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Baryogenesis with superheavy squarks

journal contribution
posted on 2023-06-08, 09:32 authored by Stephan HuberStephan Huber
We consider a set-up 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 1011 GeV, while neutralino dark matter induces a stronger bound of 1013 GeV. Some mass splitting between left- and right-handed squarks may be needed to also satisfy constraints from gluino cosmology.

History

Publication status

  • Published

Journal

Journal of Cosmology and Astroparticle Physics

ISSN

1475-7516

Publisher

Institute of Physics

Issue

2

Volume

2006

Page range

008

Department affiliated with

  • Physics and Astronomy Publications

Full text available

  • No

Peer reviewed?

  • Yes

Legacy Posted Date

2012-02-06

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