... Title : HIGH-ENERGY PHYSICS. ... FIELD THEORY, PARTICLE ACCELERATORS, ELEMENTARY PARTICLES, NUCLEAR ...
DTIC Science & Technology
accelerator science, and a source of many innovative concepts, within the Accelerator and Fusion Research Division. We have core expertise in accelerator physics and theory,...
Science.gov Websites
... Descriptors : *NUCLEAR PHYSICS, *PARTICLES, ACCELERATION, BEVATRONS, COSMIC RAYS, DEGRADATION, ENERGY, THEORY. ...
The high energy accelerators are proven to be a very useful tool not only for high energy physics, but also for the whole field of physics as well as other scientific fields. Possible accelerators both for electron or positron and proton accelerator schemes are discussed, and rudimentary ...
DOE Information Bridge
Experimenting with plasticine Hugh Fricker Confusion over the physics of circular motion J K Atkin Theories of acceleration Glen Thomas Reply to J K Atkin and correction Yasin �nsal
NASA Astrophysics Data System (ADS)
These proceedings address numerous topics in high energy physics, including social impact; experiment planning, and accelerator design and operation; testing of current theories; lepton physics; supersymmetry; field theories and particle models; invariance principles and conservation laws; ...
Energy Citations Database
... Accelerators Extra Dimensions New Theories of Light and ... Beyond Einstein: From the Big Bang to Black ... and outreach programs, theory, or scientific ...
We describe a natural particle physics basis for late-time phase ... In a few remarkable instances, modern particle physics theory has predicted the ex- ...
NASA Website
Xenon Observatory (EXO) FGST JDEM Laser Acceleration (E163) LCD/SiD @ ILC LSST Plasma Wakefield (E157/E162/E164) Theory Theoretical Physics Website Archive Computing PPA...
Modern data are showing increasing evidence that the Universe is accelerating. So far, all attempts to account for the acceleration have required some fundamental dimensionless quantities to be extremely small. We show how a class of scalar field models (which may emerge naturally from superstring theory) can account for ...
Plasma-based accelerators have the ability to sustain extremely large accelerating gradients, with possible high-energy physics applications. This dissertation further develops the theory of plasma-based accelerators by addressing three topics: the performance of a hollow plasma channel as an ...
This paper discusses: accelerator physics and special projects; experiments and injectors; magnetic optics and beam diagnostics; accelerator design and engineering; radio-frequency technology; accelerator theory and simulation; free-electron laser technology; accelerator ...
We have studied the physics of the relative state of quantum detectors that move with respect to each other and their sources, that are accelerated with respect to the source, and that are placed within the gravitational field of a black hole. We outline ...
National Technical Information Service (NTIS)
This book addresses the following subjects: nuclear properties and structure; Nuclear collisions and reactions; Exotic atoms; Kinematics and scattering theory; and Particle accelerators.
... in a nozzle expansion and in a crossed field accelerator, to be pre- sented at the March, 1963, ARS Electric Propulsion meeting.8 The theory has ...
Studies dealing with particle physics, plasma physics, and discharges are presented. Applications described include plasma cluster acceleration, materials processing, and contributions to the theory of the development of solar flares. Several papers discu...
Present understanding of accelerator optics is based mainly on classical mechanics and electrodynamics. In recent years quantum theory of charged-particle beam optics has been under development. In this paper the newly developed formalism is outlined.
E-print Network
PubMed
A uniformly accelerating observer perceives the Minkowski vacuum state as a thermal bath of radiation. We point out that this field-theory effect can be derived, for any dimension higher than two, without actually invoking very high energy physics. This supports the view that this phenomenon is robust against Planck-scale ...
The book includes theoretical discussions of scaling, the renormalization group, the standard model that encompasses the electroweak theory and quantum chromodynamics, and grand unified theories including supersymmetry, superstrings, and the family problem. Articles focus on tests of the standard model, underground experiments, and ...
We formulate a general relativistic mean field theory for rotating nuclei starting from the special relativistic {sigma}-{omega} model Lagrangian. The tetrad formalism is adopted to generalize the model to the accelerated frame. {copyright} {ital 1997} {ital The American Physical Society}
Picture Gallery New Faces PHY Webmail Meeting Rooms Research Low Energy Medium Energy Theory Accelerator R&D Research Highlights Seminars & Events Colloquium Division Seminar MEP...
