A CP sensitive asymmetry in the three--body decay stop_1 -> b tau+ tau-sneutrino

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dc.creatorBartl, A.
dc.creatorKernreiter, T.
dc.creatorPorod, W.
dc.date2002-02-21
dc.date2002-05-21
dc.date.accessioned2026-07-07T10:32:59Z
dc.date.available2026-07-07T10:32:59Z
dc.descriptionWe consider the three--body decay stop_1 -> b tau+ tau-sneutrino and propose the asymmetry of the tau polarization perpendicular to the decay plane as a CP sensitive observable. We calculate this asymmetry in the Minimal Supersymmetric Standard Model taking the parameters mu and A_t complex. In the parameter domain where the decay stop_1 -> b tau+ tau-sneutrino is important this asymmetry can go up to 30%. We also estimate the event rates necessary to observe this asymmetry at 90% CL.
dc.descriptionLaTex, 9 pages, 3 figures, v2, improved treatment of transversal polarized taus, modified table, conclusions unchanged
dc.identifierhttps://arxiv.org/abs/hep-ph/0202198
dc.identifierhttp://arxiv.org/abs/hep-ph/0202198
dc.identifierPhys.Lett.B538:59-65,2002
dc.identifierdoi:10.1016/S0370-2693(02)01953-6
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/178953
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Experiment
dc.titleA CP sensitive asymmetry in the three--body decay stop_1 -> b tau+ tau-sneutrino
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