Mean free paths of non-degenerate neutrinos in neutron star matter

Details Mean free paths of non-degenerate neutrinos in neutron star matter Mean free paths of non-degenerate neutrinos in neutron star matter

Jun 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...179..127h&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 179, no. 1-2, June 1987, p. 127-133.

Astronomy and Astrophysics

Astrophysics

16

Degenerate Matter, Mean Free Path, Neutrinos, Neutron Stars, Stellar Composition, Nuclear Scattering, Nucleon-Nucleon Interactions, Stellar Interiors

Scientific paper

The authors calculate the neutrino mean free path in the hot interior of neutron stars in the case when the neutrinos are non-degenerate. The calculations are performed for realistic models of the nucleon-nucleon interaction based on the Reid soft core potential. The scattering rate is calculated within the framework of the Fermi liquid theory using a realistic model of the quasiparticle interaction in nuclear matter. The contribution from the spin-zero sound collective excitations of the nucleon medium is important near normal nuclear matter density, but its importance decreases with increasing density. The effect of the tensor component of the quasiparticle interaction in the nucleon medium on the neutrino scattering rate is negligible. The absorption rate is calculated using a realistic description of the nucleon-nucleon correlations in the initial and final state. The tensor correlation of the neutron-proton pair plays a decisive role in determining the neutrino absorption rate in neutron star matter.

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