In this paper we present a comprehensive analysis of exclusive vector meson photoproduction in pp, pP b and P bP b collisions at Run 2 LHC energies using the Color Dipole formalism. The rapidity distributions and total cross sections for the ρ, φ, J/Ψ, Ψ(2S) and Υ production are estimated considering the more recent phenomenological models for the dipole -proton scattering amplitude, which are based on the Color Glass Condensate formalism and are able to describe the inclusive and exclusive ep HERA data. Moreover, we also discuss the impact of the modelling of the vector meson wave functions on the predictions. The current theoretical uncertainty in the Color Dipole predictions is estimated and a comparison with the experimental results is performed.
We investigate the theoretical uncertainty of the predictions for the photoproduction of
and ϒ states in proton–nucleus and nucleus–nucleus collisions at the Large Hadron Collider (LHC) within the color dipole formalism. Predictions for the rapidity distributions are presented and the dependence on the meson wavefunction, heavy quark mass as well as the models for the dipole cross section are analyzed. We compare the theoretical results directly with recent data from the ALICE Collaboration on
production in pPb collisions at a centre-of-mass energy per nucleon pair of 5.02 TeV and in PbPb collisions at a centre-of-mass energy per nucleon pair of 2.76 TeV. Predictions are also performed for ϒ state in PbPb and pPb collisions at LHC energies, including the coherent and incoherent contributions.
In this work we analyze the theoretical uncertainties on the predictions for the photoproduction of light vector mesons in coherent pp, p A , and A A collisions at the CERN Large Hadron Collider energies using the color dipole approach. In particular, we present our predictions for the rapidity distribution for p° and < p photoproduction and perform an analysis on the uncertainties associated to the choice of vector meson wave function and the phenomenological models for the dipole cross section. Comparison is done with the recent ALICE analysis on coherent production of p° at 2.76 TeV in PbPb collisions.
In this paper we present a comprehensive analysis of the inclusive heavy quark photoproduction in pp, pP b and P bP b collisions at Run 2 LHC energies using the Color Dipole formalism. The rapidity distributions and total cross sections for the charm and bottom production are estimated considering the more recent phenomenological models for the dipole -proton scattering amplitude, which are based on the Color Glass Condensate formalism and are able to describe the inclusive and exclusive ep HERA data. Moreover, we present, by the first time, the predictions for the transverse momentum distributions of the D and B mesons produced in the photon -induced interactions.
A study on the prompt photon production within the QCD color dipole picture with emphasis in pp and p A collisions at the LHC energy regimes is performed. We present predictions for the differential cross section as a function of photon transverse momentum at different rapidity bins considering updated phenomenological color dipole models, which take into account the QCD gluon saturation physics. The results are directly compared to the recent experimental measurements provided by CMS and ATLAS Collaborations, showing a reasonable agreement in all rapidity bins with no free parameters. Special attention is given to the IPSAT model given its good description of the data in all rapidity bins from low-to highp T ranges. As a result, a freeparameter approach has succeeded in describing the LHC data for prompt photon production, while new predictions for the 13-TeV data is presented in view of new data to confirm such prospect.
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