J/ψN interactions revisited and Λb0 → J/ψΚ- (π-)p decays

被引：11
作者：
Xiao, C. W. [1 ,2 ]
机构：
[1] Forschungszentrum Julich, Inst Adv Simulat, Inst Kernphys Theorie, D-52425 Julich, Germany
[2] Forschungszentrum Julich, Julich Ctr Hadron Phys, D-52425 Julich, Germany
来源：
PHYSICAL REVIEW D | 2017年 / 95卷 / 01期
关键词：
KAON-NUCLEON INTERACTIONS; PENTAQUARK STATES; CHIRAL DYNAMICS; DIQUARK MODEL; MESON; PHOTOPRODUCTION; CONSTRAINTS; LAGRANGIANS;
D O I：
10.1103/PhysRevD.95.014006
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Recently LHCb experiments confirmed the findings of the two P-c states in the Lambda(0)(b) -> J/psi p pi(-) decays. In the present work, we investigate both the Lambda(0)(b) -> J/psi K- p and the Lambda(0)(b) -> J/psi p pi(-) decays, continuing the investigations of our former works on the interactions of J/psi N with its coupled channels by considering the s-/u-channel contributions, which are nontrivial in our results. We obtain consistent results with the previous works and the line shape of the J/psi N invariant mass distribution, which is analogous to the LHCb experiments, and favor the P-c (4450) state as a (D) over bar (*) Sigma(c) bound state in our theoretical model.
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页数：11
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