Variation of Effective Mass and Level Density Parameter with Nuclear Temperature in Semi-infinite Nuclear Matter

Chin. Phys. Lett.

1992, Vol. 9

Issue (8): 403-406 DOI:

Original Articles

Variation of Effective Mass and Level Density Parameter with Nuclear Temperature in Semi-infinite Nuclear Matter

HUANG Weizhi;WANG Zixing;P. F. Bortignon*;R. A. Broglia**

Institute of Nuclear Research, Academia Sinica, Shanghai 201800 *Istitudo Di Ingegneria Nucleare Centro Studi Nucleari Enrico Fermi-CESNEF, Milano, Italy **Dipartimento di Fisica, Univertitá di Milano and INFN, Sez. Milano, Milano, Italy and Niels Bohr Institute, University of Copenhagen Copenhagen, Denmark, DK-2100

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HUANG Weizhi, WANG Zixing, P. F. Bortignon et al 1992 Chin. Phys. Lett. 9 403-406

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Abstract The temperature dependence of the self-energy of a particle is studied in semi-infinite nuclear matter. Based on the finite temperature Green’s function Mat-subara formalism and applying it to the single particle-states in ²⁰⁸Pb, the calculated results show that the characteristic enhancement of the effective mass at near the Fermi energy disappears at temperature T=3 MeV, and correspondingly, as a consequence the level-density parameter should decrease in agreement with recent empirical data.

Keywords: 21.10.-k

Published: 01 August 1992

PACS:

21.10.-k

(Properties of nuclei; nuclear energy levels)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y1992/V9/I8/0403

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