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arXiv · hep-ph/0508269

Generation Mixing of Sneutrinos in Heavier Chargino Decay

Midori Obara·Noriyuki Oshimo
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Abstract

The heavier chargino decay could yield two charged leptons of different generations, owing to generation mixing of sneutrinos. We discuss the possibility of producing $e$ and $μ$ through this process in near future collider experiments. The analyses are made systematically in the supersymmetric extension of the standard model without assuming a specific scenario for the mixing. Production of the heavier chargino is evaluated in $e^+e^-$ collisions. In the parameter region consistent with nonobservation of the radiative $μ$ decay, sizable parts lead to a detectable branching ratio for the generation-changing decay of the heavier chargino.

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Midori Obara, Noriyuki Oshimo. 2006-06-24. Generation Mixing of Sneutrinos in Heavier Chargino Decay. https://doi.org/10.1088/1126-6708%2F2006%2F08%2F054

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