The Effective Lagrangian for the Seesaw Model of Neutrino Mass and Leptogenesis

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dc.creatorBroncano, A.
dc.creatorGavela, M. B.
dc.creatorJenkins, E.
dc.date2002-10-21
dc.date2006-03-27
dc.date.accessioned2026-07-07T11:09:17Z
dc.date.available2026-07-07T11:09:17Z
dc.descriptionThe effective Lagrangian for the seesaw model is derived including effects due to CP violation. Besides the usual dimension-5 operator responsible for light neutrino masses, a dimension-6 operator is obtained. For three or less heavy neutrino generations, the inclusion of both operators is necessary and sufficient for all independent physical parameters of the high-energy seesaw Lagrangian to appear in the low-energy effective theory, including the CP-odd phases relevant for leptogenesis. The dimension-6 operator implies exotic low-energy couplings for light neutrinos, providing a link between the high-energy physics and low-energy observables.
dc.descriptionFormulae corrected in Table 3
dc.identifierhttps://arxiv.org/abs/hep-ph/0210271
dc.identifierhttp://arxiv.org/abs/hep-ph/0210271
dc.identifierPhys.Lett.B552:177-184,2003; Erratum-ibid.B636:330-331,2006
dc.identifierdoi:10.1016/j.physletb.2006.04.003
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/190415
dc.subjectHigh Energy Physics - Phenomenology
dc.titleThe Effective Lagrangian for the Seesaw Model of Neutrino Mass and Leptogenesis
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