GUT Scale Inflation, Non-Thermal Leptogenesis, and Atmospheric Neutrino Oscillations

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dc.creatorSenoguz, V. N.
dc.creatorShafi, Q.
dc.date2003-09-12
dc.date2003-12-09
dc.date.accessioned2026-07-07T10:28:55Z
dc.date.available2026-07-07T10:28:55Z
dc.descriptionLeptogenesis scenarios in supersymmetric hybrid inflation models are considered. Sufficient lepton asymmetry leading to successful baryogenesis can be obtained if the reheat temperature T_r>10^6 GeV and the superpotential coupling parameter kappa is in the range 10^-6<kappa<10^-2. For this range of kappa the scalar spectral index n_s=0.99+-0.01. Constraints from neutrino mixing further restrict the range of kappa that is allowed. We analyze in detail the case where the inflaton predominantly decays into the next-to-lightest right handed Majorana neutrino taking into account especially the constraints from atmospheric neutrino oscillations.
dc.description1+18 pages, 8 figures. v.2: Abridged and revised, comments and references added, now 1+16 pages, 7 figures, to appear in PLB
dc.identifierhttps://arxiv.org/abs/hep-ph/0309134
dc.identifierhttp://arxiv.org/abs/hep-ph/0309134
dc.identifierPhys.Lett.B582:6-14,2004
dc.identifierdoi:10.1016/j.physletb.2003.12.020
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/177621
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectAstrophysics
dc.titleGUT Scale Inflation, Non-Thermal Leptogenesis, and Atmospheric Neutrino Oscillations
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