$\etap K$ puzzle of B meson decays and new physics effects in the TC2 model

Zhenjun Xiao, Wenjun Li, Libo Guo +1

Using the low energy effective Hamiltonian with the generalized factorization, we calculate the new physics contributions to $B\to {\pi }^{+}{\pi }^{-},K\pi$ and $K \etap$ in the Topcolor-assi…