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Relativistic Theory Of Few Body Systems And Their Electromagnetic Interactions
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Book Synopsis Relativistic Theory of Few Body Systems and Their Electromagnetic Interactions by :
Download or read book Relativistic Theory of Few Body Systems and Their Electromagnetic Interactions written by and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent results obtained from the manifestly covariant spectator theory are summarized. A recent unpublished best fit to NN scattering using 13 OBE parameters gives x2=2.25 and a triton binding energy of -8.491 MeV. This agreement is possible because of the existence of off-shell coupling of the phenomenological, intermediate range effective scalar exchanges (both isoscalar and isovector). The previously published results for the deuteron form factors are reviewed, and new, preliminary results for electrodisintegration of the deuteron are presented.
Book Synopsis Lectures on the Theory of Few-body Systems by : Vladimir Borisovich Beli͡aev
Download or read book Lectures on the Theory of Few-body Systems written by Vladimir Borisovich Beli͡aev and published by Springer. This book was released on 1990 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development of a Relativistic Theory of Electromagnetic (EM) Interactions with Few-body Systems by : Walter Glöckle
Download or read book Development of a Relativistic Theory of Electromagnetic (EM) Interactions with Few-body Systems written by Walter Glöckle and published by . This book was released on 1999 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Few Body Systems and Electromagnetic Interactions by : C. Ciofi Degli Atti
Download or read book Few Body Systems and Electromagnetic Interactions written by C. Ciofi Degli Atti and published by Springer. This book was released on 1978 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Claudio Ciofi degli Atti Publisher :Springer Science & Business Media ISBN 13 :3709188970 Total Pages :644 pages Book Rating :4.7/5 (91 download)
Book Synopsis Theoretical and Experimental Investigations of Hadronic Few-Body Systems by : Claudio Ciofi degli Atti
Download or read book Theoretical and Experimental Investigations of Hadronic Few-Body Systems written by Claudio Ciofi degli Atti and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume collects the papers given at the European Workshop "Theoretical and Experimental Investigations of Hadronic Few-Body Systems" which, adhering to an invitation of the European Few-Body Physics Research Committee, was organized in Rome on October 7-11, 1986. All papers presented at the workshop appear in the volume, plus two papers which could not be presented orally because their authors were at the last moment unable to attend. The list of contents closely follows the programme of the workshop. The workshop, attended by 128 American, European, and Japanese physicists from 60 different institutions and universities, was sponsored by the Italian National Institute for Nuclear Physics (lNFN) and was organized by the INFN Section located at the Istituto Superiore di Sanita (ISS), which kindly provided the venue for the meeting and many related facilities. The goal of the workshop was to summarize the present situa tion and the future perspectives concerning the theoretical descriptions of strongly interacting few-body systems and their experimental investigation by electromagnetic and hadronic probes, mainly at intermediate energies. To this end, representatives from most international groups working within different theoretical methods and with different experimental facilities, were invited and asked to illustrate their latest results and future research programs; the intention was to provide, by this way, an impartial and broad information which could be useful to whom is actively working in few body physics, as well as to young students entering this field of research.
Book Synopsis Investigations of the Structure and Electromagnetic Interactions of Few-body Systems by :
Download or read book Investigations of the Structure and Electromagnetic Interactions of Few-body Systems written by and published by . This book was released on 1992 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt: In order to make it easy for the reader to see the specific research carried out and the progress made, the following report of progress is done by topic. Each item has a format layout of Topic, Investigators, Objective, Significance, and Description of Progress, followed at the end by the relevant references. As is clear from the topics listed, the emphasis of the George Washington University (GWU) theory group has been on the structure and electromagnetic interactions of few-body nuclei. Both low- and intermediate-energy electromagnetic disintegration of these nuclei is considered. When the excitation energy of the target nucleus is low, the aim has been to handle the continuum part of the theoretical work numerically with no approximations, that is, by means of full three- or four-body dynamics. When structure questions axe the issue, numerically accurate calculations axe always carried through, limited only by the underlying two-body or three-body interactions used as input. Implicit in our work is the question of how far one can go within the traditional nuclear physics framework, i.e., nucleons and mesons in a nonrelativistic setting. Our central goal is to carry through state-of-the-art fewbody calculations that wig serve as a means of determining at what point standard nuclear physics requires quark degrees of freedom in order to understand the phenomena in question. So far, in the problems considered, there has been no evidence of the necessity to go beyond the traditional approach, though we always keep in mind that possibility. As our work is involved with questions in the intermediate-energy realm, moving from a nonrelativistic framework to a relativistic one is always a consideration. Currently, for the problems that have been pursued in this domain of energy, the issues concern far more the mechanisms of the reactions and structural questions than the need to move to relativistic dynamics.
