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Dark matter in minimal supergravity with type-II seesaw mechanism

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Dark matter in minimal supergravity with type-II seesaw mechanism

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dc.contributor.author	Esteves, J. N.
dc.contributor.author	Kaneko, Satoru
dc.contributor.author	Romao, J. C.
dc.contributor.author	Hirsch, Martin
dc.contributor.author	Porod, Werner
dc.date.accessioned	2014-08-25T10:43:11Z
dc.date.available	2014-08-25T10:43:11Z
dc.date.issued	2009
dc.identifier.citation	Esteves, J. N. Kaneko, Satoru Romao, J. C. Hirsch, Martin Porod, Werner 2009 Dark matter in minimal supergravity with type-II seesaw mechanism Physical Review D 80 9 095003
dc.identifier.uri	http://hdl.handle.net/10550/37387
dc.description.abstract	We calculate the relic density of the lightest neutralino in a supersymmetric seesaw type-II ('triplet seesaw') model with minimal supergravity boundary conditions at the grand unified theory (GUT) scale. The presence of a triplet below the GUT scale, required to explain measured neutrino data in this setup, leads to a characteristic deformation of the sparticle spectrum with respect to the pure minimal supergravity (mSUGRA) expectations, affecting the calculated relic dark matter (DM) density. We discuss how the DM allowed regions in the (m(0),M(1/2)) plane change as a function of the (type-II) seesaw scale. We also compare the constraints imposed on the models parameter space form upper limits on lepton flavor violating decays to those imposed by DM. Finally, we briefly comment on uncertainties in the calculation of the relic neutralino density due to uncertainties in the measured top and bottom masses.
dc.language.iso	eng
dc.relation.ispartof	Physical Review D, 2009, vol. 80, num. 9, p. 095003
dc.subject	Física
dc.title	Dark matter in minimal supergravity with type-II seesaw mechanism
dc.type	journal article	es_ES
dc.date.updated	2014-08-25T10:43:11Z
dc.identifier.doi	10.1103/PhysRevD.80.095003
dc.identifier.idgrec	084488
dc.rights.accessRights	open access	es_ES