${\eta }_c$ production in photon - induced interactions at the LHC

Abstract

In this paper we investigate the ${\eta }_c$ production by photon - photon and photon - hadron interactions in $pp$ and $pA$ collisions at the LHC energies. The inclusive and diffractive contributions for the ${\eta }_c$ photoproduction are estimated using the nonrelativistic quantum chromodynamics (NRQCD) formalism. We estimate the rapidity and transverse momentum distributions for the ${\eta }_c$ photoproduction in hadronic collisions at the LHC and present our estimate for the total cross sections at the Run 2 energies. A comparison with the predictions for the exclusive ${\eta }_c$ photoproduction, which is a direct probe of the Odderon, also is presented.

9 pages, 5 figures, 1 table. arXiv admin note: text overlap with arXiv:1708.01498

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• Inclusive diffractive ${\eta }_{\mathrm{c}}$ production in pp, pA and AA modes at the LHC
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• Searching for the Odderon in the diffractive $f_2(1270)$ photoproduction at $pA$ collisions