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Phenomenology of V_ub from Ratios of Inclusive B Decay Rates

Junegone Chay·Adam F. Falk·Michael Luke·Alexey A. Petrov
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Abstract

We explore the theoretical feasibility of extracting V_ub from two ratios built from B meson inclusive partial decays, R_1 = Gamma(b-> u cbar s)/3Gamma(b -> c l nu), and R_2 = [Gamma(b -> c X) - Gamma(b -> cbar X)]/Gamma(b -> c ubar d). We discuss contributions to these quantities from perturbative and nonperturbative physics, and show that they can be computed with overall uncertainties at the level of 10%.

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Junegone Chay, Adam F. Falk, Michael Luke, Alexey A. Petrov. 1999-07-14. Phenomenology of V_ub from Ratios of Inclusive B Decay Rates. https://doi.org/10.1103/physrevd.61.034020

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