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Author : K. Von Reden
Publisher :
ISBN 13 :
Total Pages : 25 pages
Book Rating : 4.:/5 (36 download)
Download or read book Quasi-elastic Electron Scattering and Coulomb Sum Rule in 4He written by K. Von Reden and published by . This book was released on 1989 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 16 pages
Book Rating : 4.:/5 (946 download)
Download or read book Quasielastic (e, E') Sum Rule Saturation written by and published by . This book was released on 1989 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: A microscopic Green's function doorway formalism is used to study Coulomb sum rule saturation in inclusive quasielastic electron scattering as a function of momentum transfer. Form factor, kinematical restriction, and final-state interaction effects on the approach to saturation are examined in detail, as are the roles of nonhermiticity, energy dependence, and the analytic behavior of the final-state interactions. The implications of relativistic kinematics and dynamics for the approach to saturation at not-too-high values of the momentum transfer are assessed. Because the pair production of relativistic treatments destroys the asymptotic nature of the nonrelativistic Coulomb sum rule, the degree to which a regime of validity can be expected for this sum rule, and its location, is considered. The breakdown of the sum rule as the momentum transfer increases is also examined. Similar theoretical studies of an analogous nonrelativistic transverse sum in its saturation region are developed as well. Theoretical predictions are compared with the experimental data for 4°Ca both directly and using a variety of theoretical prescriptions and limits. Neutron knockout contributions and associated uncertainties due to ambiguity in the free neutron form factors are examined.
Author : Huan Yao
Publisher :
ISBN 13 :
Total Pages : 169 pages
Book Rating : 4.:/5 (128 download)
Download or read book Precision Measurement of Longitudinal and Transverse Response Functions of Quasi-Elastic Electron Scattering in the Momentum Transfer Range 0.55 GeV /c ≤ |q| ≤ 1.0 GeV /c written by Huan Yao and published by . This book was released on 2012 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coulomb Sum Rule states that the integration of the longitudinal response of a nucleus over the range of energy excitation dominated by quasi-elastic proton knock-out process should be equal to the total number of protons in the nucleus. The test of Coulomb Sum Rule will shed light on the question of whether or not the properties of nucleon are modified in the nuclear medium. In order to test the Coulomb Sum Rule in nuclei, a precision measurement of inclusive electron scattering cross sections in the quasi-elastic region was performed at Jefferson Lab. Incident electrons with energies ranging from 0.4 GeV to 4 GeV scattered from 4He, 12C, 56Fe and 208Pb nuclei at four scattering angles ( 15°, 60°, 90°, 120°) and scattered energies ranging from 0.1 GeV to 4 GeV. The Rosenbluth method with proper coulomb corrections is used to extract the transverse and longitudinal response functions at three-momentum transfers in the range 0.55 GeV/c ≤ |q| ≤ 1.0 GeV/c. The Coulomb Sum Rule is determined in the same |q| range and compared to predictions. This work is supported by the Department Of Energy through grant DE-FG02-94ER40844.
Author : Herbert Uberall
Publisher : Elsevier
ISBN 13 : 0323151248
Total Pages : 416 pages
Book Rating : 4.3/5 (231 download)
Download or read book Electron Scattering From Complex Nuclei V36B written by Herbert Uberall and published by Elsevier. This book was released on 2012-12-02 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electron Scattering from Complex Nuclei, Part B is a three-chapter text that explores the excitation of the nucleus to bound levels and the nucleus breakup through particle emission from continuum states. The first chapter discusses the inelastic scattering to nuclear levels, the giant resonances, the concepts of radiative corrections, and the phase shift analysis for inelastic scattering. The subsequent chapter concerns the quasi-elastic continuum and the observations of the nuclear decay products. The last chapter presents special topics on electron scattering, such as dispersion and exchange corrections, sum rules, and isospin effects. Physicists, researchers, and graduate students will find this book invaluable.
Author :
Publisher :
ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.:/5 (727 download)
Download or read book Models for Relativistic Coulomb Sum Rules written by and published by . This book was released on 1989 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Relativistic Coulomb sum rules for quasielastic electron scattering from nuclei are developed using a class of relativistic models for the nuclear ground-state momentum distribution. Approximate sum rules at constant 3- or 4-momentum transfer are expressed as expansions in moments of the momentum distribution. New sum-rule functions are derived which, even for very large values of energy and momentum where relativistic effects become dominant, approach simple asymptotic values; in doing so they approximately retain the flavor of the nonrelativistic Coulomb sum rule which approaches Z. Specific ways of achieving an optimum separation of effects relating to the electromagnetic response of a single nucleon and of a many-body system of structureless particles are discussed, including a study of sensitivities to alternative parameterizations of GEn. Comparisons of results using different momentum distributions for the case of 16O are presented.
