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Baryogenesis with Superheavy Squarks
We consider a setup where R-parity is violated in the framework of split supersymmetry. The out-of-equilibrium decays of heavy squarks successfully lead to the generation of a baryon asymmetry. We restrict the R-parity violating couplings to the baryon number violating subset to keep the neutralino...
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Lenguaje: | eng |
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2005
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Acceso en línea: | https://dx.doi.org/10.1088/1475-7516/2006/02/008 http://cds.cern.ch/record/877292 |
_version_ | 1780907905302659072 |
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author | Huber, Stephan J. |
author_facet | Huber, Stephan J. |
author_sort | Huber, Stephan J. |
collection | CERN |
description | We consider a setup where R-parity is violated in the framework of split supersymmetry. The out-of-equilibrium decays of heavy squarks successfully lead to the generation of a baryon asymmetry. We restrict the R-parity violating couplings to the baryon number violating subset to keep the neutralino sufficiently stable to provide the dark matter. The observed baryon asymmetry can be generated for squark masses larger than 10^11 GeV, while neutralino dark matter induces a stronger bound of 10^13 GeV. Some mass splitting between left- and right-handed squarks may be needed to satisfy also constraints from gluino cosmology. |
id | cern-877292 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2005 |
record_format | invenio |
spelling | cern-8772922023-03-14T20:25:53Zdoi:10.1088/1475-7516/2006/02/008http://cds.cern.ch/record/877292engHuber, Stephan J.Baryogenesis with Superheavy SquarksParticle Physics - PhenomenologyWe consider a setup where R-parity is violated in the framework of split supersymmetry. The out-of-equilibrium decays of heavy squarks successfully lead to the generation of a baryon asymmetry. We restrict the R-parity violating couplings to the baryon number violating subset to keep the neutralino sufficiently stable to provide the dark matter. The observed baryon asymmetry can be generated for squark masses larger than 10^11 GeV, while neutralino dark matter induces a stronger bound of 10^13 GeV. Some mass splitting between left- and right-handed squarks may be needed to satisfy also constraints from gluino cosmology.We consider a setup where R-parity is violated in the framework of split supersymmetry. The out-of-equilibrium decays of heavy squarks successfully lead to the generation of a baryon asymmetry. We restrict the R-parity violating couplings to the baryon number violating subset to keep the neutralino sufficiently stable to provide the dark matter. The observed baryon asymmetry can be generated for squark masses larger than 10^11 GeV, while neutralino dark matter induces a stronger bound of 10^13 GeV. Some mass splitting between left- and right-handed squarks may be needed to satisfy also constraints from gluino cosmology.hep-ph/0508208CERN-PH-TH-2005-151CERN-PH-TH-2005-151oai:cds.cern.ch:8772922005-08-19 |
spellingShingle | Particle Physics - Phenomenology Huber, Stephan J. Baryogenesis with Superheavy Squarks |
title | Baryogenesis with Superheavy Squarks |
title_full | Baryogenesis with Superheavy Squarks |
title_fullStr | Baryogenesis with Superheavy Squarks |
title_full_unstemmed | Baryogenesis with Superheavy Squarks |
title_short | Baryogenesis with Superheavy Squarks |
title_sort | baryogenesis with superheavy squarks |
topic | Particle Physics - Phenomenology |
url | https://dx.doi.org/10.1088/1475-7516/2006/02/008 http://cds.cern.ch/record/877292 |
work_keys_str_mv | AT huberstephanj baryogenesiswithsuperheavysquarks |