2017/01/01 by Gong-Ming Yu, Gao-Gao Zhao, Zhen Bai +3
Physics and Astronomy · #Collider #Gluon #Hadron #Heavy ion #High-Energy Particle Collisions Research #Meson #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quarkonium #Relativistic Heavy Ion Collider #hep-ph
paper · pdf · doi:10.1155/2017/2379319
published as Adv. High Energy Phys. 2017, 2379319 (2017) · 11 pages, 2 figures
openalex publication_date 2017/01/01 · openalex created_date 2017/08/31 · arxiv created 2018/01/03 · arxiv updated 2018/01/04 · openalex updated_date 2026/08/05
The transverse momentum distributions for inclusive <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" id="M2"><mml:mrow><mml:msub><mml:mrow><mml:mi>η</mml:mi></mml:mrow><mml:mrow><mml:mi>c</mml:mi><mml:mo>,</mml:mo><mml:mi>b</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:math> 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.