Eur. Phys. J. A 15, 325-328 (2002)
DOI: 10.1140/epja/i2002-10045-5

Nuclear matter with off-shell propagation

P. Bozek

Institute of Nuclear physics, PL-31-342 Cracow, Poland

bozek@sothis.ifj.edu.pl

(Received: 16 April 2002 / Revised version: 24 May 2002 / Published online: 26 November 2002)

Abstract
Symmetric nuclear matter is studied within the conserving, self-consistent T-matrix approximation. This approach involves off-shell propagation of nucleons in the ladder diagrams. The binding energy receives contributions from the background part of the spectral function, away from the quasiparticle peak. The Fermi energy at the saturation point fulfills the Hugenholz-Van Hove relation. In comparison to the Brueckner-Hartree-Fock approach, the binding energy is reduced and the equation of state is stiffer.

PACS
21.65.+f - Nuclear matter.

© Società Italiana di Fisica, Springer-Verlag 2002