期刊
NUCLEAR PHYSICS A
卷 954, 期 -, 页码 371-392出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.nuclphysa.2016.04.038
关键词
Pentaquark reactions; Molecular states with hidden charm
资金
- Chinese Academy of Science in the Program of Visiting Professorship for Senior International Scientists [2013T2J0012]
- National Natural Science Foundation of China [11375024, 11522539, 11505158, 11475015, 11475227]
- Spanish Ministerio de Economia y Competitividad and European FEDER funds [FIS2014-51948-C2-1-P, SEV-2014-0398]
- Generalitat Valenciana in the program Prometeo [II-2014/068]
- China Postdoctoral Science Foundation [2015M582197]
- Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y5KF151CJ1]
We present results for five reactions, Lambda(b) -> J/psi K(-)p, Lambda(b) -> J/psi eta Lambda, Lambda(b) -> J/psi pi(-)p, Lambda(b) -> J/psi K-0 Lambda and Xi(-)(b) -> J/psi K-Lambda, where combining information from the meson baryon interaction, using the chiral unitary approach, and predictions made for molecular states of hidden charm, with or without strangeness, we can evaluate invariant mass distributions for the light meson baryon states, and for those of J/psi p or J/psi Lambda. We show that with the present available information, in all of these reactions one finds peaks where the pentaquark states show up. In the Lambda(b) -> J/psi K(-)p, and Lambda(b) -> J/psi pi(-)p reactions we show that the results obtained from our study are compatible with present experimental observations. (C) 2016 Elsevier B.V. All rights reserved.
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