Production of vector mesons in pentaquark states resonance channel in $p$-$A$ ultraperipheral collisions

Abstract

Ultraperipheral collisions (UPCs) of protons and nuclei are important for the study of the photoproduction of vector mesons and exotic states. The photoproduction of vector mesons in the pentaquark resonance channel in $p\mbox{-}Au$ UPCs at the Relative Heavy Ion Collider (RHIC) and $p$-$Pb$ UPCs at the Large Hadron Collider (LHC) is investigated by employing STARlight package. The cross sections of vector mesons via pentaquark state resonances channel are obtained using effective Lagrangian method. The pseudo-rapidity and rapidity distributions of $J/\psi$ and ${\rm Y}(1S)$ are given for $p\mbox{-}Au$ UPCs at the RHIC and $p$-$Pb$ at the LHC. It is found that the RHIC is a better platform for discovering the pentaquark states than the LHC. Moreover, $P_b(11080)$ is easier to identify than $P_c(4312)$ because the background of ${\rm Y}(1S)$ is weaker than $J/\psi$ in the $t$-channel at the RHIC.

9 pages, 5 figures

References in corpus (11)

• Observation of a narrow pentaquark state, $P_c(4312{)}^{+}$, and of two-peak structure of the $P_c(4450{)}^{+}$
• The Physics of Ultraperipheral Collisions at the LHC
• Threshold cusps and triangle singularities in hadronic reactions
• Emergence of a complete heavy-quark spin symmetry multiplet: seven molecular pentaquarks in light of the latest LHCb analysis
• Strong LHCb evidence supporting the existence of the hidden-charm molecular pentaquarks
• Study of $P_c(4457)$, $P_c(4440)$, and $P_c(4312)$ in a quasipotential Bethe-Salpeter equation approach
• Isospin breaking decays as a diagnosis of the hadronic molecular structure of the $P_c(4457)$
• Interpretation of the Narrow $J/\psi p$ Peaks in ${\Lambda }_b\to J/\psi p{K}^{-}$ Decay in the Compact Diquark Model
• Possibility to study pentaquark states $P_c(4312),P_c(4440)$, and $P_c(4457)$ in $\gamma p\to J/\psi p$ reaction
• Structure and decays of hidden heavy pentaquarks
• Photoproduction of massive gauge bosons in $pp$, $pPb$ and $PbPb$ collisions

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• Probing charmonium-like XYZ states in hadron-hadron ultraperipheral collisions and electron-proton scattering
• Near threshold heavy vector meson photoproduction at LHC and EicC
• Exclusive Charmonium Production at the Electron-ion collider in China
• Production of the bottomonium-like states $Z_b$ states at $e$-$h$ and ultraperipheral $h$-$h$ collisions