Spin physics in the past has provided an acid test of many models and theories and over the last decade has revealed new and unexpected phenomena to confront present day theories. This work received great impetus from the experiments at the ZGS, where for...
The classical vacuum of physics is not empty, but contains a distinctive pattern of electromagnetic fields. Discovery of the vacuum, thermal spectrum, classical electron theory, zero-point spectrum, and effects of acceleration are discussed. Connection between thermal radiation and the classical vacuum reveals unexpected unity in the ...
ERIC Educational Resources Information Center
Research activities are briefly reported. Topics include grand unified models, gluonic bound states, radiative decays of quarkonium, composite quarks and leptons, supersymmetry, magnetic monopoles in grand unified theories, and accelerator physics. (WHK)
This report discusses research at the LAMPF accelerator in the following areas: Nuclear and particle physics; astrophysics; atomic and molecular physics; materials science; radiation effects; radioisotope production; theory; facility development; accelera...
This paper presents work performed on the generation and physics of acoustic waves in the solar atmosphere. The investigators have incorporated spatial and temporal turbulent energy spectra in a newly corrected version of the Lighthill-Stein theory of aco...
This report highlights the research performed in 2002 in the Physics Division of Argonne National Laboratory. The Division's programs include operation of ATLAS as a national user facility, nuclear structure and reaction research, nuclear theory, medium energy nuclear research and accelerator research and development.
This report highlights the research performed in 2003 in the Physics Division of Argonne National Laboratory. The Division's programs include operation of ATLAS as a national user facility, nuclear structure and reaction research, nuclear theory, medium energy nuclear research and accelerator research and development.
This paper presents an attempt at establishing a model theory for the dense plasma focus in order to present a consistent interpretation of the basic physical phenomena leading to neutron production from both acceleration and thermal processes. To achieve...
... Accession Number : AD0637068. Title : THEORY AND DESIGN OF LINEAR ACCELERATORS: COLLECTION OF ARTICLES. ...
The volume presents a program of research initiatives in atomic, molecular, and optical physics. The current state of atomic, molecular, and optical physics in the US is examined with respect to demographics, education patterns, applications, and the US economy. Recommendations are made for each field, with discussions of their histories and the relevance ...
Topics covered include: Super HILAC and Bevalac operations; high intensity uranium beams line item; advanced high charge state ion source; 184-inch synchrocyclotron; VENUS project; positron-electron project; high field superconducting accelerator magnets; beam cooling; accelerator theory; induction linac drivers; RF linacs and storage ...
Hadron Collider Physics: Present and Future Chris Quigg Theoretical Physics Department Fermi the accelerator to mere Earth size (R = 6.4 � 103 km). Pheno '99 C. Quigg, "Hadron Collider Physics" 2 #12;Fermi at http://www-theory.fnal.gov/. Pheno '99 C. Quigg, "Hadron Collider ...
... Accelerator. A New Experiment in the Physics of Elementary Particles,. Corporate ... Subject Categories : PARTICLE ACCELERATORS. ...
This report contains lecture notes on beam dynamics and acceleration concepts in particle accelerators. (LSP)
... Descriptors : *ELECTRON ACCELERATORS, *SOLIDS, DESIGN, LINEAR ACCELERATORS, MEASUREMENT, PHYSICAL PROPERTIES. ...
The Maryland Transport Experiment employs a beam of low energy electrons to study, on a scaled basis, the nonlinear physics of space-charge-dominated transport which is important to a range of accelerator systems. Several series of experiments are discussed, which have investigated significant aspects of both the transverse and longitudinal ...
It is suggested that quantum mechanics is not fundamental but emerges from classical information theory applied to causal horizons. The path integral quantization and quantum randomness can be derived by considering information loss of fields or particles crossing Rindler horizons for accelerating observers. This implies that information is one of the ...
This report contains viewgraph material on the following topics: on beam emittance -- application to ATF; a review of Brookhaven Accelerator Test Facility (AFT); on development of a superconducting RFQ at Stony Brook University; development of new methods for charged particle acceleration at Yerevan Physics Institute; ...
It is argued that all notions associated with the origin of life should be related with the participatory anthropic principle of Wheeler and must be extended into the realm of the multiverse. Also discussed is the notion that life can only be possible in a given universe during a finite period along which such a universe expands in an accelerated fashion. We advance finally ...
