GROUND-STATE ENERGY OF A HARD-SPHERE FERMI FLUID .2. SPIN AND ISOSPIN

Citation
Lp. Benofy et al., GROUND-STATE ENERGY OF A HARD-SPHERE FERMI FLUID .2. SPIN AND ISOSPIN, Physical review. C. Nuclear physics, 48(6), 1993, pp. 2685-2696
Citations number
29
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics, Nuclear
ISSN journal
0556-2813
Volume
48
Issue
6
Year of publication
1993
Pages
2685 - 2696
Database
ISI
SICI code
0556-2813(1993)48:6<2685:GEOAHF>2.0.ZU;2-V
Abstract
We evaluate the fourth-order Hugenholtz diagrams from the Rayleigh-Sch rodinger many-body perturbation series for a repulsive, square-well po tential. We consider a system containing four different equal-mass ide ntically interacting particle species, similar to nuclear matter when only the repulsive core is considered. We use the results of these cal culations to extend the L expansion of the ground-state energy of a Fe rmi fluid by one more term. From this extension, we are able to provid e accurate values of the ground-state energy over a density range whic h includes that for infinite nuclear matter.