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Neutrino propagation and spin zero sound in hot neutron matter with Skyrme interactions

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Neutrino propagation and spin zero sound in hot neutron matter with Skyrme interactions

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dc.contributor.author Navarro Faus, Jesús
dc.contributor.author Hernández, Esther Susana
dc.contributor.author Vautherin, D.
dc.date.accessioned 2014-07-10T10:54:30Z
dc.date.available 2014-07-10T10:54:30Z
dc.date.issued 1999
dc.identifier.citation Navarro Faus, Jesús Hernández, Esther Susana Vautherin, D. 1999 Neutrino propagation and spin zero sound in hot neutron matter with Skyrme interactions Physical Review C 60 4 045801
dc.identifier.uri http://hdl.handle.net/10550/37154
dc.description.abstract We present microscopic calculations of neutrino propagation in hot neutron matter above nuclear density within the framework of the Random Phase Approximation. Calculations are performed for non- degenerate neutrinos using various Skyrme effective interactions. We find that for densities just above nuclear density, spin zero sound is present at zero temperature for all Skyrme forces considered. However it disappears rapidly with increasing temperature due to a strong Landau damping. As a result the mean-free path is given, to a good approximation, by the mean field value. Because of the renormalization of the bare mass in the mean field, the medium is more transparent as compared to the free case. We find, in contrast, that at several times nuclear density, a new type of behavior sets in due to the vicinity of a magnetic instability. It produces a strong reduction of the mean free path. The corresponding transition density however occurs in a region where inputs from more realistic calculations are necessary for the construction of a reliable Skyrme type parametrization.
dc.language.iso eng
dc.relation.ispartof Physical Review C, 1999, vol. 60, num. 4, p. 045801
dc.subject Física
dc.title Neutrino propagation and spin zero sound in hot neutron matter with Skyrme interactions
dc.type journal article es_ES
dc.date.updated 2014-07-10T10:54:30Z
dc.identifier.doi 10.1103/PhysRevC.60.045801
dc.identifier.idgrec 082239
dc.rights.accessRights open access es_ES

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