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Title: Parity Dependence of Nuclear Level Densities

Abstract

A simple formula for the ratio of the number of odd- and even-parity states as a function of temperature is derived. This formula is used to calculate the ratio of level densities of opposite parities as a function of excitation energy. We test the formula with quantum Monte Carlo shell model calculations in the (pf+g{sub 9/2}) shell. The formula describes well the transition from low excitation energies where a single parity dominates to high excitations where the two densities are equal. (c) 2000 The American Physical Society.

Authors:
 [1];  [2];  [1];  [3]
  1. Center for Theoretical Physics, Sloane Physics Laboratory, Yale University, New Haven, Connecticut 06520 (United States)
  2. Institute for Nuclear Theory and Department of Physics, University of Washington, Seattle, Washington 98195 (United States)
  3. Department of Physics, Chiba University, Inage, Chiba 263-8522, (Japan)
Publication Date:
OSTI Identifier:
20216434
Resource Type:
Journal Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 84; Journal Issue: 19; Other Information: PBD: 8 May 2000; Journal ID: ISSN 0031-9007
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; NUCLEAR PROPERTIES; PARITY; ENERGY LEVELS; MONTE CARLO METHOD; SHELL MODELS; TEMPERATURE DEPENDENCE; THEORETICAL DATA

Citation Formats

Alhassid, Y., Bertsch, G. F., Liu, S., and Nakada, H. Parity Dependence of Nuclear Level Densities. United States: N. p., 2000. Web. doi:10.1103/PhysRevLett.84.4313.
Alhassid, Y., Bertsch, G. F., Liu, S., & Nakada, H. Parity Dependence of Nuclear Level Densities. United States. doi:10.1103/PhysRevLett.84.4313.
Alhassid, Y., Bertsch, G. F., Liu, S., and Nakada, H. Mon . "Parity Dependence of Nuclear Level Densities". United States. doi:10.1103/PhysRevLett.84.4313.
@article{osti_20216434,
title = {Parity Dependence of Nuclear Level Densities},
author = {Alhassid, Y. and Bertsch, G. F. and Liu, S. and Nakada, H.},
abstractNote = {A simple formula for the ratio of the number of odd- and even-parity states as a function of temperature is derived. This formula is used to calculate the ratio of level densities of opposite parities as a function of excitation energy. We test the formula with quantum Monte Carlo shell model calculations in the (pf+g{sub 9/2}) shell. The formula describes well the transition from low excitation energies where a single parity dominates to high excitations where the two densities are equal. (c) 2000 The American Physical Society.},
doi = {10.1103/PhysRevLett.84.4313},
journal = {Physical Review Letters},
issn = {0031-9007},
number = 19,
volume = 84,
place = {United States},
year = {2000},
month = {5}
}