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Title

Thermal leptogenesis in extended supersymmetric seesaw model

AuthorsHirsch, Martin ; Valle, José W. F. ; Malinsky, Michal; Romao, J. C.; Sarkar, U.
KeywordsNeutrinos
Baryogenesis
[PACS] Unified theories and models of strong and electroweak interactions
[PACS] Supersymmetric unified models
[PACS] Non-standard-model neutrinos, right-handed neutrinos, etc.
[PACS] Particle-theory and field-theory models of the early Universe (including cosmic pancakes, cosmic strings, chaotic phenomena, inflationary universe, etc.)
Issue Date29-Jan-2007
PublisherAmerican Physical Society
CitationPhysical Review D 75(1): 011701 (2007)
AbstractWe consider an extended supersymmetric SO(10) seesaw model with only doublet Higgs scalars, in which neutrino masses are suppressed by the scale of D-parity violation. Leptogenesis can occur at the TeV scale through the decay of a singlet Sigma, thereby avoiding the gravitino crisis. Washout of the asymmetry can be effectively suppressed by the absence of direct couplings of Sigma to leptons.
Description4 pages, 3 figures.-- PACS nr.: 12.10.Dm; 12.60.Jv; 14.60.St; 98.80.Cq.-- ISI Article Identifier: 000243896200006.-- ArXiv pre-print available at: http://arxiv.org/abs/hep-ph/0608006
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevD.75.011701
URIhttp://hdl.handle.net/10261/9195
DOIhttp://dx.doi.org/10.1103/PhysRevD.75.011701
ISSN1550-7998
Appears in Collections:(IFIC) Artículos
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