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Bilinear R-parity Violation in Rare Meson Decays

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arxiv 0801.2517 v1 pith:E36FYZV4 submitted 2008-01-16 hep-ph

classification hep-ph
keywords decaysr-parityviolationbilinearmesonrareanalogousbranching
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

We discuss rare meson decays $K^ + \to \pi ^ - \ell ^ + \ell '^ +$ and $D^ + \to K^ - \ell ^ + \ell '^ +$ ($\ell ,\ell ' = e,\mu $) in a supersymmetric extension of the standard model with explicit breaking of R-parity by bilinear Yukawa couplings in the superpotential. Estimates of the branching ratios for these decays are given. We also compare our numerical results with analogous ones previously obtained for two other mechanisms of lepton number violation: exchange by massive Majorana neutrinos and trilinear R-parity violation.

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