... Descriptors : *PARTICLE ACCELERATORS, *PLASMAS(PHYSICS), *BETATRONS, BETATRONS, PLASMAS(PHYSICS), INSTRUMENTATION ...
The accelerating expansion of the universe presents an exciting, fundamental challenge to the standard models of particle physics and cosmology. I highlight some of the outstanding challenges in both developing theoretical models and interpreting without bias the observational results from precision cosmology experiments in the next decade that will return ...
The authors discuss the present status, expected effort during the remainder of the project, and some of the results of their activities since the beginning of the project. Some of the areas covered are: (1) effects of helical insertial devices on beam dynamics; (2) coupling impedance of apertures in accelerator beam pipes; (3) new calculation of diffusion rate; (4) integrable ...
In his article ``A turning point in auroral physics,'' Bryant argued against what he called the `standard' theory of auroral acceleration, according to which the electrons ``gain their energy from static electric fields,'' and offered wave acceleration as an alternative. Because of the importance of the process, ...
This report briefly discusses the following topics on accelerator physics: breakup of KAM tori in Hamiltonian systems with three degrees of freedom; period m-typing in Hamiltonian systems with two degrees of freedom; beam-beam interaction and pacman effect; correction schemes of nonlinear effects; systematic treatment of isolated nonlinear resonances; ...
The author's assignment at this conference is to assess where the authors are in high-energy physics and speculate on where the authors might be going. This frees him from any obligation to summarize all that went on here and allows him to talk just about those topics that interest him the most at this time. He will lets his prejudices show and talks a bit about ...
Page 1. Acceleration Sets of Planar Manipulators NPart I: Theory ... acceleration is not clear. 14 Page 19. 4 Determination of the acceleration sets ...
The European School of High-Energy Physics is intended to give young experimental physicists an introduction to the theoretical aspects of recent advances in elementary particle physics. These proceedings contain lectures on quantum field theory, quantum chromodynamics, CP violation, radiative corrections, cosmology, particle detectors ...
This report highlights the activities of the Physics Division of Argonne National Laboratory in 2006. The Division's programs include the operation as a national user facility of ATLAS, the Argonne Tandem Linear Accelerator System, research in nuclear structure and reactions, nuclear astrophysics, nuclear theory, ...
Brian Anderson - Acceleration region still needs work in the coupling between ... Theory/model and observation closure demonstrates a sophistication of our .... How do physical processes and regions couple over the hierarchy of scales? ...
Results of research work carried out at the ZfK Rossendorf in 1980 are presented in individual summaries covering the following topics: nuclear reactions, nuclear spectroscopy, nuclear theory, applied methods of nuclear physics, accelerators, nuclear elec...
Results of research work carried out at the ZfK Rossendorf in 1979 are presented in individual summaries covering the following topics: nuclear reactions, nuclear spectroscopy, nuclear theory, applied methods of nuclear physics, accelerators, nuclear elec...
Discusses the search for fundamental particles and fields of which all matter consists and the search for a unified theory of the forces with which these particles and fields interact. Topic areas include relativity and quantum mechanics, high energy accelerators, particle interactions at high energy, substructure, electromagnetic interactions, and others. ...
Recent progress in the understanding of beam physics and technology factors determining the current and brightness of ion and electron beams in linear accelerators will be reviewed. Topics to be discussed including phase-space density constraints of parti...
This paper briefly discusses progress at Argonne National Laboratory in the following areas: Experimental Program; Theory Program; Experimental Facilities Research; Accelerator Research and Development; and SSC Detector Research and Development.
This paper briefly discusses progress at Argonne National Laboratory in the following areas: Experimental Program; Theory Program; Experimental Facilities Research; Accelerator Research and Development; and SSC Detector Research and Development. (ERA cita...
Within the framework of accelerator physics beam dynamics modelling, this paper discusses a generalized Courant-Snyder theory for n-dimensional quadratic Hamiltonians. It stresses the usefulness of the obtained results both for transverse mode coupling in...
The first collider tests of cosmological theory are now underway. The number of neutrino families in nature, N/sub nu/, plays a key role in elementary particle physics as well as in the synthesis of the light elements during the early evolution of the Uni...
