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Electroweak Baryogenesis, Large Yukawas and Dark Matter

Show simple item record Provenza, Alessio en_US Quiros, Mariano en_US Ullio, Piero en_US 2005 en_US 2011-09-07T20:27:42Z 2005 en_US 2011-09-07T20:27:42Z 2005 en_US
dc.identifier.citation JHEP 0510 (2005) 048 en_US
dc.identifier.uri en_US
dc.description.abstract It has recently been shown that the electroweak baryogenesis mechanism is feasible in Standard Model extensions containing extra fermions with large Yukawa couplings. We show here that the lightest of these fermionic fields can naturally be a good candidate for cold dark matter. We find regions in the parameter space where the thermal relic abundance of this particle is compatible with the dark matter density of the Universe as determined by the WMAP experiment. We study direct and indirect dark matter detection for this model and compare with current experimental limits and prospects for upcoming experiments. We find, contrary to the standard lore, that indirect detection searches are more promising than direct ones, and they already exclude part of the parameter space. en_US
dc.format.extent 417430 bytes en_US
dc.format.mimetype application/pdf en_US
dc.language.iso en_US en_US
dc.relation.ispartofseries SISSA;58/2005/EP en_US
dc.relation.ispartofseries;hep-ph/0507325 en_US
dc.relation.uri 10.1088/1126-6708/2005/10/048 en_US
dc.title Electroweak Baryogenesis, Large Yukawas and Dark Matter en_US
dc.type Preprint en_US
dc.contributor.department Elementary Particle Theory en_US
dc.contributor.area Physics en_US

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