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Generation mixing of sneutrinos in heavier chargino decay

Midori Obara1 and Noriyuki Oshimo2

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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.

Keywords

Supersymmetry Phenomenology

Supersymmetric Standard Model

 

E-print Number: hep-ph/0508269

Cited: by |

Refers: to

PACS

12.60.Jv Supersymmetric models

13.35.Bv Decays of muons

14.80.Ly Supersymmetric partners of known particles

13.66.-a Lepton-lepton interactions

14.60.Pq Neutrino mass and mixing

Subjects

Particle physics and field theory

Dates

Issue 08 (August 2006)

Received 23 February 2006, accepted for publication 26 July 2006

Published 23 August 2006



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