Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
11007730 | Nuclear Physics A | 2018 | 11 Pages |
Abstract
We extend our previous study on the decay behavior of Pc hadronic molecules to their strange and beauty partners. While Pc(4380) and Pc(4450) locate just below the D¯Σcâ and D¯âΣc thresholds, respectively, their proposed strange partners N(1875) and N(2080) sit just below the KΣâ and KâΣ thresholds, respectively. Using the effective Lagrangian approach as the same as for the study of Pc hadronic molecular states and with the couplings determined by the SU(3) flavor symmetry, the decay patterns of N(1875) and N(2080) are obtained assuming them to be the S-wave KΣâ and KâΣ molecules, respectively. It is found that the measured decay properties of N(1875) and N(2080) are reproduced well. Our results suggest that both N(1875) and N(2080) can be described as the hadronic molecular pentaquark states in the hidden strangeness sector with quantum number I(JP)=1/2(3/2â). Further checks on their hadronic molecule nature by various experiments are proposed. With the same approach, we also give our predictions for the decay behavior of the possible beauty partners of the Pc hadronic molecular states. The BâÎb is found to be the largest decay mode for both BΣbâ and BâΣb hadronic molecules, hence can be used to look for the hidden beauty pentaquark states in forthcoming experiments.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
Yong-Hui Lin, Chao-Wei Shen, Bing-Song Zou,