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Gravitino dark matter and light gluino in an R-invariant low scale gauge mediation

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Abstract

We consider the simplest class of the R-invariant gauge mediation model with the gravitino mass in the one to ten keV range. We show that the entropy production from the supersymmetry breaking sector makes the gravitino into a warm dark matter candidate. We also discuss that the gluino mass can be lighter than the wino mass even when the messenger sector satisfies the GUT relations at the GUT scale.

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Authors and Affiliations

  1. Institute for the Physics and Mathematics of the Universe, University of Tokyo, Kashiwa, 277-8568, Japan

    Masahiro Ibe, Ryosuke Sato, Tsutomu T. Yanagida & Kazuya Yonekura

  2. Department of Physics, University of Tokyo, Tokyo, 113-0033, Japan

    Masahiro Ibe, Ryosuke Sato, Tsutomu T. Yanagida & Kazuya Yonekura

Authors
  1. Masahiro Ibe
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  2. Ryosuke Sato
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  3. Tsutomu T. Yanagida
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  4. Kazuya Yonekura
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Correspondence to Ryosuke Sato.

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ArXiv ePrint: 1012.5466

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Ibe, M., Sato, R., Yanagida, T.T. et al. Gravitino dark matter and light gluino in an R-invariant low scale gauge mediation. J. High Energ. Phys. 2011, 77 (2011). https://doi.org/10.1007/JHEP04(2011)077

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  • DOI: https://doi.org/10.1007/JHEP04(2011)077

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