Production of vector mesons in pentaquark state resonance channel in p-A ultraperipheral collisions *

Abstract

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- UPCs at the Relative Heavy Ion Collider (RHIC) and p- UPCs at the Large Hadron Collider (LHC) is investigated by employing the STARlight package. The cross sections of vector mesons via the pentaquark state resonance channel are obtained using the effective Lagrangian method. The pseudo-rapidity and rapidity distributions of and are given for p- UPCs at the RHIC and p- UPCs at the LHC. It is found that the RHIC is a better platform for discovering pentaquark states than the LHC. Moreover, is easier to identify than because the background of is weaker than that of in the t-channel at the RHIC.