), developing theory of high energy physics [2] and a lot of phenomenologic models are tested by the process of accelerators. We have stopped on the studing MP in e + e - annihilation at high energy. At accordance to be insensitive to details of the hadronization mechanism. They can be tested directly by using hadron
with an eternal accelerated expansion of the universe. We have shown that if we postulate that the speed of light, String Theory and a Varying Speed of Light J. W. Moffat Department of Physics, University of Toronto shall explore the idea that a varying light speed in the future universe can remove future horizons from
This report contains papers on the following topics: Physics of high brightness beams; radio frequency beam conditioner for fast-wave free-electron generators of coherent radiation; wake-field and space-charge effects on high brightness beams. Calculations and measured results for BNL-ATF; non-linear orbit theory and accelerator ...
Produced by the University of Missouri - St. Louis, this website is an educational "resource for solving low and high speed constant acceleration problems." Physics students can find quantitative tools to handle time dilation, relativist acceleration, and curved space-time. Containing networks of numerous concepts dealing with ...
NSDL National Science Digital Library
Recent results of accelerator neutrino experiments are reviewed with emphasis on facilities and instrumentations. The progress in neutrino physics in last two decades has been made possible in large part by large underground facilities, which were motivated for the experimental search of phenomena associated with Grand Unified ...
A fully self-consistent theory of ferromagnetic waveguide accelerators driven by a relativistic electron beam is developed. The theoretical analysis is based on Faraday's law, which provides a second-order partial-differential equation of the azimuthal magnetic field, under the assumption that [mu][epsilon][much gt]1. Here [mu] and [epsilon] are ...
Review of the theory of focusing in linear accelerators with comments on the incompatibility of phase stability and first-order focusing in a simple accelerator.
DOE R&D Accomplishments Database
This report briefly discusses the following topics: The Ground Test Accelerator Program; Defense Free-Electron Lasers; AXY Programs; A Next Generation High-Power Neutron-Scattering Facility; JAERI OMEGA Project and Intense Neutron Sources for Materials Testing; Advanced Free-Electron Laser Initiative; Superconducting Supercollider; The High-Power Microwave (HPM) Program; ...
It was demonstrated recently in Bychkov et al. [Bychkov et al., Phys. Rev. Lett. 101 (2008) 164501], that the physical mechanism of flame acceleration in channels with obstacles is qualitatively different from the classical Shelkin mechanism. The new mechanism is much stronger, and is independent of the Reynolds number. The present study provides details ...
This learning resources comprise a healthy introduction to the physics of beams. The site, from the American Physical Society and Michigan State University's Beam Theory and Dynamical Systems Group, contains a brochure providing a basic introduction to the study of beams and their applications. Sections include ...
Activities at LAMPF during the year of 1986 are summarized, including brief summaries of experiments in nuclear and particle physics, atomic and molecular physics, materials science, radiation-effects studies, biomedical research and instrumentation, nuclear chemistry, radioisotope production, and theory. The status of an advanced ...
Research on neutron fission physics, high resolution studies, gamma ray spectroscopy, radiative capture reactions, atomic physics, heavy ion physics, accelerator development and instrumentation, computer related development and instrumentation, computer-related development, and nuclear theory ...
Research performed at LAMPF during 1985 is reported in the areas of: nuclear and particle physics; atomic and molecular physics; materials science; radiation-effects studies; biomedical research and instrumentation; nuclear chemistry; radioisotope production; and physics theory. Also reported are the status of ...
A brief summary of the talks on accelerator physics presented at this conference, Intersections Between Particle and Nuclear Physics , is given. New accelerator facilities and technologies, beam cooling, and the experiments were part of these discussions.
I describe the future accelerator facilities that are currently foreseen for electroweak scale physics, neutrino physics, and nuclear structure. I will explore the physics justification for these machines, and suggest how the case for future accelerators can be made.
At the low energy end of an induction linac HIF driver the beam current is limited by our ability to control space charge by a focusing system. As a consequence, HIF induction accelerator designs feature simultaneous acceleration of many beams in parallel within a single accelerator structure. As the speed of the beams increase, the ...
