Investigating the impact of the gluon saturation effects on the momentum transfer distributions for the exclusive vector meson photoproduction in hadronic collisions

Abstract

The exclusive vector meson production cross section is one of the most promising observables to probe the high energy regime of the QCD dynamics. In particular, the squared momentum transfer ($t$) distributions are an important source of information about the spatial distribution of the gluons in the hadron and about fluctuations of the color fields. In this paper we complement previous studies on exclusive vector meson photoproduction in hadronic collisions presenting a comprehensive analysis of the $t$ - spectrum measured in exclusive $\rho$, $\varphi$ and $J/\Psi$ photoproduction in $pp$ and $PbPb$ collisions at the LHC. We compute the differential cross sections taking into account gluon saturation effects and compare the predictions with those obtained in the linear regime of the QCD dynamics. Our results show that gluon saturation suppresses the magnitude of the cross sections and shifts the position of the dips towards smaller values of $t$.

7 pages, 5 figures. arXiv admin note: text overlap with arXiv:1612.06254

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• The Physics of Ultraperipheral Collisions at the LHC
• LHC Forward Physics
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• Exclusive photoproduction of $J/\psi$ in proton-proton and proton-antiproton scattering
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Cited by in corpus (18)

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• ${\eta }_c$ production in photon - induced interactions at the LHC
• Diffractive deeply inelastic scattering in future electron-ion colliders
• Inclusive heavy quark photoproduction in $pp$, $pPb$ and $PbPb$ collisions at Run 2 LHC energies
• Exclusive vector meson production with a leading neutron in photon - hadron interactions at hadronic colliders
• Exclusive and diffractive ${\mu }^{+}{\mu }^{-}$ production in $pp$ collisions at the LHC
• Exclusive vector meson production in electron-ion collisions at the EIC, LHeC and FCC-$eh$
• Exclusive processes in $ep$ collisions at the EIC and LHeC: A closer look on the predictions of saturation models
• Coherent and incoherent $J/\Psi$ photoproduction in $PbPb$ collisions at the LHC, HE -- LHC and FCC
• Diffractive quarkonium photoproduction in $pp$ and $pA$ collisions at the LHC: Predictions of the Resolved Pomeron model for the Run 2 energies
• Exclusive vector meson photoproduction in fixed - target collisions at the LHC
• Investigating the Transverse Single Spin Asymmetry in the Inelastic $J/\Psi$ photoproduction in $p^{\uparrow }p$ and $p^{\uparrow }A$ collisions
• Exclusive $\rho$ and $J/\Psi$ photoproduction in ultraperipheral $pO$ and $OO$ collisions at energies available at the CERN Large Hadron Collider
• Single inclusive jet photoproduction at very forward rapidities in $pp$ and $pPb$ collisions at the LHC
• Probing the BFKL dynamics in the Vector Meson Photoproduction at large -- $t$ in $pPb$ collisions at the CERN LHC
• Exclusive vector meson photoproduction with a leading baryon in photon - hadron interactions at hadronic colliders
• Probing Saturation Physics in the Real Compton Scattering at Ultraperipheral $pPb$ Collisions