Supersymmetry and CP violation in |ΔS|=1 tau-decays

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dc.creatorDelepine, D.
dc.creatorFaisl, G.
dc.creatorKhalil, S.
dc.creatorCastro, G. Lopez
dc.date2006-08-01
dc.date.accessioned2026-07-07T11:05:23Z
dc.date.available2026-07-07T11:05:23Z
dc.descriptionWe compute the SUSY effective hamiltonian that describes the |ΔS|=1 semileptonic decays of tau leptons. We provide analytical expressions for supersymmetric contribution to tau --> u bar{s} nu_{tau} transition in mass insertion approximation. We show that SUSY contributions may enhance the CP asymmetry of tau --> K pi nu_{tau} decays by several orders of magnitude than the standard model expectations. However, the resulting asymmetry is still well below the current experimental limits obtained by CLEO collaborations. We emphasize that measuring CP rate asymmetry in this decay larger than 10^{-6} would be a clear evidence of physics beyond the supersymmetric extensions of the standard model.
dc.description16 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/hep-ph/0608008
dc.identifierhttp://arxiv.org/abs/hep-ph/0608008
dc.identifierPhys.Rev.D74:056004,2006
dc.identifierdoi:10.1103/PhysRevD.74.056004
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/189186
dc.subjectHigh Energy Physics - Phenomenology
dc.titleSupersymmetry and CP violation in |ΔS|=1 tau-decays
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