Model independent limits on an ultra-light gravitino from Supernovae

@article{Catena2014ModelIL,
  title={Model independent limits on an ultra-light gravitino from Supernovae},
  author={Riccardo Catena and Laura Covi and Timon Emken},
  journal={arXiv: High Energy Physics - Phenomenology},
  year={2014}
}
  • Riccardo Catena, Laura Covi, Timon Emken
  • Published 2014
  • Physics
  • arXiv: High Energy Physics - Phenomenology
  • We revisit astrophysical constraints on models with an ultra-light gravitino, in particular extending the analysis to more general models and the case of R-parity breaking. These constraints allow to restrict the value of the gravitino mass depending on the masses of scalar moduli. We perform both a frequentist and bayesian analysis and we find comparable results, even if the bayesian analysis is in part affected by volume effects. Only a small window of gravitino masses can be excluded by the… CONTINUE READING
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