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URN: urn:nbn:de:swb:90-495939

Light stop decays into Wb x ~ 10 near the kinematic threshold

Gröber, R.; Mühlleitner, M.; Popenda, E.; Wlotzka, A.

We investigate the decays of the light stop in scenarios with the lightest neutralino x~10 being the lightest supersymmetric particle, including flavour-violating (FV) effects. We analyse the region where the three-body decay t~1->;Wb x ~10 is kinematically allowed and provide a proper description of the transition region between the three-body decay and the four-body decay t~1->;Wb x ~10bff'. The improved treatment has been implemented in the Fortran package SUSY-HIT and is used for the analysis of this region. A scan over the parameter range including all relevant experimental constraints reveals that the FV two-body decay into charm and x~10 can be as important as the three-, respectively, four-body decays if not dominant and therefore should be taken into account in order to complete the experimental searches for the light stop.

Zugehörige Institution(en) am KIT Institut für Theoretische Physik (ITP)
Publikationstyp Zeitschriftenaufsatz
Jahr 2015
Sprache Englisch
Identifikator ISSN: 0370-2693
KITopen ID: 1000049593
Erschienen in Physics Letters B
Band 747
Seiten 144-151
Bemerkung zur Veröffentlichung Gefördert durch SCOAP3
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