Neutrino-induced lepton flavor violation in gauge-mediated supersymmetry breaking

Details Neutrino-induced lepton flavor violation in gauge-mediated supersymmetry breaking Neutrino-induced lepton flavor violation in gauge-mediated supersymmetry breaking

2003-10-13

arxiv.org/abs/hep-ph/0310148v1

Phys.Rev. D69 (2004) 035010

Physics

High Energy Physics

High Energy Physics - Phenomenology

18 pages, 5 figures

Scientific paper

10.1103/PhysRevD.69.035010

Gauge-mediated supersymmetry breaking is known to greatly suppress flavor changing neutral current effects. However, we show that gauge mediation in the context of leptogenesis implies potentially large lepton flavor violating signals. If the heavy right-handed neutrinos that participate in leptogenesis are lighter than the messenger scale of gauge mediation, they will induce flavor off-diagonal masses to the sleptons which in turn can induce large effects in mu to e gamma, tau to mu gamma, and mu-e conversion in nuclei. We demonstrate this result and compute numerically the lepton-flavor violating decay and conversion rates in scenarios of direct gauge mediation.

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