Book Synopsis Electronuclear Physics With Internal Targets And The Blast Detector: Proceedings Of The Second Workshop by : Ricardo Alarcon
Download or read book Electronuclear Physics With Internal Targets And The Blast Detector: Proceedings Of The Second Workshop written by Ricardo Alarcon and published by World Scientific. This book was released on 1999-07-06 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Second Workshop on Electronuclear Physics with Internal Targets and the Bates Large Acceptance Spectrometer Toroid (BLAST) took place at the Massachusetts Institute of Technology in May 1998. A total of 75 physicists from 26 institutions located in seven countries participated in a lively meeting focused on the unique and important advantages of polarized gas targets internal to an electron storage ring in the study of hadron structure. This meeting has reaffirmed the contributions that BLAST will make in the area of few-body physics.The BLAST detector is designed to measure the spin-dependent electromagnetic response of light nuclei in the momentum transfer range up to 0.8 (GeV/c)2. It will use the 1 GeV longitudinally polarized beam of the Bates South Hall Ring and polarized internal targets. BLAST is scheduled to be completed in 2001.
Book Synopsis Investigations of the Structure and Electromagnetic Interactions of Few-body Systems. Progress Report, 1 July 1992--30 June 1993 by :
Download or read book Investigations of the Structure and Electromagnetic Interactions of Few-body Systems. Progress Report, 1 July 1992--30 June 1993 written by and published by . This book was released on 1993 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt: The emphasis of the nuclear theory group has been on the structure and electromagnetic interactions of few-body nuclei. Both low- and intermediate-energy electromagnetic disintegration of these nuclei is considered, including coherent photoproduction of [pi] mesons. When the excitation energy of the target nucleus is low, the aim is to handle the continuum part of the theoretical work numerically with no approximations, that is, by means of full three- or four-body dynamics. When structure questions are the issue, numerically accurate calculations are always carried through, limited only by the underlying two-body or three-body interactions used as input. A central goal is to carry through state-of-the-art few-body calculations that will serve as a means of determining at what point standard nuclear physics requires introduction of relativity and/or quark degrees of freedom in order to understand the phenomena in question.
Book Synopsis Relativistic Few-Body Hadronic Physics Calculations by :
Download or read book Relativistic Few-Body Hadronic Physics Calculations written by and published by . This book was released on 2016 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: The goal of this research proposal was to use ``few-body'' methods to understand the structure and reactions of systems of interacting hadrons (neutrons, protons, mesons, quarks) over a broad range of energy scales. Realistic mathematical models of few-hadron systems have the advantage that they are sufficiently simple that they can be solved with mathematically controlled errors. These systems are also simple enough that it is possible to perform complete accurate experimental measurements on these systems. Comparison between theory and experiment puts strong constraints on the structure of the models. Even though these systems are ``simple'', both the experiments and computations push the limits of technology. The important property of ``few-body'' systems is that the ``cluster property'' implies that the interactions that appear in few-body systems are identical to the interactions that appear in complicated many-body systems. Of particular interest are models that correctly describe physics at distance scales that are sensitive to the internal structure of the individual nucleons. The Heisenberg uncertainty principle implies that in order to be sensitive to physics on distance scales that are a fraction of the proton or neutron radius, a relativistic treatment of quantum mechanics is necessary. The research supported by this grant involved 30 years of effort devoted to studying all aspects of interacting two and three-body systems. Realistic interactions were used to compute bound states of two- and three-nucleon, and two- and three-quark systems. Scattering observables for these systems were computed for a broad range of energies - from zero energy scattering to few GeV scattering, where experimental evidence of sub-nucleon degrees of freedom is beginning to appear. Benchmark calculations were produced, which when compared with calculations of other groups provided an essential check on these complicated calculations. In addition to computing bound state properties and scattering cross section, we also computed electron scattering cross sections in few-nucleon and few-quark systems, which are sensitive to the electric currents in these systems. We produced the definitive review on article on relativistic quantum mechanics, which and been used by many groups. In addition we developed and tested many computational techniques are used by other groups. Many of these techniques have applications in other areas of physics. The research benefited by collaborations with physicists from many different institutions and countries. It also involved working with seventeen undergraduate and graduate students.
