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arXiv · 1404.6101

Comparison of $ψ(2S)$ and $J/ψ$ photoproduction cross sections in Pb-Pb ultraperipheral collisions at the LHC

V. Guzey·M. Zhalov
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Abstract

Within the leading logarithmic approximation of perturbative QCD and the leading twist approach to nuclear shadowing, we compare the cross sections of photoproduction of $J/ψ$ and $ψ(2S)$ mesons on nuclei in Pb-Pb UPCs in the LHC kinematics. We find that the nuclear suppression of these cross sections due to the nuclear gluon shadowing is large and rather similar in the $J/ψ$ and $ψ(2S)$ cases.

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V. Guzey, M. Zhalov. 2014-04-24. Comparison of $ψ(2S)$ and $J/ψ$ photoproduction cross sections in Pb-Pb ultraperipheral collisions at the LHC. https://arxiv.org/abs/1404.6101

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