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Author Fabbri, G. ♦ Matera, F.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PHYSICS ♦ NUCLEAR MATTER ♦ NEUTRINO-NUCLEON INTERACTIONS ♦ NEUTRINOS ♦ MEAN FREE PATH ♦ DENSITY ♦ NEUTRON STARS ♦ SCALAR MESONS ♦ VECTOR MESONS ♦ NEUTRAL PARTICLES ♦ CHARGED PARTICLES ♦ SELF-CONSISTENT FIELD ♦ NUCLEON-NUCLEON INTERACTIONS ♦ COOLING
Abstract We calculate the neutrino mean free path for neutrino-nucleon scattering in highly asymmetric nuclear matter ({ital N}{gt}{ital Z}) at densities typical for the core of a neutron star. Nuclear matter is described by means of a relativistic field theory of nucleons coupled to neutral, scalar ({sigma}), and vector ({omega}) mesons and to charged vector mesons ({ital d}). The correlation effects induced by the strong interaction of nucleons are taken into account within a self-consistent mean field approximation. The contribution of the exchange terms to the nucleon-nucleon interaction is also included. We present results for physical situations which are expected to occur in the cooling of neutron stars. Exchange terms have the effect of increasing the neutrino mean free path by about 50{percent}. {copyright} {ital 1996 The American Physical Society.}
ISSN 05562813
Educational Use Research
Learning Resource Type Article
Publisher Date 1996-10-01
Publisher Place United States
Journal Physical Review, C
Volume Number 54
Issue Number 4


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