Affleck-Dine leptogenesis via multiscalar evolution in a supersymmetric seesaw model

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dc.creatorSenami, Masato
dc.creatorTakayama, Tsutomu
dc.date2007-08-16
dc.date2007-11-20
dc.date.accessioned2026-07-07T11:41:54Z
dc.date.available2026-07-07T11:41:54Z
dc.descriptionA leptogenesis scenario in a supersymmetric standard model extended with introducing right-handed neutrinos is reconsidered. Lepton asymmetry is produced in the condensate of a right-handed sneutrino via the Affleck-Dine mechanism. The LH_u direction develops large value due to a negative effective mass induced by the right-handed sneutrino condensate through the Yukawa coupling of the right-handed neutrino, even if the minimum during the inflation is fixed at the origin. The lepton asymmetry is nonperturbatively transfered to the LH_u direction by this Yukawa coupling.
dc.description19 pages, 3 figures. Revised version for publication. The model was modified to fix some problems
dc.identifierhttps://arxiv.org/abs/0708.2238
dc.identifierhttp://arxiv.org/abs/0708.2238
dc.identifierJCAP0711:015,2007
dc.identifierdoi:10.1088/1475-7516/2007/11/015
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/200699
dc.subjectHigh Energy Physics - Phenomenology
dc.titleAffleck-Dine leptogenesis via multiscalar evolution in a supersymmetric seesaw model
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