Neutrino mean free path in neutron stars

Details Neutrino mean free path in neutron stars Neutrino mean free path in neutron stars

2003-07-25

arxiv.org/abs/nucl-th/0307101v1

Phys.Rev. C68 (2003) 055802

Physics

Nuclear Physics

Nuclear Theory

7 pages, 5 figures, RevTeX 4

Scientific paper

10.1103/PhysRevC.68.055802

The neutrino propagation in neutron stars is studied in the framework of the linear response method. The medium effects are treated in the non-relativistic Brueckner-Hartree-Fock approach either in the mean-field approximation or in the RPA. The residual interaction is expressed in terms of the Landau parameters extracted from the equation of state of spin- and isospin-polarized nuclear matter. The Brueckner theory including three-body forces is used for determining the equation of state. Numerical predictions for the response function of nuclear matter in $\beta$-equilibrium and the neutrino mean free path are presented in a range of baryonic densities and temperatures. The main results are a dominance of the charge-exchange component over the scattering component and an enhancement of the neutrino mean free path induced by nuclear correlations.

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