We study the production of $c$ and $b$ quarks in photon-induced processes as a probe of gluon saturation, with a focus on the high-energy region accessible in ultra-peripheral collisions (UPCs) at the LHC. We compare predictions for inclusive and diffractive heavy quark production with and without saturation effects by using the nonlinear Balitsky--Kovchegov and the linear Balitsky--Fadin--Kuraev--Lipatov equations for the evolution of the dipole amplitude. The percentage of coherent diffractive events is predicted to be $~20\%$ in the saturation model, which is approximately twice as large as predictions based on parton distribution functions and shadowing. This indicates that measurements of diffractive heavy quark production in UPCs may provide a sensitive probe for distinguishing linear and nonlinear regimes of quantum chromodynamics.
In this contribution we predict the possibility of detecting signatures of the long-sought saturation in ultraperipheral heavy-ion collisions at currently accessible energies of the LHC. To probe these effects, we study incoherent vector meson production, which is sensitive to fluctuations in the partonic structure of...
A. Ridziková, J. Čepila, J. G. Contreras et al.· Proceedings of the Internati...· 0 citations
The increasing precision of measurements at the Large Hadron Collider requires a detailed understanding of all contributions to electroweak boson production. We estimate the impact of single-diffractive W and Z production on precision observables at $\sqrt{s}=5$, 7, 8, and 13 TeV. The non-diffractive baseline is calcul...
Y. Harris, Matthias Schott, Chen Wang· 0 citations
We have implemented the recent extension of the string+${}^3P_0$ model of spin-dependent hadronization that includes the production of spin-$1/2$ baryons in the Pythia event generator for the simulation of deep inelastic scattering (DIS). The implementation in Pythia is performed by extending the StringSpinner package,...
We present a theoretical framework for jet fragmentation in heavy-ion collisions based on the resummation of large energy logarithms. Exploiting the hierarchy of scales characteristic of jet quenching, we show that the jet function obeys the Banfi-Marchesini-Smye evolution equation, with medium-induced energy loss and...
P. Caucal, Kevin Eisenberg, Y. Mehtar-Tani· 2 citations· ⚡1
Momentum transfer distributions $d\sigma/dt$ in diffractive electroproduction of heavy quarkonia on nuclear targets are studied within a rigorous quantum-mechanical approach based on the light-front Green's function formalism. Such a formalism allows to include naturally the higher-twist and leading-twist shadowing cor...
J. Obertova, Jan Nemcik· Proceedings of the Internati...· 0 citations
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
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