Investigation of a candidate spin-1/2 hidden-charm triple strange pentaquark state Pcsss

被引:9
|
作者
Azizi, K. [1 ,2 ,3 ]
Sarac, Y. [4 ]
Sundu, H. [5 ]
机构
[1] Univ Tehran, Dept Phys, North Karegar Ave, Tehran 14395547, Iran
[2] Dogus Univ, Dept Phys, TR-34775 Istanbul, Turkiye
[3] Inst Res Fundamental Sci IPM, Sch Particles & Accelerators, POB 19395-5531, Tehran, Iran
[4] Atilim Univ, Elect & Elect Engn Dept, TR-06836 Ankara, Turkiye
[5] Kocaeli Univ, Dept Phys, TR-41380 Izmit, Turkiye
关键词
DIQUARK-ANTIQUARK MODEL; QCD SUM-RULES; STRONG DECAYS; P-C(4450); P-C(4380); PC(4457); PC(4440); BARYONS;
D O I
10.1103/PhysRevD.107.014023
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
A candidate triple strange pentaquark state, P-csss, is investigated through its strong decay channel P-csss -> C2-J=y/. To calculate the relevant strong coupling constants, two possible interpolating currents with spin-parity JP 1/4 1 - are used. Though the chosen currents for the state under consideration have spin-parity quantum numbers JP 1/4 1 -, they couple to both the positive and negative parity states simultaneously and the corresponding decay widths are obtained for both parities. These widths are obtained as foP(csss) -> J=y/C2- +/_ 1/4 201.4 82.5 MeV for the negative and fo P similar to csss -> J=y/C2- +/_ 1/4 316.4 107.8 MeV for the positive parity state when the first current is used. For the second current, we obtain foP(csss) -> J=y/C2- +/_ 1/4 252.5 116.7 MeV for the negative and fo P similar to csss -> J=y/C2- +/_ 1/4 361.1 ; 98.4 MeV for the positive parity state. These results may provide insights into future experimental observations of such candidate states and help to distinguish and fix their properties.
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页数:13
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