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arXiv · 1911.10886

Photoproduction of pentaquarks states at the LHC

V. P. Goncalves·M. M. Jaime
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Abstract

In this paper we investigate the production of pentaquark states in the photon -- proton interactions present in hadronic collisions at the RHIC and LHC. We consider two phenomenological models for the $J/Ψ$ photoproduction that consider the presence of the $P_c(4312)$, $P_c(4440)$ and $P_c(4457)$ resonances in the $s$ -- channel of the $γp \rightarrow J/Ψp$ reaction. The rapidity distribution is estimated for $pA$ collisions at the RHIC and LHC. Predictions for $pPb$, $Pb \, Ar$ and $Pb \,He$ fixed -- target collisions at the LHC are also presented. We demonstrate that the experimental analysis of the $J/Ψ$ photoproduction in fixed -- target collisions can provide complementary and independent checks on these states, and help to understand their underlying nature.

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V. P. Goncalves, M. M. Jaime. 2020-05-13. Photoproduction of pentaquarks states at the LHC. https://doi.org/10.1016/j.physletb.2020.135447

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