期刊
EUROPEAN PHYSICAL JOURNAL C
卷 78, 期 7, 页码 -出版社
SPRINGER
DOI: 10.1140/epjc/s10052-018-6083-7
关键词
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资金
- National Natural Science Foundation of China [11705056, 11775078]
- China Postdoctoral Science Foundation [2017M620492]
Considering the mass, parity and D-0 p decay mode, we tentatively assign the Lambda(c)(2940) as the P-wave states with one radial excitation. Then, via studying the strong decay behavior of the Lambda(c) (2940) within the P-3(0) model, we obtain that the total decay widths of the Lambda(c1)(1/2(-), 2P) and Lambda(c1)(3/2(-), 2P) states are 16.27 and 25.39 MeV, respectively. Compared with the experimental total width 27.71(-6.0)(+8.2) +/- 0.9(-10.4)(+5.2) MeV measured by LHCb Collaboration, both assignments are allowed, and the J(P) = 3/2(-)assignment is more favorable. Other lambda-mode Sigma(c)(2P) states are also investigated, which are most likely to be narrow states and have good potential to be observed in future experiments.
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