Triplet Leptogenesis in Left-Right Symmetric Seesaw Models

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dc.creatorHallgren, Tomas
dc.creatorKonstandin, Thomas
dc.creatorOhlsson, Tommy
dc.date2007-10-12
dc.date2008-01-15
dc.date.accessioned2026-07-07T11:38:02Z
dc.date.available2026-07-07T11:38:02Z
dc.descriptionWe discuss scalar triplet leptogenesis in a specific left-right symmetric seesaw model. We show that the Majorana phases that are present in the model can be effectively used to saturate the existing upper limit on the CP-asymmetry of the triplets. We solve the relevant Boltzmann equations and analyze the viability of triplet leptogenesis. It is known for this kind of scenario that the efficiency of leptogenesis is maximal if there exists a hierarchy between the branching ratios of the triplet decays into leptons and Higgs particles. We show that triplet leptogenesis typically favors branching ratios with not too strong hierarchies, since maximal efficiency can only be obtained at the expense of suppressed CP-asymmetries.
dc.description16 pages, 5 figures, published version
dc.identifierhttps://arxiv.org/abs/0710.2408
dc.identifierhttp://arxiv.org/abs/0710.2408
dc.identifierJCAP0801:014,2008
dc.identifierdoi:10.1088/1475-7516/2008/01/014
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/199420
dc.subjectHigh Energy Physics - Phenomenology
dc.titleTriplet Leptogenesis in Left-Right Symmetric Seesaw Models
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