Sneutrino NLSP Scenarios in the NUHM with Gravitino Dark Matter

  title={Sneutrino NLSP Scenarios in the NUHM with Gravitino Dark Matter},
  author={John Ellis and Keith A. Olive and Yudi Santoso},
  journal={arXiv: High Energy Physics - Phenomenology},
We analyze scenarios in which some flavour of sneutrino is the next-to-lightest supersymmetric particle (NLSP), assuming that the gravitino is the lightest supersymmetric particle (LSP) and provides the cold dark matter. Such scenarios do not arise in the constrained supersymmetric extension of the Standard Model (CMSSM) with universal gaugino and scalar masses input at the GUT scale. However, models with non-universal Higgs masses (NUHM) do allow scenarios with a sneutrino NLSP, which are… 

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