ηq meson photoproduction in ultrarelativistic heavy ion collisions

ηq meson photoproduction in ultrarelativistic heavy ion collisions

;Gong-Ming Yu;Gao-Gao Zhao;Zhen Bai;Yan-Bing Cai;Hai-Tao Yang;Jian-Song Wang
biotechnology reports (amsterdam, netherlands) 2017 Vol. 2017 pp. -
116
yu2017advancesq

Abstract

The transverse momentum distributions for inclusive ηc,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 within the framework of Nonrelativistic Quantum Chromodynamics (NRQCD) in 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 midrapidity in p-p and Pb-Pb collisions at the Large Hadron Collider (LHC) energies.

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146277
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10.1155/2017/2379319
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