[SEMINARI]: Dr Maltoni: Charginos nearly degenerate with the lightest neutralino: decreasing the window using precision data.

[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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       Charginos nearly degenerate with the lightest neutralino: decreasing
                         the window using precision data.

                               Michele Maltoni

                                (U. Ferrara)

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         Sala de Juntes de l'edifici de l'IFIC a Paterna, primer pis
                Wednesday 20 of October of 1999 at 03:00 PM
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                                    Resum

    Though LEP II direct searches still cannot exclude a chargino nearly
degenerate with the lightest neutralino if their mass is only slightly above
 half of the Z boson mass, it can be excluded indirectly analyzing precision
    data. In this particular limit simple analytical formulas for oblique
              electroweak radiative corrections are presented.

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