Theoretical Studies in Nuclear Reactions and Nuclear Structure. Progress Report

Theoretical Studies in Nuclear Reactions and Nuclear Structure. Progress Report PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 72

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Book Description
Research in the Maryland Nuclear Theory Group focusses on problems in four basic areas of current relevance. Hadrons in nuclear matter; the structure of hadrons; relativistic nuclear physics and heavy ion dynamics and related processes. The section on hadrons in nuclear matter groups together research items which are aimed at exploring ways in which the properties of nucleons and the mesons which play a role in the nuclear force are modified in the nuclear medium. A very interesting result has been the finding that QCD sum rules supply a new insight into the decrease of the nucleon's mass in the nuclear medium. The quark condensate, which characterizes spontaneous chiral symmetry breaking of the late QCD vacuum, decreases in nuclear matter and this is responsible for the decrease of the nucleon's mass. The section on the structure of hadrons contains progress reports on our research aimed at understanding the structure of the nucleon. Widely different approaches are being studied, e.g., lattice gauge calculations, QCD sum rules, quark-meson models with confinement and other hedgehog models. A major goal of this type of research is to develop appropriate links between nuclear physics and QCD. The section on relativistic nuclear physics represents our continuing interest in developing an appropriate relativistic framework for nuclear dynamics. A Lorentz-invariant description of the nuclear force suggests a similar decrease of the nucleon's mass in the nuclear medium as has been found from QCD sum rules. Work in progress extends previous successes in elastic scattering to inelastic scattering of protons by nuclei. The section on heavy ion dynamics and related processes reports on research into the ee− problem and heavy ion dynamics.

Theoretical Studies in Nuclear Reactions and Nuclear Structure. Progress Report

Theoretical Studies in Nuclear Reactions and Nuclear Structure. Progress Report PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 72

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Book Description
Research in the Maryland Nuclear Theory Group focusses on problems in four basic areas of current relevance. Hadrons in nuclear matter; the structure of hadrons; relativistic nuclear physics and heavy ion dynamics and related processes. The section on hadrons in nuclear matter groups together research items which are aimed at exploring ways in which the properties of nucleons and the mesons which play a role in the nuclear force are modified in the nuclear medium. A very interesting result has been the finding that QCD sum rules supply a new insight into the decrease of the nucleon's mass in the nuclear medium. The quark condensate, which characterizes spontaneous chiral symmetry breaking of the late QCD vacuum, decreases in nuclear matter and this is responsible for the decrease of the nucleon's mass. The section on the structure of hadrons contains progress reports on our research aimed at understanding the structure of the nucleon. Widely different approaches are being studied, e.g., lattice gauge calculations, QCD sum rules, quark-meson models with confinement and other hedgehog models. A major goal of this type of research is to develop appropriate links between nuclear physics and QCD. The section on relativistic nuclear physics represents our continuing interest in developing an appropriate relativistic framework for nuclear dynamics. A Lorentz-invariant description of the nuclear force suggests a similar decrease of the nucleon's mass in the nuclear medium as has been found from QCD sum rules. Work in progress extends previous successes in elastic scattering to inelastic scattering of protons by nuclei. The section on heavy ion dynamics and related processes reports on research into the ee− problem and heavy ion dynamics.

Theoretical Studies in Nuclear Reaction and Nuclear Structure. Progress Report, March 1, 1976--August 31, 1977. [Summary of Research Progress at the University of Maryland].

Theoretical Studies in Nuclear Reaction and Nuclear Structure. Progress Report, March 1, 1976--August 31, 1977. [Summary of Research Progress at the University of Maryland]. PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description
This progress report is divided into five sections covering Many-Body and Few-Body Reaction Theory, Intermediate Energy Reactions, Pion Reactions, and Nuclear Dynamics describing recent progress on thirty-five specific topics. In addition, Appendices list the publications (44), invited (13) and contributed (36) papers of the research group since March, 1976.

Theoretical Studies in Nuclear Reaction and Nuclear Structure. Final Report, January 1, 1975--June 30, 1976

Theoretical Studies in Nuclear Reaction and Nuclear Structure. Final Report, January 1, 1975--June 30, 1976 PDF Author:
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ISBN:
Category :
Languages : en
Pages :

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Book Description
Progress in theoretical research is reported under the following readings: (1) few nuclear reactions, Eikonal approximations, and optical models; (2) pion reactions; (3) nuclear structure by reaction studies; (4) nuclear dynamics. (SDF).

Theoretical Studies in Nuclear Physics. Progress Report, 1 May 1991--30 April 1992

Theoretical Studies in Nuclear Physics. Progress Report, 1 May 1991--30 April 1992 PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 28

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Book Description
Work in nuclear structure and reaction theory, specifically, the relation of reactions to the nuclear structure. Other work was in intermediate energy physics, few-body problems, and computational physics that heavy ions can be used to measure simultaneously both neutron and proton multipole matrix elements of the target nucleus has added new interest to this area of nuclear structure. Considerable attention to the is therefore paid to the to the methods for calculating multiple matrix elements.