Author : Bernard Frois
Publisher : World Scientific
ISBN 13 : 9789971509750
Total Pages : 832 pages
Book Rating : 4.5/5 (97 download)
Download or read book Modern Topics in Electron Scattering written by Bernard Frois and published by World Scientific. This book was released on 1991 with total page 832 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book summarizes the considerable progress recently achieved in the understanding of nucleon and nuclear structure by using high energy electrons as a probe. A collection of papers discusses in detail the new frontiers of this field. Experimental and theoretical articles cover topics such as the structure of the nucleon, nucleon distributions, many-body correlations, non-nucleonic degrees of freedom and few-body systems. This book is an up-to-date introduction to the research planned with continuous beam electron accelerators.
Author :
Publisher :
ISBN 13 :
Total Pages : 744 pages
Book Rating : 4.3/5 (91 download)
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1975 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Hamza Atac
Publisher :
ISBN 13 :
Total Pages : 184 pages
Book Rating : 4.:/5 (128 download)
Download or read book PRECISION MEASUREMENT OF QUASI-ELASTIC TRANSVERSE AND LONGITUDINAL RESPONSE FUNCTIONS IN THE RANGE 0.55 GeV/cj written by Hamza Atac and published by . This book was released on 2017 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Coulomb Sum is defined by the quasi-elastic nucleon knock-out process and it is the integration of the longitudinal response function over the energy loss of the incident electron. The Coulomb sum goes to the total charge at large q. The existing measurements of the Coulomb Sum Rule show disagreement with the theoretical calculations for the medium and heavy nuclei. To find the reason behind the disagreement might answer the question of whether the properties of the nucleons are affected by the nuclear medium or not. In order to determine the Coulomb Sum in nuclei, a precision measurement of inclusive electron scattering in the quasi-elastic region was performed at the Thomas Jefferson National Accelerator Facility. Incident electrons with energies ranging from 0:4 GeV to 4 GeV scattered off 4He,12C,56Fe and 208Pb nuclei at four scattering angles (15;60;90;120) and scattered energies ranging from 0:1 GeV to 4 GeV. The Born cross sections were extracted for the Left High Resolution Spectrometer (LHRS) and the Right High Resolution Spectrometer 56Fe data. The Rosenbluth separation was performed to extract the transverse and longitudinal response functions at 650 MeV three-momentum transfer. The preliminary results of the longitudinal and transverse functions were extracted for 56Fe target at 650 MeV three-momentum transfer.
Author : Aron Myron Bernstein
Publisher :
ISBN 13 :
Total Pages : 13 pages
Book Rating : 4.:/5 (36 download)
Download or read book Quasi-elastic Electron Scattering from 2, 3H and 3, 4He written by Aron Myron Bernstein and published by . This book was released on 1987 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 6 pages
Book Rating : 4.:/5 (727 download)
Download or read book Coulomb Effects in Quasielastic Electron Scattering written by and published by . This book was released on 1991 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coulomb distortion plays an important role in interpreting both (e, e(prime)) and (e, e, (prime)p) reactions in the quasielastic region. A fully distorted partial wave calculation is presented, and the results are compared with the widely-used plane wave approximation and other distorted-wave calculations. The new calculation seems to give higher occupation numbers in the (e, e(prime)p) reactions. The usefulness of the (e, e(prime)p) reaction in studying different nuclear optical potentials is discussed. Also considered are the effects of electron Coulomb distortion in the separation of longitudinal and transverse structure functions in (e.e(prime)).
Author : Charles J. Horowitz
Publisher : Springer Science & Business Media
ISBN 13 : 1461307694
Total Pages : 450 pages
Book Rating : 4.4/5 (613 download)
Download or read book Spin Observables of Nuclear Probes written by Charles J. Horowitz and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: The proceedings of the "International Conference on Spin Observables of Nuclear Probes" are presented in this volume. This conference was held in Telluride, Colorado, March 14-17, 1988, and was the fourth in the Telluride series of nuclear physics conferences. A continuing theme in the Telluride conference series has been the complementarity of various intermediate-energy projectiles for elucidating the nucleon-nucleon interaction and nuclear structure. Earlier conferences have contributed significantly to an understanding of spin currents in nuclei, in particular the distribution of Gamow-Teller strength using charge-exchange reactions. The previous conference on "Antinucleon and Nucleon Nucleus Interactions" compared nuclear information from tra tional probes to recent results from antinucleon reactions. The 1988 conference on Spin Observables of Nuclear Probes, put special emphasis on spin observables and brought together experts using spin information to probe nuclear structure. Spin observables have provided very detailed information about nuclear structure and reactions. Since the 1985 Telluride conference we have seen data from new focal plane polarimeters at LAMPF, TRIUMF, IUCF and elsewhere. In addition, spin observables provide an important common ground between electron and hadron scattering physics. In the future we look forward to new facilities such as NTOF for polarized neutron measurements at Los Alamos and a vigorous spin program at CEBAF.
