Electroweak Penguin Contributions in $B^{-}(\overline{B_d^0})\to PP$ and $PV$ decays Beyond Leading Logarithms

Dongsheng Du, Libo Guo

Using the next-to-leading order low energy effective Hamiltonian for $|\Delta B|=1$, $\Delta C=\Delta U=0$ transitions, the contributions of electroweak penguin operators in $ B^-(\overline {B_d^0})…