The Supersymmetric Origin of Matter

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dc.creatorBalazs, C.
dc.creatorCarena, M.
dc.creatorMenon, A.
dc.creatorMorrissey, D. E.
dc.creatorWagner, C. E. M.
dc.date2004-12-17
dc.date2009-01-22
dc.date.accessioned2026-07-07T12:32:39Z
dc.date.available2026-07-07T12:32:39Z
dc.descriptionThe Minimal Supersymmetric extension of the Standard Model (MSSM) can provide the correct neutralino relic abundance and baryon number asymmetry of the universe. Both may be efficiently generated in the presence of CP violating phases, light charginos and neutralinos, and a light top squark. Due to the coannihilation of the neutralino with the light stop, we find a large region of parameter space in which the neutralino relic density is consistent with WMAP and SDSS data. We perform a detailed study of the additional constraints induced when CP violating phases, consistent with the ones required for baryogenesis, are included. We explore the possible tests of this scenario from present and future electron Electric Dipole Moment (EDM) measurements, direct neutralino detection experiments, collider searches and the b -> s gamma decay rate. We find that the EDM constraints are quite severe and that electron EDM experiments, together with stop searches at the Tevatron and Higgs searches at the LHC, will provide a definite test of our scenario of electroweak baryogenesis in the next few years.
dc.description30 pages, 14 figures
dc.identifierhttps://arxiv.org/abs/hep-ph/0412264
dc.identifierhttp://arxiv.org/abs/hep-ph/0412264
dc.identifierPhys.Rev.D71:075002,2005
dc.identifierdoi:10.1103/PhysRevD.71.075002
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/216852
dc.subjectHigh Energy Physics - Phenomenology
dc.titleThe Supersymmetric Origin of Matter
dc.typetext

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