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

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

1998-04-28

arxiv.org/abs/hep-ph/9804434v2

Phys.Rev. D58 (1998) 093005

Physics

High Energy Physics

High Energy Physics - Phenomenology

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

Scientific paper

10.1103/PhysRevD.58.093005

We show that it is possible to determine the weak phase \gamma \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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