| Article | |
| Report number | arXiv:1907.06471 ; CERN-TH-2019-107 ; IPPP/19/53 ; LTH 1209 |
| Title | Towards a determination of the low $x$ gluon via exclusive $J/\psi$ production |
| Author(s) | Flett, C.A. (Liverpool U., Dept. Math.) ; Jones, S.P. (CERN) ; Martin, A.D. (Durham U., IPPP) ; Ryskin, M.G. (Durham U., IPPP ; St. Petersburg, INP) ; Teubner, T. (Liverpool U., Dept. Math.) |
| Publication | SISSA, 2019-07-03 |
| Imprint | 2019-07-15 |
| Number of pages | 6 |
| Note | 5 pages, 5 figures. Proceedings of the XXVII International Workshop on Deep-Inelastic Scattering and Related Subjects (DIS2019), submitted to PoS |
| In: | PoS DIS2019 (2019) 053 |
| In: | The XXVII International Workshop on Deep Inelastic Scattering and Related Subjects, Turin, Italy, 8 - 12 Apr 2019, pp.053 |
| DOI | 10.22323/1.352.0053 |
| Subject category | hep-ph ; Particle Physics - Phenomenology |
| Abstract | We discuss how the stability of the theoretical prediction for exclusive $J/\psi$ photoproduction has been improved through a systematic taming of the known $\overline{\text{MS}}$ coefficient functions by accounting for a formally power suppressed, but numerically significant, correction encoded within a $Q_0$ cut. The phenomenological implications of this will be emphasised meaning, ultimately, the possibility to include the exclusive data into a global fitter framework to provide constraints on the small $x$ gluon. |
| Copyright/License | preprint: (License: CC-BY-4.0) publication: (License: CC-BY-NC-ND-4.0) © The authors |
Corresponding record in: Inspire
Record created 2019-07-18, last modified 2023-03-14