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Neutrino mean free path in neutron stars

Caiwan Shen·U. Lombardo·N. Van Giai·W. Zuo
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Abstract

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 $β$-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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Caiwan Shen, U. Lombardo, N. Van Giai, W. Zuo. 2003-07-25. Neutrino mean free path in neutron stars. https://doi.org/10.1103/physrevc.68.055802

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