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Title: Theoretical research in intermediate-energy nuclear physics. [Technical progress report, April 1, 1993--March 31, 1994]

Abstract

This paper discusses progress that has been made on the following seven problems: (1) (e, e{prime}p) at high momentum transfer; (2) post,acceleration effects in two-nucleon interferometry of heavy-ion collisions; (3) pion-nucleus interactions above 0.5 GeV; (4) chiral symmetry breaking in nuclei and picnic atom anomaly; (5) atomic screening on nuclear astronomical reactions; (6) QCD related work (coherent pion production from skyrmion-antiskyrmion annihilation, QCD in 1 + 1 dimensions, and correlation functions in the QCD vacuum), and (7) kaonic hydrogen atom experiment. The problems deal with various topics mostly in intermediate-energy nuclear physics. We place priority on (1) and (2), and describe them somewhat in detail below. Other problems are our on-going projects, but we are placing lower priority on them in the second and third year.

Authors:
Publication Date:
Research Org.:
California State Univ., Northridge, CA (United States). Dept. of Physics and Astronomy
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
10181232
Report Number(s):
DOE/ER/40347-T2
ON: DE94018579; BR: KB0300000; TRN: 94:018931
DOE Contract Number:
FG03-87ER40347
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: [1994]
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; NUCLEAR PHYSICS; RESEARCH PROGRAMS; PROGRESS REPORT; ELECTRON REACTIONS; MOMENTUM TRANSFER; QUANTUM CHROMODYNAMICS; CHIRAL SYMMETRY; SYMMETRY BREAKING; SKYRME POTENTIAL; SOLITONS; 663000; 662230

Citation Formats

Seki, R. Theoretical research in intermediate-energy nuclear physics. [Technical progress report, April 1, 1993--March 31, 1994]. United States: N. p., 1994. Web. doi:10.2172/10181232.
Seki, R. Theoretical research in intermediate-energy nuclear physics. [Technical progress report, April 1, 1993--March 31, 1994]. United States. doi:10.2172/10181232.
Seki, R. Thu . "Theoretical research in intermediate-energy nuclear physics. [Technical progress report, April 1, 1993--March 31, 1994]". United States. doi:10.2172/10181232. https://www.osti.gov/servlets/purl/10181232.
@article{osti_10181232,
title = {Theoretical research in intermediate-energy nuclear physics. [Technical progress report, April 1, 1993--March 31, 1994]},
author = {Seki, R.},
abstractNote = {This paper discusses progress that has been made on the following seven problems: (1) (e, e{prime}p) at high momentum transfer; (2) post,acceleration effects in two-nucleon interferometry of heavy-ion collisions; (3) pion-nucleus interactions above 0.5 GeV; (4) chiral symmetry breaking in nuclei and picnic atom anomaly; (5) atomic screening on nuclear astronomical reactions; (6) QCD related work (coherent pion production from skyrmion-antiskyrmion annihilation, QCD in 1 + 1 dimensions, and correlation functions in the QCD vacuum), and (7) kaonic hydrogen atom experiment. The problems deal with various topics mostly in intermediate-energy nuclear physics. We place priority on (1) and (2), and describe them somewhat in detail below. Other problems are our on-going projects, but we are placing lower priority on them in the second and third year.},
doi = {10.2172/10181232},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Sep 01 00:00:00 EDT 1994},
month = {Thu Sep 01 00:00:00 EDT 1994}
}

Technical Report:

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  • In the period covered by this report (April 1, 1987 to March 31, 1988), work focused on five main areas: Relativistic Theories of Nuclear Structure and Saturation; Relativistic Descriptions of Proton-Nucleus Scattering; Multipole Sum Rules and Ground-State Correlations; Gamow-Teller Excitations in Nuclear Charge-Exchange Reactions; Relativistic Many-Body Theory at Finite Temperature and Density. Results and publications in these areas are summarized in this report. 32 refs., 1 fig.
  • In this period covered by this report (April 1, 1988 to March 31, 1989), work focused on six main areas: Relativistic Theories of Nuclear Structure and Saturation; Relativistic Descriptions of Proton- Nucleus and Electron-Nucleus Scattering; Nonrelativistic Theory of Nucleon-Nucleus Reactions; Gamow-Teller Excitations in Nuclear Charge- Exchange Reactions; Relativistic Many-Body Theory at Finite Temperature and Density and Relativistic Atomic Physics of High Z Atoms. Results and publications in these areas are summarized in this report.
  • Progress made in the following areas is summarized: simulation of extensive air showers induced by interactions existing beyond the currently accepted ``Standard Model`` of elementary particle interactions; search for physics beyond the ``Standard Model`` in gluonic inclusive decays of heavy quarks; obtaining limits on the applicability of the special theory of relativity; an improved method of obtaining upper limits on the masses of primaries of extensive air showers associated with point sources in the sky. 8 figs., 1 tab., 73 refs.
  • 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 April 1, 1993 to March 31, 1996. The work done covers three separate areas, low energy nuclear reactions, intermediate energy physics, and nuclear structure studies. Although the various subjects are spread among different areas, they are all based on two techniques that they have developed in previous years. These techniques are: (a) a powerful method for continuum-random-phase-approximation (CRPA) calculations of the nuclear response; and, (b)more » the direct reaction approach to complete and incomplete fusion reactions, which enables them to describe on a single footing all the different types of nuclear reactions, i.e., complete fusion, incomplete fusion and direct reactions, in a systematic way based on a single theoretical framework. In this report, the authors first summarize their achievements in these three areas, and then present final remarks.« less
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