Isovector Vibrations in Nuclear Matter at Finite Temperature

Details Isovector Vibrations in Nuclear Matter at Finite Temperature Isovector Vibrations in Nuclear Matter at Finite Temperature

1998-07-27

arxiv.org/abs/nucl-th/9807070v1

Phys.Rev.C59:3099-3108,1999

Physics

Nuclear Physics

Nuclear Theory

gzipped LaTeX file with text: 19 pages, 26 blocks; 3 gzipped *.ps files with figures: 50 blocks

Scientific paper

10.1103/PhysRevC.59.3099

We consider the propagation and damping of isovector excitations in heated nuclear matter within the Landau Fermi-liquid theory. Results obtained for nuclear matter are applied to calculate the Giant Dipole Resonance (GDR) at finite temperature in heavy spherical nuclei within Steinwedel and Jensen model. The centroid energy of the GDR slightly decreases with increasing temperature and the width increases as $T^2$ for temperatures $T < 5$ MeV in agreement with recent experimental data for GDR in $^{208}$Pb and $^{120}$Sn. The validity of the method for other Fermi fluids is finally suggested.

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