Erratum: Next-to-next-to-leading order calculations for heavy-to-light decays [Phys. Rev. D71, 054004 (2005)]
نویسندگان
چکیده
منابع مشابه
Collinear Factorization and Splitting Functions for Next-to-next-to-leading Order QCD Calculations
We consider the singular behaviour of tree-level QCD amplitudes when the momenta of three partons become simultaneously parallel. We discuss the universal factorization formula that controls the singularities of the multiparton matrix elements in this collinear limit and present the explicit expressions of the corresponding splitting functions. The results fully include spin (azimuthal) correla...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2009
ISSN: 1550-7998,1550-2368
DOI: 10.1103/physrevd.79.019901