Phenomenology of Vub from ratios of inclusive B decay rates

Junegone Chay; Adam F. Falk; Michael Luke; Alexey A. Petrov

doi:10.1103/PhysRevD.61.034020

Phenomenology of V_ub from ratios of inclusive B decay rates

Junegone Chay, Adam F. Falk, Michael Luke, Alexey A. Petrov

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

We explore the theoretical feasibility of extracting V_ub from two ratios built from B meson inclusive partial decays, R₁ = Γ(b→uc̄s′)/3Γ(b→clv̄) and R ₂=[Γ(b→cX)-Γ(b→c̄X)]/Γ(b→ cūd′). 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%.

Original language	English
Article number	034020
Pages (from-to)	1-11
Number of pages	11
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	61
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevD.61.034020
Publication status	Published - 2000 Feb 1

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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abstract = "We explore the theoretical feasibility of extracting Vub from two ratios built from B meson inclusive partial decays, R1 = Γ(b→u{\=c}s′)/3Γ(b→cl{\=v}) and R 2=[Γ(b→cX)-Γ(b→{\=c}X)]/Γ(b→ cūd′). 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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AU - Falk, Adam F.

AU - Luke, Michael

AU - Petrov, Alexey A.

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N2 - We explore the theoretical feasibility of extracting Vub from two ratios built from B meson inclusive partial decays, R1 = Γ(b→uc̄s′)/3Γ(b→clv̄) and R 2=[Γ(b→cX)-Γ(b→c̄X)]/Γ(b→ cūd′). 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%.

AB - We explore the theoretical feasibility of extracting Vub from two ratios built from B meson inclusive partial decays, R1 = Γ(b→uc̄s′)/3Γ(b→clv̄) and R 2=[Γ(b→cX)-Γ(b→c̄X)]/Γ(b→ cūd′). 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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ER -

Phenomenology of V_ub from ratios of inclusive B decay rates

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