Sneutrino Leptogenesis at the Electroweak Scale

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dc.creatorEllis, John
dc.creatorKang, Sin Kyu
dc.date2005-05-18
dc.date.accessioned2026-07-07T03:54:55Z
dc.date.available2026-07-07T03:54:55Z
dc.descriptionWe propose an alternative mechanism for leptogenesis at the electroweak scale, through the decays of a left-handed sneutrino. This scenario may be realized in supersymmetric models with non-zero Majorana masses for the neutrino superfield that lead to mixing and mass splitting between the left-handed sneutrino and the corresponding antisneutrino. Soft supersymmetry breaking provides new sources of CP violation in sneutrino-antisneutrino mixing that can generate a lepton asymmetry in decays of the left-handed sneutrino. We show how the three Sakharov conditions for generating the observed baryon asymmetry of the Universe can be fulfilled in this restrictive framework.
dc.description13 pages, 2 figures
dc.identifierhttps://arxiv.org/abs/hep-ph/0505162
dc.identifierhttp://arxiv.org/abs/hep-ph/0505162
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/44382
dc.subjectHigh Energy Physics - Phenomenology
dc.titleSneutrino Leptogenesis at the Electroweak Scale
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