Author : Olaf Scholten
Publisher : World Scientific
ISBN 13 : 9814556475
Total Pages : 374 pages
Book Rating : 4.8/5 (145 download)
Download or read book Structure Of Hadrons And Hadronic Matter: International Summer School written by Olaf Scholten and published by World Scientific. This book was released on 1991-07-22 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is an introductory textbook on amorphous magnets for students and scientists in physics and materials science. Basic physical arguments are given and experimental data are systematically collected and discussed. The book deals mostly with the qualitative and semiquantitative aspects of materials that can be deduced, in a relatively simple way, from the fundamental equations of solid state physics.
Author : M.P. Nightingale
Publisher : Springer Science & Business Media
ISBN 13 : 9780792355526
Total Pages : 486 pages
Book Rating : 4.3/5 (555 download)
Download or read book Quantum Monte Carlo Methods in Physics and Chemistry written by M.P. Nightingale and published by Springer Science & Business Media. This book was released on 1998-12-31 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains lectures on the basic theory and applications of quantum Monte Carlo methods, with contributions written by authorities in the field. Although tutorial in nature, it includes current developments. Both continuum systems and lattice models are covered. The applications include atomic, molecular, and solid state physics, statistical and low-temperature physics, and nuclear structure. Suitable for Ph.D. students and beyond.
Author :
Publisher :
ISBN 13 :
Total Pages : 1010 pages
Book Rating : 4.:/5 (319 download)
Download or read book Energy Research Abstracts written by and published by . This book was released on 1990 with total page 1010 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 372 pages
Book Rating : 4.:/5 (33 download)
Download or read book Ėlektromagnitnye Vzaimodeĭstvii︠a︡ I︠a︡der Pri Malykh i Srednikh Ėnergii︠a︡kh written by and published by . This book was released on 1979 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : J.W. Negele
Publisher : Springer Science & Business Media
ISBN 13 : 0306470675
Total Pages : 315 pages
Book Rating : 4.3/5 (64 download)
Download or read book Advances in Nuclear Physics written by J.W. Negele and published by Springer Science & Business Media. This book was released on 2006-04-18 with total page 315 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume of Advances in Nuclear Physics addresses two very different frontiers of contemporary nuclear physics — one highly theoretical and the other solidly phenomenological. The first article by Matthias Burkardt provides a pedagogical overview of the timely topic of light front quantization. Although introduced decades ago by Dirac, light front quantization has been a central focus in theoretical - clear and particle physics in recent years for two majorreasons. The first, as discussed in detail by Burkardt, is that light-cone coordinates are the natural coordinates for describing high-energy scattering. The wealth of data in recent years on nucleon and nucleus structure functions from high-energy lepton and hadron scattering thus provides a strong impetus for understanding QCD on the light cone. Second, as theorists have explored light front quantization, a host of deep and intriguing theoretical questions have arisen associated with the triviality of the vacuum, the role of zero modes, rotational invariance, and renormalization. These issues are so compelling that they are now intensively investigated on their own merit, independent of the particular application to high-energy scattering. This article provides an excellent introduction and overview of the motivation from high-energy scattering, an accessible - scription of the basic ideas, an insightful discussion of the open problems, and a helpful guide to the specialized literature. It is an ideal opportunity for those with a spectator’s acquaintance to develop a deeper understanding of this important field.
Author : Sigfrido Boffi
Publisher : Clarendon Press
ISBN 13 : 9780198517740
Total Pages : 522 pages
Book Rating : 4.5/5 (177 download)
Download or read book Electromagnetic Response of Atomic Nuclei written by Sigfrido Boffi and published by Clarendon Press. This book was released on 1996 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers the structure and dynamics of atomic nuclei in terms of nucleons, pions, and quarks, all within a unified treatment of the nuclear response to an electromagnetic probe. The basic formalism is presented to describe the electromagnetic field and its interaction with nuclear matter for both real and virtual photons. Nuclear response is then analyzed in terms of structure functions in the case of inclusive and semi-inclusive inelastic electron scattering. The discussion covers pion production and one- or two-nucleon emission and compares the results with available data. The formalism is also extended to incident polarized electrons, polarized targets and nuclear recoil polarization. It contains a comprehensive description of photonuclear reactions at intermediate energies and a review of experimental data and previous theoretical approaches.
