Diminishing "charginos nearly degenerate with the lightest neutralino" slit using precision data
M. Maltoni, M. I. Vysotsky
Abstract
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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