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

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 نشر من قبل Ben Pecjak
 تاريخ النشر 2008
  مجال البحث
والبحث باللغة English
 تأليف Ben D. Pecjak




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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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