$\eta_{Q}$ meson photoproduction in ultrarelativistic heavy ion collisions
| Autor: | Yu, Gong-Ming, Zhao, Gao-Gao, Bai, Zhen, Cai, Yan-Bing, Yang, Hai-Tao, Wang, Jian-Song |
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| Rok vydání: | 2017 |
| Předmět: | |
| Zdroj: | Adv. High Energy Phys. 2017, 2379319 (2017) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1155/2017/2379319 |
| Popis: | The transverse momentum distributions for inclusive $\eta_{c,b}$ 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. Comment: 11 pages, 2 figures |
| Databáze: | arXiv |
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