The rare decays in the standard model and as a probe of R-parity violation
Department of Physics, Henan Normal University, 453002, P.R. China
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We present a first study of the rare annihilation decay in the standard model. Using the QCD factorization formalism, we find . The smallness of the decay rate in the standard model makes the decay a sensitive probe of new physics contributions. As an example, we calculate the effects of R-parity violating couplings. Within the available upper bounds for and , could be enhanced to the order of , which might be accessible at LHCB, B-TeV and the planned super high luminosity B factories at KEK and SLAC.
© Springer-Verlag, 2004