Model-independent extraction of |Vcb| from (B)over-bar → D* l(v)over-bar

被引：71
|
作者：
Grinstein, Benjamin [1 ]
Kobach, Andrew [1 ]
机构：
[1] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA
来源：
PHYSICS LETTERS B | 2017年 / 771卷
关键词：
DISPERSIVE BOUNDS;
D O I：
10.1016/j.physletb.2017.05.078
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We fit the unfolded data of (B) over bar (0) -> D*(+) l (v) over bar from the Belle experiment, where l e, mu, using a method independent of heavy quark symmetry to extrapolate to zero- recoil and extract the value of vertical bar V-cb vertical bar. This results in vertical bar V-cb vertical bar = (41.9(-1.9)(+2.0)) x 10(-3), which is robust to changes in the theoretical inputs and very consistent with the value extracted from inclusive semileptonic B decays. (C) 2017 The Author(s). Published by Elsevier B.V.
引用
收藏
页码：359 / 364
页数：6
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