Studying the P_c(4450) resonance in J/psi photoproduction off protons

Abstract

A resonance-like 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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• Hidden-charm pentaquarks and their hidden-bottom and $B_c$-like partner states
• Nucleon Resonances with Hidden Charm in $\gamma p$ reactions
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• Confronting pentaquark photoproduction with new LHCb observations
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• Light-Meson Spectroscopy at GlueX
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• $J/\psi N$ interactions revisited and ${\Lambda }_b^0\to J/\psi K^{-}({\pi }^{-})p$ decays
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• Studying the Pc(4450) resonance in J/psi photoproduction off protons
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• Searches for Exotic Hadrons at GlueX
• Heavy Quarkonium Production at Threshold: from JLab to EIC
• Measurement of the near-threshold J$/\psi$ photoproduction cross section with the CLAS12 experiment
• Pentaquark photoproduction
• The GlueX Experiment: Recent Results and Future Plans
• Analysis of the hidden-charm pentaquark candidates in the $J/\psi p$ mass spectrum with QCD sum rules
• Pentaquark states with hidden charm
• Electromagnetic couplings of pentaquarks