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Nuclear Science Division annual report, October 1, 1986--September 30, 1987

Description: This report summarizes the activities of the Nuclear Science Division during the period October 1, 1986 to September 30, 1987. A highlight of the experimental program during this time was the completion of the first round of heavy-ion running at CERN with ultrarelativistic oxygen and sulfur beams. Very rapid progress is being made in the analysis of these important experiments and preliminary results are presented in this report. During this period, the Bevalac also continued to produce signifi… more
Date: September 1, 1988
Creator: Mahoney, J. (ed.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Physics Division annual report 2002.

Description: 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.
Date: September 8, 2003
Creator: Thayer, K. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Nuclear chromodynamics is not the colorization of nuclear physics

Description: The successful description of nuclei in terms of nucleons, deltas and mesons provides an enormous challenge to QCD. It compels us to pursue our theoretical understanding of chromodynamics into the realm of multiple color singlets in order to examine the concept of color saturation. To pursue this theme, we examine the idea of nuclear transparency in the light of models for confinement and describe the formulation of lattice simulations sensitive to exchange forces. 22 refs., 7 figs.
Date: July 19, 1988
Creator: Sivers, D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Theoretical descriptions of neutron emission in fission

Description: Brief descriptions are given of the observables in neutron emission in fission together with early theoretical representations of two of these observables, namely, the prompt fission neutron spectrum N(E) and the average prompt neutron multiplicity {bar {nu}}{sub p}. This is followed by summaries, together with examples, of modern approaches to the calculation of these two quantities. Here, emphasis is placed upon the predictability and accuracy of the new approaches. In particular, the depende… more
Date: January 1, 1990
Creator: Madland, D.G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Nuclear dissipation and the order to chaos transition

Description: The transition from ordered to chaotic nucleonic motions in the nuclear mean-field potential is reflected in the disappearance of shell effects in nuclear masses and deformations, and in the transition from an elastic, through an elastoplastic, to a dissipative behavior of the nucleus. 23 refs., 10 figs.
Date: June 1, 1988
Creator: Swiatecki, W.J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Quantum mean-field theory of collective dynamics and tunneling

Description: A fundamental problem in quantum many-body theory is formulation of a microscopic theory of collective motion. For self-bound, saturating systems like finite nuclei described in the context of nonrelativistic quantum mechanics with static interactions, the essential problem is how to formulate a systematic quantal theory in which the relevant collective variables and their dynamics arise directly and naturally from the Hamiltonian and the system under consideration. Significant progress has bee… more
Date: January 1, 1981
Creator: Negele, J.W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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TABLE OF ENERGY LEVELS OF ASYMMETRIC EVEN NUCLEI WITH BETA-VIBRATION- ROTATION INTERACTION

Description: The energy levels predicted by Davydov and Chaban's model were computed to compare theoretical predictions with experimental results. The computations were carried out for mu between 1.0, 0.90, 0.40, 0.35, and 0.1 and for gamma between 8, 9, 10, 12, 15, 20, 25, and 30 deg . (W.L.H.)
Date: November 1, 1960
Creator: Day, P.P.; Klema, E.D. & Mallmann, C.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Theoretical nuclear physics. Final report

Description: As the three-year period FY93-FY96 ended, there were six senior investigators on the grant full-time: Bulgac, Henley, Miller, Savage, van Kolck and Wilets. This represents an increase of two members from the previous three-year period, achieved with only a two percent increase over the budget for FY90-FY93. In addition, the permanent staff of the Institute for Nuclear Theory (George Bertsch, Wick Haxton, and David Kaplan) continued to be intimately associated with our physics research efforts. … more
Date: May 1, 1997
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Status of theories for calculations of production cross sections of long-lived radionuclides

Description: The theories discussed in this paper are confined to those currently being used or considered for the calculation of activation cross sections. The theories are the same regardless of whether the activation product is long lived or short lived. However, the cross sections for the generation of long-lived radionuclides are more difficult or expensive to measure, hence there are fewer data available and the requirement on the predictive capability of the theories used is more stringent. It is cle… more
Date: January 1, 1989
Creator: Fu, C.Y.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Cross sections from computer experiments. [Hauser-Feshbach formula]

Description: The use of the width fluctuation corrected Hauser-Feshbach formula is summarized and recent evidence which supports it as compared to other proposed formulas is reviewed. A new formula for the channel fluctuation degree of freedom parameter is given, and other recent developments are summarized.
Date: January 1, 1980
Creator: Moldauer, P.A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Nuclear structure theory. Annual technical progress report, October 1, 1976--September 30, 1977. [Research progress at the University of Rochester]

Description: This report summarizes progress during the past year in the following areas of nuclear structure and reaction theory: (1) statistical spectroscopy, including giant resonances for beta and electromagnetic excitation and sum rules (including inverse-energy-weighted sum rules), statistical methods of truncating shell model spaces and renormalization of operators, study of state labelling and ''chains'' of groups, evaluation of fluctuation measures, technical aspects of operator averaging; (2) meso… more
Date: January 1, 1977
Creator: French, J. B. & Koltun, D. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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