Proposal for a Precision Measurement of |Vub|

Abstract

A new method for a precision measurement of the CKM matrix element |Vub| is discussed, which combines good theoretical control with high efficiency and a powerful discrimination against charm background. The resulting combined theoretical uncertainty on |Vub| is estimated to be 10%.

4 pages, 2 figures, RevTeX

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• Subleading shape functions in B -> X_u l νand the determination of |Vub|
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• Subleading Shape Functions and the Determination of |V_{ub}|
• Subleading shape function contributions to the hadronic invariant mass spectrum in B -> X_u l νdecay

Cited by in corpus (23)

• Theory of Charmless Inclusive B Decays and the Extraction of V_{ub}
• $|V_{ub}|$ from $B\to \pi \ell \nu$ decays and (2+1)-flavor lattice QCD
• Inclusive spectra in charmless semileptonic B decays by Dressed Gluon Exponentiation
• Subleading Shape Functions in Inclusive B Decays
• B-Meson Light-Cone Distribution Amplitude: Perturbative Constraints and Asymptotic Behaviour in Dual Space
• Precision calculations of $B_{d,s}\to \pi ,K$ decay form factors in soft-collinear effective theory
• Measurement of |V_ub| near the endpoint of the electron momentum spectrum from semileptonic B-meson decays
• Determination of |V_ub| from Measurements of the Inclusive Charmless Semileptonic Partial Rates of B Mesons using Full Reconstruction Tags
• Subleading Jet Functions in Inclusive B Decays
• A two-loop relation between inclusive radiative and semileptonic B-decay spectra
• B Meson Decays
• Perturbative corrections to the determination of Vub from the P+ spectrum in B->X_u l nu
• Can $B->X_c\ell \nu$ help us extract |V_{ub}| ?
• Towards the Anomalous Dimension to Order Lambda_QCD/m_b for Phase Space Restricted B --> X(u) ell anti-nu and B --> X(s) gamma
• Quark mixing and CP violation - the CKM matrix
• Shape Functions from B -> X_c \ell ν
• Soft-Collinear Factorization and Sudakov Resummation of Heavy Meson Decay Amplitudes with Effective Field Theories
• Comparative analysis of non-perturbative effects in B -> X_u l anti-nu_l decays
• Is the beta phase maximal ?
• High order perturbative corrections to the determination of |Vub| from the P+ spectrum in B -> Xu l nu
• Semileptonic B Decays and Determination of |Vub|
• Inclusive determinations of Vub and Vcb
• Status of the CKM Matrix