Heavy-light mesons in chiral AdS/QCD

被引：18
作者：
Liu, Yizhuang [1 ]
Zahed, Ismail [1 ]
机构：
[1] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA
来源：
PHYSICS LETTERS B | 2017年 / 769卷
关键词：
VECTOR-MESONS; STATES; MOLECULES; SYMMETRY; Z(B)(10610); BREAKING; HADRONS; CHARM; BELLE;
D O I：
10.1016/j.physletb.2017.04.007
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We discuss a minimal holographic model for the description of heavy-light and light mesons with chiral symmetry, defined in a slab of AdS space. The model consists of a pair of chiral Yang-Mills and tachyon fields with specific boundary conditions that break spontaneously chiral symmetry in the infrared. The heavy-light spectrum and decay constants are evaluated explicitly. In the heavy mass limit the model exhibits both heavy-quark and chiral symmetry and allows for the explicit derivation of the one-pion axial couplings to the heavy-light mesons. (C) 2017 The Authors. Published by Elsevier B.V.
引用
收藏
页码：314 / 321
页数：8
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