Review of the Low-Lying Excited Baryons Σ*(1/2-)

被引：11

作者：

Wang, En ^{[1
,2
]}

Geng, Li-Sheng ^{[3
,4
,5
,6
]}

Wu, Jia-Jun ^{[6
,7
]}

Xie, Ju-Jun ^{[6
,8
,9
]}

Zou, Bing-Song ^{[6
,7
,10
,11
]}

机构：

[1] Zhengzhou Univ, Sch Phys, Zhengzhou 450001, Peoples R China

[2] Guangxi Normal Univ, Guangxi Key Lab Nucl Phys & Nucl Technol, Guilin, Peoples R China

[3] Beihang Univ, Sch Phys, Beijing 102206, Peoples R China

[4] Beihang Univ, Peng Huanwu Collaborat Ctr Res & Educ, Beijing 100191, Peoples R China

[5] Beihang Univ, Beijing Key Lab Adv Nucl Mat & Phys, Beijing 102206, Peoples R China

[6] Chinese Acad Sci, Inst Modern Phys, Southern Ctr Nucl Sci Theory SCNT, Huizhou 516000, Peoples R China

[7] Univ Chinese Acad Sci, Sch Phys, Beijing 100049, Peoples R China

[8] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China

[9] Univ Chinese Acad Sci, Sch Nucl Sci & Technol, Beijing 101408, Peoples R China

[10] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China

[11] Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China

来源：

CHINESE PHYSICS LETTERS | 2024年 / 41卷 / 10期

基金：

国家重点研发计划; 中国国家自然科学基金;

关键词：

CHIRAL DYNAMICS; STATE; DECAY; LAMBDA(1405); LAMBDA(+)(C); COMPONENTS; SEARCH; MODEL; PI;

D O I：

10.1088/0256-307X/41/10/101401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Strong empirical and phenomenological indications exist for large sea-quark admixtures in the low-lying excited baryons. Investigating the low-lying excited baryon Sigma*(1/2(-)) is important for determining the nature of the low-lying excited baryons. We review the experimental and theoretical progress on the studies of the Sigma*(1/2(-)). Although several candidates have received intensive discussions, such as Sigma(1620) and Sigma(1480), their existence needs further confirmation. Following the prediction of the unquenched quark models for the Sigma*(1/2(-)), many theoretical works suggested the existence of these states in various processes. Future experimental measurements could shed light on the existence of the low-lying excited Sigma*(1/2(-)) state.

引用

页数：7

共 131 条

[31] Odd-parity light baryon resonances [J].