Improving bounds on $γ$ in $B^{\pm} \to DK^{\pm}$ and $B^{\pm,0} \to D X_s^{\pm,0}$

Details Improving bounds on $γ$ in $B^{\pm} \to DK^{\pm}$ and $B^{\pm,0} \to D X_s^{\pm,0}$ Improving bounds on $γ$ in $B^{\pm} \to DK^{\pm}$ and $B^{\pm,0} \to D X_s^{\pm,0}$

2002-11-18

arxiv.org/abs/hep-ph/0211282v4

Phys.Lett. B557 (2003) 198-206

Physics

High Energy Physics

High Energy Physics - Phenomenology

References updated, to be published in Phys. Lett. B

Scientific paper

10.1016/S0370-2693(03)00192-8

In view of recent experimental progress in rate and CP asymmetry measurements in $B^{\pm} \to DK^{\pm}$, we reconsider information on the weak phase $\gamma$ which can be obtained from these processes. Model-independent inequalities are proven for $\sin^2\gamma$ in terms of two ratios of partial rates for $B^{\pm,0} \to D X_s^{\pm,0}$, where $X_s$ is any multiparticle charmless state carrying strangeness $\pm 1$. Good prospects are shown to exist for using these inequalities and CP asymmetry measurements in two body and multibody decays in order to improve present bounds on $\gamma$.

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