The $ J/\psi$ production in PbPb ultraperipheral collisions at $\sqrt{s_{NN}}=2.76\mathrm{TeV}$
High Energy Physics - Phenomenology
2016-05-20 v2
Abstract
We calculate the coherent and incoherent production of in PbPb ultraperipheral collisions. The production of in ultraperipheral collsions is product of photon flux distributions and cross section of photon-nucleus scatterings. The distributions of photon flux is computed in light-cone perturbation theory and the cross section of photon-nucleus scatterings is calculated in dipole model, we assume that the two gluons exchange contribution is the coherent cross section and the large- contribution is the incoherent cross section in photon-nucleus scattering. The numerical result of the rapidity distributions of production in PbPb ultraperipheral collisions at TeV are compared with the experimental data measured by the ALICE collaboration.
Keywords
Cite
@article{arxiv.1512.08105,
title = {The $ J/\psi$ production in PbPb ultraperipheral collisions at $\sqrt{s_{NN}}=2.76\mathrm{TeV}$},
author = {Ya-ping Xie and Xurong Chen},
journal= {arXiv preprint arXiv:1512.08105},
year = {2016}
}