Self-consistent solution to the nuclear many-body problem at finite temperature

Abstract

The properties of symmetric nuclear matter are investigated within the Green's functions approach. We have implemented an iterative procedure allowing for a self-consistent evaluation of the single-particle and two-particle propagators. The in-medium scattering equation is solved for a realistic (non-separable) nucleon-nucleon interaction including both particle-particle and hole-hole propagation. The corresponding two-particle propagator is constructed explicitely from the singleparticle spectral functions. Results are obtained for finite temperatures and an extrapolation to T=0 is presented.

The entropy of a correlated system of nucleons

“…This is of course related to the fact that hole-hole correlations tend to increase the density of single-particle states close to the Fermi energy. If one tries to parametrize the quasiparticle spectrum close to µ in terms of an effective mass m * , one obtains larger values for the parametrization of the SCGF spectrum than for BHF [33]. Finally, we also show the contribution of S A 1 to the DQ entropy.…”

The Properties of Nuclear Matter

“…Many attempts were made to use the BHF calculations at finite temperature (Baldo and Ferreira, 1999;Bombaci et al, 2006;Frick and Müther, 2003;Rios et al, 2005). In Fig.…”

“…Most of the microscopic calculations have been addressed to study symmetric matter (Frick et al, 2002) and pure neutron matter (Frick and Müther, 2003; Science Publications Dieperink et al, 2003). The study of asymmetric nuclear matter is technically more involved and only few Brueckner-Hartree-Fock (BHF) calculations are available Zuo et al, 1999;Vidana and Bombaci, 2002).…”

Study of the ¹²C(e, e2p) Reaction in a Correlations Dominant Regime with Q² = 2.0 (GeV/c)² and XB > 1

“…In this experiment, electrons were scattered from carbon in parallel kinematics 4 , with large momentum transfer. The extracted spectral function was compared with a self-consistent Green's function theoretical calculation [4] in which the full structure of a nucleon-nucleon potential [28] was taken into account.…”

“…Thus, when calculating the efficiency for the electron spectrometer, acceptance cuts on the proton spectrometer were used and vice-versa. 4. Cuts on the trigger scintillator planes of the spectrometer in question, such that only events that struck the scintillators well within their active areas were included.…”