机构:
Univ Sci & Technol Beijing, Sch Math & Phys, Beijing 100083, Peoples R ChinaUniv Sci & Technol Beijing, Sch Math & Phys, Beijing 100083, Peoples R China
Xiao, Li-Ye
[1
]
Wang, Kai-Lei
论文数: 0引用数: 0
h-index: 0
机构:
Changzhi Univ, Dept Elect Informat & Phys, Changzhi 046011, Shanxi, Peoples R ChinaUniv Sci & Technol Beijing, Sch Math & Phys, Beijing 100083, Peoples R China
Wang, Kai-Lei
[2
]
Liu, Ming-Sheng
论文数: 0引用数: 0
h-index: 0
机构:
Hunan Normal Univ, Dept Phys, Changsha, Peoples R China
Minist Educ, Key Lab Low Dimens Quantum Struct & Quantum Contr, Changsha, Peoples R China
Hunan Normal Univ, SICQEA, Changsha 410081, Peoples R ChinaUniv Sci & Technol Beijing, Sch Math & Phys, Beijing 100083, Peoples R China
Liu, Ming-Sheng
[3
,4
,5
]
Zhong, Xian-Hui
论文数: 0引用数: 0
h-index: 0
机构:
Hunan Normal Univ, Dept Phys, Changsha, Peoples R China
Minist Educ, Key Lab Low Dimens Quantum Struct & Quantum Contr, Changsha, Peoples R China
Hunan Normal Univ, SICQEA, Changsha 410081, Peoples R ChinaUniv Sci & Technol Beijing, Sch Math & Phys, Beijing 100083, Peoples R China
Zhong, Xian-Hui
[3
,4
,5
]
机构:
[1] Univ Sci & Technol Beijing, Sch Math & Phys, Beijing 100083, Peoples R China
[2] Changzhi Univ, Dept Elect Informat & Phys, Changzhi 046011, Shanxi, Peoples R China
[3] Hunan Normal Univ, Dept Phys, Changsha, Peoples R China
[4] Minist Educ, Key Lab Low Dimens Quantum Struct & Quantum Contr, Changsha, Peoples R China
[5] Hunan Normal Univ, SICQEA, Changsha 410081, Peoples R China
来源:
EUROPEAN PHYSICAL JOURNAL C
|
2020年
/
80卷
/
03期
基金:
中国国家自然科学基金;
关键词:
HEAVY BARYONS;
NUCLEONS;
D O I:
10.1140/epjc/s10052-020-7823-z
中图分类号:
O412 [相对论、场论];
O572.2 [粒子物理学];
学科分类号:
摘要:
Inspired by the newly observed b states by the LHCb Collaboration, we investigate the two-body strong decays of the low-lying.-mode b baryons up to N = 2 shell using the chiral quark model within the j - j coupling scheme. Our results indicate that: (i) the newly observed states b(6316)- and b(6330)- are good candidates of the light spin j = 1 states, while the spin-parity J P = 1/2and J P = 3/2- cannot be distinguished. The other two states, b(6340) and b(6350) mostly correspond to the light spin j = 2 states, while the spin-parity J P = 3/2- and J P = 5/2- cannot be distinguished as well. (ii) The 2S states with spin-parity J P = 1/2+ and J P = 3/2+, respectively, might be narrow states with a width of < 2 MeV. (iii) The 1D states are not broad and the total decay widths vary from several to dozens of MeV, which have a good potential to be observed in future experiments.
机构:
Sao Paulo State Univ IFT UNESP, Inst Theoret Phys, BR-01140070 Sao Paulo, BrazilSao Paulo State Univ IFT UNESP, Inst Theoret Phys, BR-01140070 Sao Paulo, Brazil
Albuquerque, Raphael M.
Lee, Su Houng
论文数: 0引用数: 0
h-index: 0
机构:
Yonsei Univ, Inst Phys & Appl Phys, Seoul 120749, South KoreaSao Paulo State Univ IFT UNESP, Inst Theoret Phys, BR-01140070 Sao Paulo, Brazil
Lee, Su Houng
Nielsen, Marina
论文数: 0引用数: 0
h-index: 0
机构:
Univ Sao Paulo, Inst Fis, BR-05389970 Sao Paulo, BrazilSao Paulo State Univ IFT UNESP, Inst Theoret Phys, BR-01140070 Sao Paulo, Brazil