This report discusses: beam-beam interaction and pacman effects in the SSC with momentum oscillation; Two-parameter sorting of dipoles in large synchrotrons; self-consistent treatment of space charge effects in low energy synchrotrons; new acceleration scheme in RFQ; low beam transport helical electrostatic quadrupole; improved beam dynamics treatment for compact synchrotrons; ...
of matter and the forces between subatomic particles. They conduct experiments at SLAC and other facilities than antimatter. Elementary Particle Theory SLAC theorists work on virtually all areas of high and nutrients are transported through the soil, water and air. X-ray Spectroscopy Chemical processes
Future Accelerators, was created to facilitate international collaboration in the construction and use of accelerators for high energy physics. It was created in 1976 by the...
High energy physics, perhaps more than any other branch of science, is driven by technology. It is not the development of theory, or consideration of what measurements to make, which are the driving elements in our science. Rather it is the development of new technology which is the pacing item. Thus it is the development of new techniques, new computers, ...
The general subject of tests of the standard model and searches for physics beyond the standard model in low energy processes are reviewed. By standard model, the author means the product of gauge groups SU(3)/sub c/ x SU(2) x U(1) corresponding to Quantum Chromodynamics for strong interactions and the Glashow-Salam-Weinberg model for electroweak interactions. Going beyond the ...
This report discusses the analysis and design of rf cavities and rf power sources in accelerators. (LSP).
The fundamental theory of the interaction of intense, low-frequency electromagnetic fields with certain radioactive nuclei has been fully formulated. The nuclei are of the type that exists in high-level radioactive wastes that are end products of the production of energy from nuclear fission. The basic physical mechanisms that underlie the coupling of the ...
The acceleration of the expansion of the universe arises from unknown physical processes involving either new fields in high energy physics or modifications of gravitation theory. It is crucial for our understanding to characterize the properties of the dark energy or gravity through cosmological observations and ...
The Planck spectrum of thermal scalar radiation is derived suggestively within classical physics by the use of an accelerating coordinate frame. The derivation has an analogue in Boltzmann's derivation of the Maxwell velocity distribution for thermal particle velocities by considering the thermal equilibrium of noninteracting particles in a ...
This report covers major projects in the Accelerator Technology (AT) Division of the Los Alamos National Laboratory. The first sections highlight activities related to beam dynamics, inertial fusion, structure development, the racetrack microtron, and the CERN high-energy physics experiment NA-12. Discussed next is the Fusion Materials Irradiation Test ...
The SL9 impacts provided a unique data set with which to examine some surprising physical mechanisms at work. This paper examines some of the data in light of the collisionless shock acceleration paradigm, called diffusive shock acceleration. The research finds that both the shock acceleration mechanism and an ...
Highlights in beam dynamics, accelerator inertial fusion, radio frequency structure development, the racetrack microtron, CERN high energy physics experiment NA-12, and high flux radiographic linac study are reported. Selected proton Storage Ring activities and an update on the free electron laser are discussed. The fusion materials irradiation test ...
... Accession Number : ADD341602. Title : Accelerated Physical Modelling Of Radioactive Waste Migration In Soil,. Corporate Author : ...
... Descriptors : (*Physics, Reviews), Astrophysics, Biophysics, Nuclear physics, Plasmas(Physics), Relativity theory, Geophysics, Physical chemistry ...
... Title : HIGH ENERGY PHYSICS. ... ALGEBRA, ELEMENTARY PARTICLES, FIELD THEORY. ... PHYSICS & ELEMENTARY PARTICLE PHYSICS. ...
Project Title: Magnetohydrodynamic Particle Acceleration Processes: SSX Experiments, Theory, and Astrophysical Applications PI: Michael R. Brown, Swarthmore College The purpose of the project was to provide theoretical and modeling support to the Swarthmore Spheromak Experiment (SSX). Accordingly, the theoretical effort was tightly integrated into ...
The profound discovery of Einstein a century ago, that particles can both be made from energy and disappear back into energy, inspires the experiments that provide our knowledge of the smallest building blocks of matter and the interactions among them. Experiments, done at enormous accelerators, have led to a consistent theory of the origins of our world ...
The focused transport equation (FTE) includes all the necessary physics for modeling the shock acceleration of energetic particles with a unified description of first-order Fermi acceleration, shock drift acceleration, and shock surfing acceleration. It can treat the ...
Describes the use of analogy relative to the classical theory of momentum and kinetic energy, and addresses the advantages and disadvantages of this approach with respect to modern physics. Discusses the origins of the billiard ball analogy in the work of Coriolis and its influence on later theories and investigations of nuclear ...