Shift in weak phase $\gamma$ due to CP asymmetries in $D$ decays to two pseudoscalar mesons

Bhubanjyoti Bhattacharya, David London, Michael Gronau +1

A difference of several tenths of a percent has been observed between the direct CP asymmetries of $D^0\to K^{+}{K}^{-}$ and $D^0\to {\pi }^{+}{\pi }^{-}$. It has been noted recently that CP asymmetri…