Book Synopsis Investigations of the Structure and Electromagnetic Interactions of Few-body Systems. Progress Report, 1 August 1991--31 July 1992 by :
Download or read book Investigations of the Structure and Electromagnetic Interactions of Few-body Systems. Progress Report, 1 August 1991--31 July 1992 written by and published by . This book was released on 1992 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt: In order to make it easy for the reader to see the specific research carried out and the progress made, the following report of progress is done by topic. Each item has a format layout of Topic, Investigators, Objective, Significance, and Description of Progress, followed at the end by the relevant references. As is clear from the topics listed, the emphasis of the George Washington University (GWU) theory group has been on the structure and electromagnetic interactions of few-body nuclei. Both low- and intermediate-energy electromagnetic disintegration of these nuclei is considered. When the excitation energy of the target nucleus is low, the aim has been to handle the continuum part of the theoretical work numerically with no approximations, that is, by means of full three- or four-body dynamics. When structure questions axe the issue, numerically accurate calculations axe always carried through, limited only by the underlying two-body or three-body interactions used as input. Implicit in our work is the question of how far one can go within the traditional nuclear physics framework, i.e., nucleons and mesons in a nonrelativistic setting. Our central goal is to carry through state-of-the-art fewbody calculations that wig serve as a means of determining at what point standard nuclear physics requires quark degrees of freedom in order to understand the phenomena in question. So far, in the problems considered, there has been no evidence of the necessity to go beyond the traditional approach, though we always keep in mind that possibility. As our work is involved with questions in the intermediate-energy realm, moving from a nonrelativistic framework to a relativistic one is always a consideration. Currently, for the problems that have been pursued in this domain of energy, the issues concern far more the mechanisms of the reactions and structural questions than the need to move to relativistic dynamics.
Book Synopsis Relativity, Symmetry, and the Structure of Quantum Theory, Volume 2 by : William H Klink
Download or read book Relativity, Symmetry, and the Structure of Quantum Theory, Volume 2 written by William H Klink and published by Morgan & Claypool Publishers. This book was released on 2018-03-23 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first version of quantum theory, developed in the mid 1920's, is what is called nonrelativistic quantum theory; it is based on a form of relativity which, in a previous volume, was called Newton relativity. But quickly after this first development, it was realized that, in order to account for high energy phenomena such as particle creation, it was necessary to develop a quantum theory based on Einstein relativity. This in turn led to the development of relativistic quantum field theory, which is an intrinsically many-body theory. But this is not the only possibility for a relativistic quantum theory. In this book we take the point of view of a particle theory, based on the irreducible representations of the Poincare group, the group that expresses the symmetry of Einstein relativity. There are several ways of formulating such a theory; we develop what is called relativistic point form quantum mechanics, which, unlike quantum field theory, deals with a fixed number of particles in a relativistically invariant way. A central issue in any relativistic quantum theory is how to introduce interactions without spoiling relativistic invariance. We show that interactions can be incorporated in a mass operator, in such a way that relativistic invariance is maintained. Surprisingly for a relativistic theory, such a construction allows for instantaneous interactions; in addition, dynamical particle exchange and particle production can be included in a multichannel formulation of the mass operator. For systems of more than two particles, however, straightforward application of such a construction leads to the undesirable property that clusters of widely separated particles continue to interact with one another, even if the interactions between the individual particles are of short range. A significant part of this volume deals with the solution of this problem. Since relativistic quantum mechanics is not as well-known as relativistic quantum field theory, a chapter is devoted to applications of point form quantum mechanics to nuclear physics; in particular we show how constituent quark models can be used to derive electromagnetic and other properties of hadrons.
