Eur. Phys. J. C (2004) 36: 97-102
https://doi.org/10.1140/epjc/s2004-01878-1The rare
https://doi.org/10.1140/epjc/s2004-01878-1
theoretical physics
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
* e-mail: yangyd@henannu.edu.cn
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
