Self-consistent Green's functions calculation of the nucleon mean-free path

Abstract

The extension of Green's functions techniques to the complex energy plane provides access to fully dressed quasi-particle properties from a microscopic perspective. Using self-consistent ladder self-energies, we find both spectra and lifetimes of such quasi-particles in nuclear matter. With a consistent choice of the group velocity, the nucleon mean-free path can be computed. Our results indicate that, for energies above 50 MeV at densities close to saturation, a nucleon has a mean-free path of 4 to 5 femtometers.

5 pages, 4 figures. Minor changes, bibliography corrected. Accepted version in Phys. Rev. Lett

References in corpus (3)

• Shear viscosity of neutron matter from realistic nucleon-nucleon interactions
• In medium T-matrix for nuclear matter with three-body forces - binding energy and single particle properties
• The mean free path of protons and neutrons in isospin-asymmetric nuclear matter

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