Weak phase $γ$ from color-allowed $B \to D K$ rates

Details Weak phase $γ$ from color-allowed $B \to D K$ rates Weak phase $γ$ from color-allowed $B \to D K$ rates

1998-02-12

arxiv.org/abs/hep-ph/9802315v1

Phys.Rev.D58:037301,1998

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages,CALT-68-2159

Scientific paper

10.1103/PhysRevD.58.037301

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 $\gamma \equiv {\rm Arg} (V_{ub}^*)$. 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.

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