Phys. Rev. Lett. 81, 4083–4086 (1998)Nuclear Level Density and the Effective Nucleon MassReceived 15 April 1998; published in the issue dated 9 November 1998 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±0.009MeV-1, as = 0.180±0.047MeV-1, and γ0 = 0.47±0.04MeV-1, 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. © 1998 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.81.4083
DOI:
10.1103/PhysRevLett.81.4083
PACS:
21.10.Ma, 21.30.Fe, 21.60.-n, 24.10.Pa
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