Nuclear Level Density and the Effective Nucleon Mass

S. F. Mughabghab and C. Dunford
Phys. Rev. Lett. 81, 4083 – Published 9 November 1998
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Abstract

Novel results were obtained for the spin dispersion parameter, which demonstrate the influence of the nucleon pairing correlations and shell effects in nuclei. The volume and surface parameters of the level density parameter, as well as the shell-damping factor, were determined as av=0.076±0.009MeV1, as=0.180±0.047MeV1, and γ0=0.47±0.04MeV1, respectively. The effective nucleon mass at the Fermi surface is found to be enhanced and its value is m*/m=1.09±0.13. These findings are in excellent agreement with the theoretical estimates of Shlomo and Natowitz.

  • Received 15 April 1998

DOI:https://doi.org/10.1103/PhysRevLett.81.4083

©1998 American Physical Society

Authors & Affiliations

S. F. Mughabghab and C. Dunford

  • Brookhaven National Laboratory, Upton, New York 11973

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Issue

Vol. 81, Iss. 19 — 9 November 1998

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