Interpretation of the newly observed Σb(6097)± and Ξb (6227) - states as the P-wave bottom baryons

被引：47

作者：

Wang, Kai-Lei ^{[1
,2
]}

Lu, Qi-Fang ^{[1
,2
,3
]}

Zhong, Xian-Hui ^{[1
,2
,3
]}

机构：

[1] Hunan Normal Univ, Dept Phys, Changsha 410081, Hunan, Peoples R China

[2] Minist Educ, Key Lab Low Dimens Quantum Struct & Quantum Contr, Changsha 410081, Hunan, Peoples R China

[3] Hunan Normal Univ, SICQEA, Changsha 410081, Hunan, Peoples R China

来源：

PHYSICAL REVIEW D | 2019年 / 99卷 / 01期

基金：

中国国家自然科学基金;

关键词：

HEAVY BARYONS; QUARK-MODEL; MASSES;

D O I：

10.1103/PhysRevD.99.014011

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The strong decays of the P-wave singly bottom heavy baryons belonging to 6(F) are investigated with a constituent quark model in the j-j coupling scheme. The results show that the newly observed Sigma(b) (6097) and Xi(b) (6227) states by the LHCb collaboration can be assigned as the lambda-mode P-wave bottom baryons belonging to 6(F). Given the heavy quark symmetry, both the Sigma(b) (6097) and Xi(b) (6227) states favor the light spin j = 2 states with spin-parity numbers J(P) = 3/2(-) or J(P) = 5/2(-). More P-wave baryons in the Sigma(b),Xi(b)', and Omega(b) families are most likely to be observed in future experiments for their relatively narrow width.

引用

页数：9

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