Constrained SUSY seesaws with a 125 GeV Higgs
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Constrained SUSY seesaws with a 125 GeV Higgs

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Constrained SUSY seesaws with a 125 GeV Higgs

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dc.contributor.author Hirsch, Martin
dc.contributor.author Joaquim, F.R.
dc.contributor.author Vicente Montesinos, Avelino
dc.date.accessioned 2014-08-26T08:49:12Z
dc.date.available 2014-08-26T08:49:12Z
dc.date.issued 2012
dc.identifier.uri http://hdl.handle.net/10550/37399
dc.description.abstract Motivated by the ATLAS and CMS discovery of a Higgs-like boson with a mass around 125 GeV, and by the need of explaining neutrino masses, we analyse the three canonical SUSY versions of the seesaw mechanism (type I, II and III) with CMSSM boundary conditions. In type II and III cases, SUSY particles are lighter than in the CMSSM (or the constrained type I seesaw), for the same set of input parameters at the universality scale. Thus, to explain m(h0) similar or equal to 125 GeV at low energies, one is forced into regions of parameter space with very large values of m(0), M-1/2 or A(0). We compare the squark and gluino masses allowed by the ATLAS and CMS ranges for m(h0) (extracted from the 2011-2012 data), and discuss the possibility of distinguishing seesaw models in view of future results on SUSY searches. In particular, we briefly comment on the discovery potential of LHC upgrades, for squark/gluino mass ranges required by present Higgs mass constraints. A discrimination between different seesaw models cannot rely on the Higgs mass data alone, therefore we also take into account the MEG upper limit on BR(mu -> e gamma) and show that, in some cases, this may help to restrict the SUSY parameter space, as well as to set complementary limits on the seesaw scale.
dc.language.iso eng
dc.relation.ispartof Journal of High Energy Physics, 2012, vol. 2012, num. 11, p. 105
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source Hirsch, Martin Joaquim, F.R. Vicente Montesinos, Avelino 2012 Constrained SUSY seesaws with a 125 GeV Higgs Journal of High Energy Physics 2012 11 105
dc.subject Física
dc.title Constrained SUSY seesaws with a 125 GeV Higgs
dc.type info:eu-repo/semantics/article
dc.date.updated 2014-08-26T08:49:12Z
dc.identifier.doi http://dx.doi.org/10.1007/JHEP11(2012)105
dc.identifier.idgrec 084417

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