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arXiv · 1110.5194

Determining CP violation angle $γ$ with B decays into a scalar/tensor meson

Wei Wang
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Abstract

We propose a new way for determining the CP violation angle $γ$ without any hadronic uncertainty. The suggested method is to use the two triangles formed by the decay amplitudes of $B^\pm\to (D^0,\bar D^0,D_{CP}^0) K^{*\pm}_{0(2)}(1430)$. The advantages are that large CP asymmetries are expected in these processes and only singly Cabibbo-suppressed $D$ decay modes are involved. Measurements of the branching fractions of the neutral $B_d$ decays into $DK^{*}_{0(2)}(1430)$ and the time-dependent CP asymmetries in $B_s\to (D^0, \bar D^0) M$ ($M=f_0(980),f_0(1370), f_2'(1525), f_1(1285), f_1(1420), h_1(1180))$ provide an alternative way to extract the angle $γ$, which will increase the statistical significance.

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Wei Wang. 2012-02-29. Determining CP violation angle $γ$ with B decays into a scalar/tensor meson. https://doi.org/10.1103/physrevd.85.051301

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