-> k+ k-
 {\cal A}_{ \bar{B}^0 \to K^- K^+}
  &=& \sum\limits_{p=u,c} V_{pb}V_{pd}^{\ast}
  \Big\{ B_{ \bar{K} K} \Big[ \delta_{pu} b_1 + b_4^p
  + b_{4,{\rm EW}}^p \Big] + B_{ K \bar{K} } \Big[
  b_4^p - \frac{1}{2} b_{4,{\rm EW}}^p \Big] \Big\}
  \label{amp4}, \\
  %%%%%%%%%%%%%%%% B0 -> k0 k0
 {\cal A}_{ \bar{B}^0 \to \bar{K}^0 K^0}
  &=& \sum\limits_{p=u,c} V_{pb}V_{pd}^{\ast}
  \Big\{ A_{ \bar{K} K} \Big[ \alpha_4^p
  - \frac{1}{2} \alpha_{4,{\rm EW}}^p + \beta_3^p
  + \beta_4^p - \frac{1}{2} \beta_{3,{\rm EW}}^p
  - \frac{1}{2} \beta_{4,{\rm EW}}^p \Big]
  \nonumber \\ & &
  + B_{ K \bar{K} } \Big[
  b_4^p - \frac{1}{2} b_{4,{\rm EW}}^p \Big] \Big\}
  \label{b02kzkz}, \\
  %%%%%%%%%%%%%%%% B- -> pi- pi0
 \sqrt{2} {\cal A}_{ B^- \to \pi^- \pi^0 }
  &=& \sum\limits_{p=u,c} V_{pb}V_{pd}^{\ast}
  A_{ \pi \pi }
  \Big\{ \delta_{pu} ( \alpha_1 + \alpha_2 )
  + \frac{3}{2} ( \alpha_{3,{\rm EW}}^p
  + \alpha_{4,{\rm EW}}^p) \Big\}
  \label{amp5}, \\
  %%%%%%%%%%%%%%%% B0 -> pi+ pi-
 {\cal A}_{ \bar{B}^0 \to \pi^+ \pi^- }
  &=& \sum\limits_{p=u,c} V_{pb}V_{pd}^{\ast}
  A_{ \pi \pi }
  \Big\{ \delta_{pu} ( \alpha_1 + \beta_1 )
  + \alpha_{4}^p + \alpha_{4,{\rm EW}}^p
  + \beta_3^p + 2 \beta_4^p
  \nonumber \\ & &
  - \frac{1}{2} \beta_{3,{\rm EW}}^p
  + \frac{1}{2} \beta_{4,{\rm EW}}^p \Big\}
  \label{amp6}, \\
  %%%%%%%%%%%%%%%% B0 -> pi0 pi0
 -{\cal A}_{ \bar{B}^0 \to \pi^0 \pi^0 }
  &=& \sum\limits_{p=u,c} V_{pb}V_{pd}^{\ast}
  