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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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.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.rights.uri info:eu-repo/semantics/openAccess
dc.source 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.subject Física
dc.title Dark matter in minimal supergravity with type-II seesaw mechanism
dc.type info:eu-repo/semantics/article
dc.date.updated 2014-08-25T10:43:11Z
dc.identifier.doi http://dx.doi.org/10.1103/PhysRevD.80.095003
dc.identifier.idgrec 084488

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