Book Synopsis Investigations of the Structure and Electromagnetic Interactions of Few-body Systems. Progress Report, 1 July 1991--30 June 1994 by :
Download or read book Investigations of the Structure and Electromagnetic Interactions of Few-body Systems. Progress Report, 1 July 1991--30 June 1994 written by and published by . This book was released on 1994 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt: In order to make it easy for the reader to see the specific research carried out and the progress made, the following report of progress is done by topic. Each item has a format layout of Topic, Investigators, Objective, Significance, and Description of Progress, followed at the end by the relevant references. As is clear from the topics listed, the emphasis of the GW nuclear theory group has been on the structure and electromagnetic interactions of few-body nuclei. Both low- and intermediate-energy electromagnetic disintegration of these nuclei is considered, including coherent photoproduction of [pi] mesons. When the excitation energy of the target nucleus is low, the aim has been to handle the continuum part of the theoretical work numerically with no approximations, that is, by means of full three- or four-body dynamics. When structure questions are the issue, numerically accurate calculations are always carried through, limited only by the underlying two-body or three-body interactions used as input. Implicit in our work is the question of how far one can go within the traditional nuclear physics framework i.e., nucleons and mesons in a nonrelativistic setting. Our central goal is to carry through state-of-the-art few-body calculations that will serve as a means of determining at what point standard nuclear physics requires introduction of relativity and/or quark degrees of freedom in order to understand the phenomena in question. So far, the problems considered were mostly concerned with low- to medium-energy regimes where little evidence was found that requires going beyond the traditional approach.
Book Synopsis Few-Body Problems in Physics ’95 by : Rafael Guardiola
Download or read book Few-Body Problems in Physics ’95 written by Rafael Guardiola and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 555 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the XVth European Conference on Few-Body Problems in Physics, Peniscola (Castellon), Spain, June, 5 - 9, 1995
Book Synopsis Relativistic Description of Few Body Systems by :
Download or read book Relativistic Description of Few Body Systems written by and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In this talk, I will discuss how relativistic meson theory is developed and applied to the electromagnetic description of the two nuclei system. These techniques are being extended to the three body system and very similar methods have been applied to nuclear matter, but I will not review this work here.
Book Synopsis Relativistic Effects in the Atomic and Nuclear Few-body Problems by :
Download or read book Relativistic Effects in the Atomic and Nuclear Few-body Problems written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Relativistic effects in the atomic and nuclear few-body systems are classified and discussed with the emphasis on electromagnetic transitions. The size of relativistic corrections, calculational techniques and ambiguities, and comparison of theory and experiment are considered. 8 figures.
Book Synopsis Few-Body Problems in Particle, Nuclear, Atomic, and Molecular Physics by : Jean-Louis Ballot
Download or read book Few-Body Problems in Particle, Nuclear, Atomic, and Molecular Physics written by Jean-Louis Ballot and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 601 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 1987 Fontevraud Conference gathered more than 100 physicists for the purpose of discussing the latest developments of research on few-body problems. In addition to participants from most European countries representatives from Brazil, Canada, Israel, Japan, South Africa, and the USA took part in the meeting. In the conference program special emphasis was laid on bringing together the various fields, where few-body problems play an important role. Beyond the traditional areas of nuclear and particle physics, in recent years interest has been focussed especially on atomic and molecular physics. This developent is due to the design of new techniques for solving few-body problems under rather general premises. The proceedings contain all plenary talks and the contributions presented orally at the conference. They cover such topics as: few-quark systems and short-range phenomena, two- and three-body forces in quark as well as nucleonic systems, few-hadron bound states, response of few-body systems to electromagnetic and hadronic probes, form factors, hypernuclei, atomic and molecular few-body systems, hyperspherical method, separable expansions, numerical techniques, etc. It appears that recently, even in one year after the Tokyo-Sendai Conference, much progress has been achieved in research on various few-body systems. The present volume gives a comprehensive summary of the modern state of the art and at the same time a proper account of the most recent results obtained in the different institutions and laboratories.
Book Synopsis Postdoctoral Research Associateships by :
Download or read book Postdoctoral Research Associateships written by and published by . This book was released on 1983 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
