Chiral partner structure of doubly heavy baryons with heavy quark spin-flavor symmetry

被引：33

作者：

Ma, Yong-Liang ^{[1
,2
]}

Harada, Masayasu ^{[3
]}

机构：

[1] Jilin Univ, Ctr Theoret Phys, Changchun 130012, Jilin, Peoples R China

[2] Jilin Univ, Coll Phys, Changchun 130012, Jilin, Peoples R China

[3] Nagoya Univ, Dept Phys, Nagoya, Aichi 4648602, Japan

来源：

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS | 2018年 / 45卷 / 07期

基金：

美国国家科学基金会;

关键词：

flavor symmetries; chiral symmetries; heavy quark effective theory; charmed baryons; bottom baryons; SUPERFLAVOR SYMMETRY; LIGHT-QUARK; MESONS; MODEL;

D O I：

10.1088/1361-6471/aac86e

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The spectrum of the doubly heavy baryons (DHBs) is estimated with respect to the new observation from the LHCb collaboration (Aaij et al (LHCb Collaboration) 2017 Phys. Rev. Lett. 119 112001) by using the chiral partner structure and heavy quark spin-flavor symmetry. The effects of heavy quark flavor symmetry breaking and light quark flavor symmetry are considered. The mass splitting of DHBs with the same spin but opposite parity arises from the generalized Goldberger-Treiman relation. The intermultiplet one-pion transition and intramultiplet radiative transitions are also be estimated.

引用

页数：13

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