Exclusive c → s, d semileptonic decays of ground-state spin-1/2 doubly charmed baryons

被引：15
作者：
Albertus, C. [1 ,2 ]
Hernandez, E. [1 ,2 ]
Nieves, J. [3 ]
机构：
[1] Univ Salamanca, Dept Fis Fundamental, E-37008 Salamanca, Spain
[2] Univ Salamanca, IUFFyM, E-37008 Salamanca, Spain
[3] Univ Valencia, Inst Fis Corpuscular IFIC, Ctr Mixto CSIC, Inst Invest Paterna, E-46071 Valencia, Spain
来源：
PHYSICS LETTERS B | 2011年 / 704卷 / 05期
关键词：
HEAVY BARYONS; FORM-FACTORS; SPECTROSCOPY; LATTICE; MESONS; LIGHT;
D O I：
10.1016/j.physletb.2011.09.068
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We evaluate exclusive semileptonic decays of ground-state spin-1/2 doubly heavy charmed baryons driven by a c -> s, d transition at the quark level. Our results for the form factors are consistent with heavy quark spin symmetry constraints which are valid in the limit of an infinitely massive charm quark and near zero recoil. Only a few exclusive semileptonic decay channels have been theoretically analyzed before. For those cases we find that our results are in a reasonable agreement with previous calculations. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：499 / 509
页数：11
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