NAGIOS: RODERIC FUNCIONANDO

On the full Boltzmann equations for leptogenesis

Repositori DSpace/Manakin

Valencià Castellano

Inici
Investigació
e-prints
22 - Física
Visualitza element

IMPORTANT: Aquest repositori està en una versió antiga des del 3/12/2023. La nova instal.lació está en https://roderic.uv.es/

On the full Boltzmann equations for leptogenesis

Mostra el registre parcial de l'element

dc.contributor.author	Garayoa, Julia
dc.contributor.author	Pastor Carpi, Sergio
dc.contributor.author	Pinto, Teguayco
dc.contributor.author	Rius Dionis, Nuria
dc.contributor.author	Vives García, Óscar
dc.date.accessioned	2014-09-03T09:29:50Z
dc.date.available	2014-09-03T09:29:50Z
dc.date.issued	2009
dc.identifier.citation	Garayoa, Julia Pastor Carpi, Sergio Pinto, Teguayco Rius Dionis, Nuria Vives García, Óscar 2009 On the full Boltzmann equations for leptogenesis Journal Of Cosmology And Astroparticle Physics 09 9 035
dc.identifier.uri	http://hdl.handle.net/10550/37485
dc.description.abstract	We consider the full Boltzmann equations for standard and soft leptogenesis, instead of the usual integrated Boltzmann equations which assume kinetic equilibrium for all species. Decays and inverse decays may be inefficient for thermalising the heavy-(s)neutrino distribution function, leading to significant deviations from kinetic equilibrium. We analyse the impact of using the full kinetic equations in the case of a previously generated lepton asymmetry, and find that the washout of this initial asymmetry due to the interactions of the right-handed neutrino is larger than when calculated via the integrated equations. We also solve the full Boltzmann equations for soft leptogenesis, where the lepton asymmetry induced by the soft SUSY-breaking terms in sneutrino decays is a purely thermal effect, since at T=0 the asymmetry in leptons cancels the one in sleptons. In this case, we obtain that in the weak washout regime (K < 1) the final lepton asymmetry can change up to a factor four with respect to previous estimates.
dc.language.iso	eng
dc.relation.ispartof	Journal Of Cosmology And Astroparticle Physics, 2009, vol. 09, num. 9, p. 035
dc.subject	Física
dc.title	On the full Boltzmann equations for leptogenesis
dc.type	journal article	es_ES
dc.date.updated	2014-09-03T09:29:50Z
dc.identifier.doi	10.1088/1475-7516/2009/09/035
dc.identifier.idgrec	054620
dc.rights.accessRights	open access	es_ES