ηQ Meson Photoproduction in Ultrarelativistic Heavy Ion Collisions
| Autor: | Gong-Ming Yu, Gao-Gao Zhao, Zhen Bai, Yan-Bing Cai, Hai-Tao Yang, Jian-Song Wang |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: | |
| Zdroj: | Advances in High Energy Physics, Vol 2017 (2017) |
| Druh dokumentu: | article |
| ISSN: | 1687-7357 1687-7365 |
| DOI: | 10.1155/2017/2379319 |
| Popis: | 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. |
| Databáze: | Directory of Open Access Journals |
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