We study the process of double parton scattering (DPS) associated with the photoproduction at a future Electron-Ion collider (EIC) and HERA. We show that in the case of the resolved photon the 1 to 2 processes lead, even at small transverse momenta of the hard processes , to the increase of the DPS by a factor of order 1.6 in the significant part of the phase space, relative to the predictions of the mean field based models . Moreover we study the kinematic region where direct photon contribution is dominant and show it s boundaries for charm and light quark jets. For charmed jets we see that the relevant region is $x_\gamma\ge 0.2-0.4$. This region is even enhanced if we consider the photoproduction on the nuclei.
We present the calculation for the open charm production in ultraperipheral collisions at the Large Hadron Collider. Predictions for $D^0$ photoproduction using the Generalized-Photon-Nucleus FONLL formalism are presented, extending previously developed framework for electron-proton and electron-nucleus collisions. Th...
A. Staśto, G. Innocenti, Matteo Cacciari· Proceedings of the Internati...· 0 citations
We consider the exclusive photoproduction of a π0γ pair with large invariant mass, as a promising channel to study the effects of gluon saturation. It has recently been demonstrated that this process is incompatible with a collinear factorisation approach in terms of generalised parton distributions (GPDs) at the leadi...
J. Yarwick· Proceedings of the Internati...· 0 citations
The photoproduction of J/Ψ is investigated in the coherent collisions at LHC energy (√s= 5.02 TeV), for distinct transverse momentum and centrality classes: ultra-peripheral collisions (UPC) and peripheral collisions across different event geometries. An application of the convolution between the photon flux and the ph...
Paulo Da Luz, Maria Beatriz De Leone Gay Ducati· Proceedings of the Internati...· 0 citations
Precise determination of the partonic structure of real photons has attracted renewed interest in view of ongoing studies of high-energy photon-induced processes in ultraperipheral collisions (UPCs) at the Large Hadron Collider (LHC) and the future Electron-Ion Collider (EIC). Despite being fundamental in their own rig...
M. Chithirasreemadam, V. Guzey, F. Hekhorn et al.· 0 citations
We report on our study of inclusive neutral-kaon photoproduction on the deuteron, $d(\gamma,K^0)YN$, for photon energies between 0.9 and 1.1 GeV. The calculation is performed in the impulse approximation, with the deuteron wave function generated from the Bonn One-Boson-Exchange-Potential in $q$-space (OBEPQ) within a...
Mutoharoh, A. Salam, T. Mart· 0 citations
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