Weak phase $\gamma$ from color-allowed $B\to DK$ rates

Abstract

The ratios of partial rates for charged B decays to the recently observed $D^{0}K$ mode and to the two $D_{CP}K$ final states (CP = $\pm$) are shown to constrain the weak phase $\gamma \equiv \mathrm{Arg}(V_{ub}^{\ast })$. The smaller color-suppressed rate, providing further information about the phase, can be determined from these rates alone. Present estimates suggest that, while the first constraints can already be obtained in a high luminosity e^+e^- B factory, measuring the color-suppressed rate would require dedicated hadronic B production experiments.

7 pages,CALT-68-2159

References in corpus (3)

• Constraining the CKM angle $\gamma$ and penguin contributions through combined $B\to \pi K$ branching ratios
• Weak Phase $\gamma$ From Ratio of $B\to K\pi$ Rates
• Determination of the angle gamma using B -> D* V modes

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