A Determination of the Weak Phase γfrom Color-allowed B^{\pm}_u \to DK^{\pm} Decays

Abstract

We show that it is possible to determine the weak phase γ\equiv \arg (- V^*_{ub} V_{ud} / V^*_{cb} V_{cd}) of the Cabibbo-Kobayashi-Maskawa flavor mixing matrix only from the measurement of the color-allowed B^{\pm}_u \to D K^{\pm} decay rates. The uncertainty of this method, arising mainly from the factorization approximation for two tree-level spectator quark transitions, may be well controlled.

7 pages. Minor changes. Phys. Rev. D (in press)

References in corpus (4)

• Enhanced CP Violation with $B\to K{D}^0({\overline{D}}^0)$ Modes and Extraction of the CKM Angle gamma
• Annihilation, Rescattering, and CP Asymmetries in B Meson Decays
• Weak phase $\gamma$ from color-allowed $B\to DK$ rates
• First Observation of the Cabibbo Suppressed Decay $B^{+}\to {\bar{D}}^0{K}^{+}$

Cited by in corpus (9)

• Determining $\gamma$ using $B^{\pm }\to D{K}^{\pm }$ with multibody D decays
• CP Violation in the B System and Relations to $K\to \pi \nu \bar{\nu }$ Decays
• Improving bounds on $\gamma$ in $B^{\pm }\to D{K}^{\pm }$ and $B^{\pm ,0}\to D{X}_s^{\pm ,0}$
• Measuring $\gamma$ in $B^{\pm }\to K^{\pm }(K{K}^{\ast }{)}_D$ decays
• Using untagged B^0 -> D K_S to determine gamma
• Measurement of the Ratio BR(B- --> D*0 K-)/BR(B- --> D*0 pi-) and of the CP Asymmetry of B- --> D*0(CP+) K- Decays
• Determining the CKM angle gamma with B_c decays
• CP violation in beauty decays
• Final State Interactions and Delta S=-1, Delta C=\pm 1 B--decays