Enhanced rate in MSSM singlet extensions
arXiv:1208.1683 · doi:10.1007/JHEP10(2012)195
Abstract
We study the di-photon rate in Higgs decays within singlet extensions of the supersymmetric standard model. In particular we point out that light charginos as well as a light charged Higgs can significantly contribute to the corresponding partial decay width, allowing for an explanation of the experimental indication whithin a natural supersymmetric model. This is in contrast to the `light stau scenario' proposed within the framework of the MSSM which requires a large amount of electroweak fine tuning.
19 pages, 8 figures; v2: added discussion on constraints from and . Matches version accepted by JHEP
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