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Paper   IPM / Physic / 11540
School of Physics
  Title:   A Framework to Simultaneously Explain Tiny Neutrino Mass and Huge Missing Mass Problem of the Universe
  Author(s):  Y. Farzan
  Status:   Published
  Journal: Mod. Phys. Lett. A
  No.:  25
  Vol.:  25
  Year:  2010
  Pages:   2111-2120
  Supported by:  IPM
  Abstract:
Recently a minimalistic scenario has been developed to explain dark matter and tiny but nonzero neutrino masses. In this scenario, a new scalar called SLIM plays the role of the dark matter. Neutrinos achieve Majorana mass through a one-loop diagram. This scenario can be realized for both real and complex SLIM. Simultaneously explaining the neutrino mass and dark matter abundance constrains the scenario. In particular for real SLIM, an upper bound of a few MeV on the masses of the new particles and a lower bound on their coupling are obtained which make the scenario testable. The low energy scenario can be embedded within various SU(2)×U(1) symmetric models. I shall briefly review the scenario and a specific model that embeds the scenario, with special emphasis on the effects in the charged Kaon decay which might be observable at the KLOE and NA62 experiments.

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