Title of article
Two-loop QCD corrections to b → c transitions at zero recoil: Analytical results Original Research Article
Author/Authors
Andrzej Czarnecki، نويسنده , , Kirill Melnikov, Arkaldy Vainshtein، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 1997
Pages
19
From page
65
To page
83
Abstract
We present analytical results for the O(αs2) contributions to the functions ηA and ηV which parameterize QCD corrections to semileptonic b → c transitions at zero recoil. Previously obtained approximate results are confirmed. The methods of computing the relevant two-loop diagrams with two mass scales are discussed in some detail.
Keywords
* Higher-order QCD corrections , * Heavy quark decays , * Cabibbo-Kobayashi-Maskawa matrix
Journal title
Nuclear Physics B
Serial Year
1997
Journal title
Nuclear Physics B
Record number
880298
Link To Document