NAGIOS: RODERIC FUNCIONANDO

Relic density of neutrinos with primordial asymmetries

Repositori DSpace/Manakin

dc.contributor.author	Pastor Carpi, Sergio
dc.contributor.author	Pinto, Teguayco
dc.contributor.author	Raffelt, Georg G.
dc.date.accessioned	2014-07-31T11:43:08Z
dc.date.available	2014-07-31T11:43:08Z
dc.date.issued	2009
dc.identifier.citation	Pastor Carpi, Sergio Pinto, Teguayco Raffelt, Georg G. 2009 Relic density of neutrinos with primordial asymmetries Physical Review Letters 102 24 241302-1 241302-4
dc.identifier.uri	http://hdl.handle.net/10550/37349
dc.description.abstract	We study flavor oscillations in the early universe, assuming primordial neutrino-antineutrino asymmetries. Including collisions and pair processes in the kinetic equations, we not only estimate the degree of flavor equilibration, but for the first time also kinetic equilibration among neutrinos and with the ambient plasma. Typically the restrictive BBN bound on the nue-antinue asymmetry indeed applies to all flavors as claimed in the previous literature, but fine-tuned initial asymmetries always allow for a large surviving neutrino excess radiation that may show up in precision cosmological data.
dc.language.iso	eng
dc.relation.ispartof	Physical Review Letters, 2009, vol. 102, num. 24, p. 241302-1-241302-4
dc.subject	Física
dc.title	Relic density of neutrinos with primordial asymmetries
dc.type	journal article	es_ES
dc.date.updated	2014-07-31T11:43:08Z
dc.identifier.doi	10.1103/PhysRevLett.102.241302
dc.identifier.idgrec	060092
dc.rights.accessRights	open access	es_ES