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Interplay between collective effects and nonstandard interactions of supernova neutrinos

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Interplay between collective effects and nonstandard interactions of supernova neutrinos

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dc.contributor.author Esteban Pretel, Andreu
dc.contributor.author Tomàs, Ricard
dc.contributor.author Furtado Valle, José Wagner
dc.date.accessioned 2015-09-28T10:23:38Z
dc.date.available 2015-09-28T10:23:38Z
dc.date.issued 2010
dc.identifier.citation Esteban Pretel, Andreu Tomàs, Ricard Furtado Valle, José Wagner 2010 Interplay between collective effects and nonstandard interactions of supernova neutrinos Physical Review D 81 6 063003
dc.identifier.uri http://hdl.handle.net/10550/47375
dc.description.abstract We consider the effect of non-standard neutrino interactions (NSI, for short) on the propagation of neutrinos through the supernova (SN) envelope within a three-neutrino framework and taking into account the presence of a neutrino background. We find that for given NSI parameters, with strength generically denoted by εij, neutrino evolution exhibits a significant time dependence. For |εττ|≳ 10−3 the neutrino survival probability may become sensitive to the θ23 octant and the sign of εττ. In particular, if εττ≳10−2 an internal I-resonance may arise independently of the matter density. For typical values found in SN simulations this takes place in the same dense-neutrino region above the neutrinosphere where collective effects occur, in particular during the synchronization regime. This resonance may lead to an exchange of the neutrino fluxes entering the bipolar regime. The main consequences are (i) bipolar conversion taking place for normal neutrino mass hierarchy and (ii) a transformation of the flux of low-energy νe, instead of the usual spectral swap.
dc.language.iso eng
dc.relation.ispartof Physical Review D, 2010, vol. 81, num. 6, p. 063003
dc.subject Física
dc.title Interplay between collective effects and nonstandard interactions of supernova neutrinos
dc.type journal article es_ES
dc.date.updated 2015-09-28T10:23:38Z
dc.identifier.doi 10.1103/PhysRevD.81.063003
dc.identifier.idgrec 065109
dc.rights.accessRights open access es_ES

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