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arXiv · 1708.05961

$η_{Q}$ meson photoproduction in ultrarelativistic heavy ion collisions

Gong-Ming Yu·Gao-Gao Zhao·Zhen Bai·Yan-Bing Cai·Hai-Tao Yang·Jian-Song Wang
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Abstract

The transverse momentum distributions for inclusive $η_{c,b}$ meson described by gluon-gluon interactions from photoproduction processes in relativistic heavy ion collisions are calculated. We considered the color singlet (CS) and color octet (CO) components with the framework of non-relativistic Quantum Chromodynamics (NRQCD) into the production of heavy quarkonium. The phenomenological values of the matrix elements for the color-singlet and color-octet components give the main contribution to the production of heavy quarkonium from the gluon-gluon interaction caused by the emission of additional gluon in the initial state. The numerical results indicate that the contribution of photoproduction processes cannot be negligible for mid-rapidity in p-p and Pb-Pb collisions at the Large Hadron Collider (LHC) energies.

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Gong-Ming Yu, Gao-Gao Zhao, Zhen Bai, Yan-Bing Cai, Hai-Tao Yang, Jian-Song Wang. 2018-01-03. $η_{Q}$ meson photoproduction in ultrarelativistic heavy ion collisions. https://doi.org/10.1155/2017%2F2379319

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