. The method is based on comparing (at some distance from the source) the neutrino and antineutrino fluxes obtained from the decays of K/sub L/ mesons. It is shown that if the difference between the neutrino and antineutrino fluxes is nonzero, ...

The high-statistics neutrino signal from the next nearby supernova (SN) would provide a bonanza of astrophysical and particle-physics information. In particular, there are two new developments in this field: (i) The SASI instability can imprint potentially detectable short time variations on the neutrino signal. (ii) Collective ...

Three sets of proposed neutrino experiments at Fermilab are discussed. The first experiment (E-815) is a continuation of the deep-inelastic scattering program at the Tevatron, performing precise measurements of the weak mixing angle and structure functions. The second (P-860) is a proposal to use the Fermilab Debuncher to search for neutrino ...

The MiniBooNE neutrino oscillation experiment has collected a large sample of charged- and neutral-current neutrino interaction events. These samples are important to understand the normalization and backgrounds in neutrino oscillation searches. They also reveal insight into the structure of ...

Oscillations between active and sterile neutrinos remain as an open possibility to explain some anomalous experimental observations. In a four-neutrino (three active plus one sterile) mixing scheme, we use the Magnus expansion of the evolution operator to study the evolution of neutrino flavor amplitudes within the ...

We have shown that the test of mu -e universality in pi implies e nu sub(e)/ pi implies mu nu sub( mu ) branching ratio, the measurement of solar neutrino fluxes and neutrino oscillations can be used to determine the mixing angles of three massive Dirac n...

Quantum gravity (Planck scale effects) lead to an effective SU(2) L � U(1) invariant dimension-5 Lagrangian involving neutrino and Higgs fields. On symmetry breaking, this operator gives rise to correction to the above masses and mixing. The gravitational interaction M X = M pl , we find that for degenerate neutrino mass spectrum, it is shown that the ...

Oscillations between active and sterile neutrinos remain as an open possibility to explain some experimental observations. In a four-neutrino mixing scheme, we use the Magnus expansion of the evolution operator to study the evolution of neutrino flavor amplitudes within the Earth. We apply this formalism to ...

I would like to introduce the content of my collaboration with Professor Makoto Kobayashi on the subject of ``pseudo-Dirac" scenario with respect to the origin of neutrino masses and its implications for the phenomena of neutrino oscillations. In particular, it was suggested in the work that the large mixings in the leptonic sector is ...

The LSND experiment provides evidence for neutrino oscillations from both the primary {bar {nu}}{sub {mu}} {r_arrow} {bar {nu}}{sub e} oscillation search and the secondary {nu}{sub {mu}} {r_arrow} {nu}{sub e} oscillation search. At present, this remains the only evidence for appearance neutrino ...

We calculate explicitly the effective potentials for different backgrounds which may be helpful in different environments with/without magnetic field. By considering the mixing of three active neutrinos in the medium with the weak magnetic field, we show the survival and conversion probabilities of neutrinos from one flavor to another with the resonance ...

Indications of neutrino oscillation effects in reactor, beam-dump, deep-mine, and solar-neutrino experiments are discussed. Assuming three neutrinos, oscillation probabilities and/or limits are extracted from the data. We present classes of solutions that can explain the observed effects.

The MINOS (Main Injector Neutrino Oscillation Search) experiment has observed muon neutrino disappearance consistent with the oscillation hypothesis tested by Super-Kamiokande and K2K.

Neutrino flavor oscillations can significantly alter the cross section for neutrino-electron scattering. As a result, such oscillations can affect the comparison between existing reactor data and theories of neutral-current processes. They may also lead to strikingly large effects in high-energy accelerator ...

The present status of searches for neutrino oscillations is described at accelerators, reactors and in neutrino sources in the atmosphere. There have been searches for {nu}{sub e} {yields} {nu}{sub {mu}}, {nu}{sub {mu}} {yields} {nu}{sub {tau}}, {nu}{sub {mu}} and {nu}{sub e} disappearance. There are no compelling signals for ...

This work presents an experimental set-up at the Bugey PWR reactor to put into evidence neutrino oscillations. The first part describes a neutrino detector specially designed for the investigation of neutrino oscillations at two distances (13.50 m and 19 ...

Experiment E645 is a search for neutrino oscillations, employing the LAMPF beam stop as a neutrino source. Data collection is now underway, and we describe the experiment, the quality of the preliminary data, and the sensitivity to neutrino oscillations that we expect to reach by the end of the ...

We argue that in order to understand existing data on neutrino oscillations, and to design future experiments, it is imperative to appreciate the role of quantum entanglement. Once this is accounted for, the resulting energy-momentum-conserving phenomenology requires a single new parameter related to disentanglement of a neutrino from ...

We study two-flavor neutrino oscillations in a homogeneous and isotropic ensemble under the influence of neutrino-neutrino interactions. For any density there exist forms of collective oscillations that show self-maintained coherence. They can be classified by a number N of linearly independent functions that ...

We study the matter effects for solar neutrino oscillations in a general scheme, without any constraint on the number of sterile neutrinos and the mixing matrix elements, only assuming a realistic hierarchy of neutrino squared-mass differences in which the smallest squared-mass difference is effective in solar ...

After a brief review of the current neutrino oscillation status, we present neutrino oscillation results for recent and current accelerator-based neutrino experiments including K2K, MiniBooNE and MINOS experiments. We also foreshadow to prospects and status of future various accelerator-based ...