Corpus ID: 62888139

Two-loop stability of singlet extensions of the SM with dark matter

  title={Two-loop stability of singlet extensions of the SM with dark matter},
  author={R. Costa and A. P. Morais and M. Sampaio and R. Santos},
  journal={arXiv: High Energy Physics - Phenomenology},
  • R. Costa, A. P. Morais, +1 author R. Santos
  • Published 2015
  • Physics
  • arXiv: High Energy Physics - Phenomenology
  • We present a study of the high energy stability of a minimal complex singlet extension of the Standard Model with or without dark matter (CxSM). We start by obtaining the beta functions of the couplings of the theory from the eective potential and then perform the RGE evolution for the allowed parameter space of the model at the electroweak scale. We obtain the scale up to which the model survives and combine this information with all the LHC measurements as well as bounds from dark matter… CONTINUE READING

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