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

Zhi-zhong Xing
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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.

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Zhi-zhong Xing. 1998-06-29. A Determination of the Weak Phase γfrom Color-allowed B^{\pm}_u \to DK^{\pm} Decays. https://doi.org/10.1103/physrevd.58.093005

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