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Fitting the Fermi line with neutralino dark matter

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If you have a question about this talk, please contact Helen Vryonidou .

Recent analyses of the publicly available Fermi-LAT gamma-ray data find a line at ~130 GeV coming from the vicinity of the galactic centre. This striking signal is consistent with that from particle dark matter annihilating into a two-body final state containing a photon. In this talk, I review the experimental evidence for the line and outline the implications for neutralino dark matter. Fitting the line while remaining consistent with other constraints will lead us to consider singlet extensions of the MSSM with a rich spectrum of light neutralinos and charginos. I discuss future characteristic phenomenological signatures of this scenario at direct and indirect detection experiments as well as the LHC .

This talk is part of the HEP phenomenology joint Cavendish-DAMTP seminar series.

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