Probing the parameter space for an MSSM inflation and the neutralino dark matter

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dc.creatorAllahverdi, Rouzbeh
dc.creatorDutta, Bhaskar
dc.creatorMazumdar, Anupam
dc.date2007-02-11
dc.date.accessioned2026-07-07T11:02:42Z
dc.date.available2026-07-07T11:02:42Z
dc.descriptionThe flat directions LLe and udd within the minimal supersymmetric Standard Model provide all the necessary ingredients for a successful inflation with the right amplitude of the scalar density perturbations, negligible gravity waves and the spectral tilt within 2σobserved range 0.92 \leq n_s \leq 1.0. In this paper we explore the available parameter space for inflation in conjunction with a thermal cold dark matter abundance within the minimal supergravity model. Remarkably for the inflaton, which is a combination of squarks and sleptons, there is a stau-neutralino coannihilation region below the inflaton mass 500 GeV for the observed density perturbations and the tilt of the spectrum. For such a low mass of the inflaton the LHC is capable of discovering the inflaton candidates within a short period of its operation. Inflation is also compatible with the focus point region which opens up for the inflaton masses above TeV. We show that embedding MSSM within SO(10) can naturally favor this region.
dc.description9 pages, 6 figures, Latex
dc.identifierhttps://arxiv.org/abs/hep-ph/0702112
dc.identifierhttp://arxiv.org/abs/hep-ph/0702112
dc.identifierPhys.Rev.D75:075018,2007
dc.identifierdoi:10.1103/PhysRevD.75.075018
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/188339
dc.subjectHigh Energy Physics - Phenomenology
dc.titleProbing the parameter space for an MSSM inflation and the neutralino dark matter
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