期刊
PHYSICAL REVIEW D
卷 94, 期 3, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.94.034002
关键词
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资金
- U.S. Department of Energy, Office of Science, Office of Nuclear Physics [DE-AC05-06OR23177, DE-FG0287ER40365]
- National Science Foundation [PHY-1415459, NSF-PHY-1205019]
- IU Collaborative Research Grant
- Spanish Ministerio de Economia y Competitividad (MINECO)
- European FEDER funds [FIS201451948-C2-2-P, SEV-2014-0398]
- Santiago Grisolia program of the Generalitat Valenciana
- Center for Exploration of Energy and Matter at Indiana University
A resonancelike structure, the P-c(4450), has recently been observed in the J/psi p spectrum by the LHCb Collaboration. We discuss the feasibility of detecting this structure in J/psi photoproduction in the CLAS12 experiment at JLab. We present a first estimate of the upper limit for the branching ratio of the P-c (4450) to J/psi p. Our estimates, which take into account the experimental resolution effects, predict that it will be possible to observe a sizable cross section close to the J/psi production threshold and shed light on the P-c(4450) resonance in the future photoproduction measurements.
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