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arXiv · 0810.2921

NNLO corrections to B --> X_u l nu and the determination of |V_ub|

Ben D. Pecjak
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Abstract

The calculation of partial decay rates in B --> X_u l nu decays at next-to-next-to-leading order (NNLO) in alpha_s and to leading order in 1/m_b is described. New results for the hard function are combined with known results for the jet function and shape-function moments in a numerical analysis which explores the impact of the NNLO corrections on partial decay rates and the determination of |V_{ub}|.

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Ben D. Pecjak. 2008-10-16. NNLO corrections to B --> X_u l nu and the determination of |V_ub|. https://arxiv.org/abs/0810.2921

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