[SEMINARI]: Prof. Romao: A Supersymmetric Solution to the Solar and Atmospheric Neutrino

[Arcadi Santamaria]

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                              S E M I N A R I

        [Image]        Departament de Física Teòrica         [Image]
                  Universitat de València - IFIC (UV-CSIC)
                      46100 Burjassot (València) Spain

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         A Supersymmetric Solution to the Solar and Atmospheric Neutrino
                                     Problems

                              Prof. J. C. Romao

                                (IST-Lisbon)

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                              Seminari del IFIC
                  Tuesday 28 of March of 2000 at 04:30 PM
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                                    Resum

 The simplest unified extension of the Minimal Supersymmetric Standard Model
with bi-linear R--Parity violation provides a predictive scheme for neutrino
  masses which can account for the observed atmospheric and solar neutrino
   anomalies in terms of bi-maximal neutrino mixing. The maximality of the
    atmospheric mixing angle arises dynamically, by minimizing the scalar
 potential, while the solar neutrino problem can be accounted for either by
 large or by small mixing oscillations. One neutrino picks up mass by mixing
 with neutralinos, while the degeneracy and masslessness of the other two is
  lifted only by loop corrections. Despite the smallness of neutrino masses
     R-parity violation is observable at present and future high-energy
       colliders, providing an unambiguous cross-check of the model.

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