Second order QCD corrections to inclusive semileptonic b → Xcl(ν)over-barl decays with massless and massive lepton

被引：0
|
作者：
Biswas, Sandip [1 ]
Melnikov, Kirill [1 ]
机构：
[1] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA
来源：
JOURNAL OF HIGH ENERGY PHYSICS | 2010年 / 02期
基金：
美国国家科学基金会;
关键词：
Quark Masses and SM Parameters; B-Physics; Heavy Quark Physics; O(ALPHA(2)(S)) CORRECTIONS; PERTURBATIVE CORRECTIONS; SPECTRAL MOMENTS; HADRON SPECTRA; HEAVY; RENORMALIZATION; DISTRIBUTIONS; TRANSITIONS; ALGORITHM; RATIO;
D O I：
10.1007/JHEP02(2010)089
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We extend previous computations of the second order QCD corrections to semileptonic b -> c inclusive transitions, to the case where the charged lepton in the final state is massive. This allows accurate description of b -> c tau(nu) over bar (tau) decays. We review techniques used in the computation of O(alpha(2)(s)) corrections to inclusive semileptonic b -> c transitions and present extensive numerical studies of O(alpha(2)(s)) QCD corrections to b -> cl (nu) over bar (l) decays, for l = e, tau.
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页数：31
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