Theoretical Studies in Nuclear Physics. Three Year Progress Report and Final Report

Theoretical Studies in Nuclear Physics. Three Year Progress Report and Final Report PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 13

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Book Description
In 1995 the DOE grant in Nuclear theory with Professors Rubin H. Landau and Victor A. Madsen as co-principal investigators ended. Their research was carried out in collaboration with graduate students in Corvallis, and with scientists at LLNL-Livermore, Los Alamos, TRIUMF, KFA-Julich, Hamburg University, Melbourne University, The Thinking Machine Corporation and IBM Research. Activities in nuclear and particle physics at Oregon State University (OSU) were diverse and active. Madsens̀ work concentrated on the relation of reactions to the nuclear structure, and Landaus̀ work concentrated on intermediate energy physics, few-body problems, and computational physics. The Landau group had a weekly meeting of students and visitors. There was a weekly nuclear seminar with experimental and theoretical colleagues, and a weekly departmental colloquium. The DOE support had permitted the group to run Unix workstations networked to other computers in the Physics Department and the University. Since 1990 OSU has been using IBM RISC System 6000/model 530 with console and four X-stations. The equipment was purchased and is maintained with yearly DOE funding of the group.

Theoretical Studies in Nuclear Reactions and Nuclear Structure

Theoretical Studies in Nuclear Reactions and Nuclear Structure PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 72

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Book Description
Research in the Maryland Nuclear Theory Group focusses on problems in four basic areas of current relevance. Hadrons in nuclear matter; the structure of hadrons; relativistic nuclear physics and heavy ion dynamics and related processes. The section on hadrons in nuclear matter groups together research items which are aimed at exploring ways in which the properties of nucleons and the mesons which play a role in the nuclear force are modified in the nuclear medium. A very interesting result has been the finding that QCD sum rules supply a new insight into the decrease of the nucleon's mass in the nuclear medium. The quark condensate, which characterizes spontaneous chiral symmetry breaking of the late QCD vacuum, decreases in nuclear matter and this is responsible for the decrease of the nucleon's mass. The section on the structure of hadrons contains progress reports on our research aimed at understanding the structure of the nucleon. Widely different approaches are being studied, e.g., lattice gauge calculations, QCD sum rules, quark-meson models with confinement and other hedgehog models. A major goal of this type of research is to develop appropriate links between nuclear physics and QCD. The section on relativistic nuclear physics represents our continuing interest in developing an appropriate relativistic framework for nuclear dynamics. A Lorentz-invariant description of the nuclear force suggests a similar decrease of the nucleon's mass in the nuclear medium as has been found from QCD sum rules. Work in progress extends previous successes in elastic scattering to inelastic scattering of protons by nuclei. The section on heavy ion dynamics and related processes reports on research into the ee− problem and heavy ion dynamics.

Theoretical Studies in High Energy Nuclear Physics. Progress Report

Theoretical Studies in High Energy Nuclear Physics. Progress Report PDF Author:
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ISBN:
Category :
Languages : en
Pages :

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Book Description
This paper is a progress report for the period 1-1-93 to 6-30-95 on a project primarily directed at the application of high energy physics techniques to nuclear structure studies, and the ability to study hadron dynamics through interactions with nuclear targets. This work has included the first legitimate QCD calculations of hard coherent diffractive processes off nucleon (nuclear) targets which established novel features of color transparency phenomenon not anticipated in the previous intuitive or QCD inspired model calculations and predicted the fast increase of the cross section for electroproduction of[rho]-mesons with increase of the energy, which was confirmed very recently by the first HERA data on this reaction. First theoretical demonstration that color transparency phenomenon for the hard diffractive processes follow from QCD in the kinematics when both x[yields]0 and Q[sup 2][yields][infinity]. Establishing the pattern of color (cross section) fluctuations in hadrons. Confirmed by the FNAL inelastic diffraction data. Finding that in realistic quark, skyrmion models of a hadron large momentum transfer elastic lepton-hadron scattering occurs through formation of small spatial size configurations. Discovering a novel class of color transparency sensitive double interaction processes which is complementary to quasielastic reactions originally suggested by S. Brodsky and A. Mueller. Adopting ideas suggested elsewhere for hadron initiated reactions they developed a method for taking into account nuclear correlations in (e, e[prime]p) reactions. Such an approach gives practical possibility to overcome ambiguities of optical model approximation used before and to reliably interpret color transparency effects at intermediate Q[sup 2].

Nuclear Science Abstracts

Nuclear Science Abstracts PDF Author:
Publisher:
ISBN:
Category : Nuclear energy
Languages : en
Pages : 612

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Book Description


Research in Theoretical Nuclear Physics. Progress Report, November 1, 1992--October 31, 1993

Research in Theoretical Nuclear Physics. Progress Report, November 1, 1992--October 31, 1993 PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 7

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Book Description
This report describes the accomplishments in basic research in nuclear physics carried out by the theoretical nuclear physics group in the Department of Physics at the University of Texas at Austin, during the period of November 1, 1992 to October 31, 1993. The work done covers three separate areas, low-energy nuclear reactions, intermediate energy physics, and nuclear structure studies. Although the subjects are thus spread among different areas, they are based on two techniques developed in previous years. These techniques are a powerful method for continuum-random-phase-approximation (CRPA) calculations of nuclear response and the breakup-fusion (BF) approach to incomplete fusion reactions, which calculation on a single footing of various incomplete fusion reaction cross sections within the framework of direct reaction theories. The approach was developed as a part of a more general program for establishing an approach to describing all different types of nuclear reactions, i.e., complete fusion, incomplete fusion and direct reactions, in a systematic way based on single theoretical framework.

Research in Theoretical Nuclear Physics. Progress Report, November 1, 1989--September 1992

Research in Theoretical Nuclear Physics. Progress Report, November 1, 1989--September 1992 PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 44

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Book Description
This report discusses topics in the following areas: Low energy nuclear reactions induced by light and heavy ions; medium energy physics; and nuclear structure. (LSP).