The q2 moments in inclusive semileptonic B decays

被引：13
|
作者：
Finauri, G. [1 ]
Gambino, P. [1 ,2 ,3 ,4 ]
机构：
[1] Tech Univ Munich, Phys Dept T31, James Franck Str 1, D-85748 Garching, Germany
[2] Univ Torino, Dip Fis, Via Giuria 1, I-10125 Turin, Italy
[3] INFN, Sez Torino, Via Giuria 1, I-10125 Turin, Italy
[4] Max Planck Inst Phys & Astrophys, Fohringer Ring 6, D-80805 Munich, Germany
来源：
JOURNAL OF HIGH ENERGY PHYSICS | 2024年 / 2024卷 / 02期
关键词：
Bottom Quarks; CKM Parameters; Semi-Leptonic Decays; DISTRIBUTIONS;
D O I：
10.1007/JHEP02(2024)206
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 compute the first moments of the q(2) distribution in inclusive semileptonic B decays as functions of the lower cut on q(2), confirming a number of results given in the literature and adding the O(alpha(2)(s)beta(0)) BLM contributions. We then include the q(2)-moments recently measured by Belle and Belle II in a global fit to the moments. The new data are compatible with the other measurements and slightly decrease the uncertainty on the nonperturbative parameters and on |V-cb|. Our updated value is |V-cb| = (41.97 +/- 0.48) x 10(-3).
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收藏
页数：23
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