Production of the exclusive $γγ\rightarrow J/ψ+γ$ process in proton-proton ultraperipheral collisions
Fuente:
arXiv
Gespeichert in:
| Hauptverfasser: | , , , |
|---|---|
| Format: | Preprint |
| Veröffentlicht: |
2025
|
| Schlagworte: | |
| Online-Zugang: | |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| _version_ | 1866908588801261568 |
|---|---|
| author | Jia, Meng-Kun Jin, Xiao-Bo Liu, Kui-Yong Xu, Guang-Zhi |
| author_facet | Jia, Meng-Kun Jin, Xiao-Bo Liu, Kui-Yong Xu, Guang-Zhi |
| contents | In this work, we present a next-to-leading-order (NLO) study of $J/ψ+ γ$ production via photon-photon fusion in proton-proton ultraperipheral collisions (UPCs) at $\sqrt{s_{NN}} = 14$ TeV. The calculation is performed within the nonrelativistic Quantum Chromodynamics (NRQCD) framework, where we employ photon parton distribution functions derived from the proton's electric-dipole form factor (EDFF) and explicitly retain their dependence on the impact parameter $b$. Our calculation yields cross sections of $155$ fb at leading order and between $107.5$ fb and $130$ fb at NLO in $α_s$, demonstrating a moderate but manageable $α_s$ suppression. Despite this reduction, the process retains a sufficiently large cross section to be observable in future high-luminosity measurements. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_10318 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Production of the exclusive $γγ\rightarrow J/ψ+γ$ process in proton-proton ultraperipheral collisions Jia, Meng-Kun Jin, Xiao-Bo Liu, Kui-Yong Xu, Guang-Zhi High Energy Physics - Phenomenology In this work, we present a next-to-leading-order (NLO) study of $J/ψ+ γ$ production via photon-photon fusion in proton-proton ultraperipheral collisions (UPCs) at $\sqrt{s_{NN}} = 14$ TeV. The calculation is performed within the nonrelativistic Quantum Chromodynamics (NRQCD) framework, where we employ photon parton distribution functions derived from the proton's electric-dipole form factor (EDFF) and explicitly retain their dependence on the impact parameter $b$. Our calculation yields cross sections of $155$ fb at leading order and between $107.5$ fb and $130$ fb at NLO in $α_s$, demonstrating a moderate but manageable $α_s$ suppression. Despite this reduction, the process retains a sufficiently large cross section to be observable in future high-luminosity measurements. |
| title | Production of the exclusive $γγ\rightarrow J/ψ+γ$ process in proton-proton ultraperipheral collisions |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2510.10318 |