Studying thePc(4450)resonance inJ/ψphotoproduction off protons
Physical review. D/Physical review. D.2016Vol. 94(3)
Citations Over TimeTop 10% of 2016 papers
A. N. Hiller Blin, C. Fernández-Ramírez, Andrew W. Jackura, V. Mathieu, Viktor Mokeev, A. Pilloni, A.P. Szczepaniak
Abstract
A resonancelike structure, the ${P}_{c}(4450)$, has recently been observed in the $J/\ensuremath{\psi}p$ spectrum by the LHCb Collaboration. We discuss the feasibility of detecting this structure in $J/\ensuremath{\psi}$ 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 $J/\ensuremath{\psi}p$. 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 $J/\ensuremath{\psi}$ production threshold and shed light on the ${P}_{c}(4450)$ resonance in the future photoproduction measurements.
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