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

页码：314 / 321

页数：8

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