Zero-recoil sum rules for Λb → Λc form factors

被引：12
|
作者：
Mannel, Thomas [1 ]
van Dyk, Danny [1 ]
机构：
[1] Univ Siegen, Theoret Phys 1, Nat Wissensch Tech Fak, D-57068 Siegen, Germany
来源：
PHYSICS LETTERS B | 2015年 / 751卷
关键词：
D O I：
10.1016/j.physletb.2015.10.016
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We set up a zero recoil sum rule to constrain the form factors of the Lambda(b) -> Lambda(c) transition. Our results are compared with the recent lattice calculation for these transitions. We find the same situation as in the case for B -> D*: The lattice results practically saturate the sum rules, leaving basically no room for excited states. (C) 2015 The Authors. Published by Elsevier B.V.
引用
收藏
页码：48 / 53
页数：6
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