| Article | |
| Report number | arXiv:2208.02669 |
| Title | NNLO Photon Production with Realistic Photon Isolation |
| Author(s) | Schuermann, Robin (Zurich U.) ; Chen, Xuan (Karlsruhe U., ITP ; KIT, Karlsruhe, IAP) ; Gehrmann, Thomas (Zurich U.) ; Glover, E.W.N. (Durham U., IPPP) ; Höfer, Marius (Munich U., ASC) ; Huss, Alexander (CERN) |
| Publication | 2022-10-20 |
| Imprint | 2022-08-04 |
| Number of pages | 11 |
| In: | PoS LL2022 (2022) 034 |
| In: | 16th DESY Workshop on Elementary Particle Physics: Loops and Legs in Quantum Field Theory 2022, Ettal, Germany, 25 - 30 Apr 2022, pp.034 |
| DOI | 10.22323/1.416.0034 |
| Subject category | hep-ph ; Particle Physics - Phenomenology |
| Abstract | Isolated photon production at hadron colliders proceeds via direct production and fragmentation processes. Theory predictions for the isolated photon and photon-plus-jet cross section often impose idealised photon isolation criteria, eliminating the fragmentation contribution and introducing a systematic uncertainty in the comparison to data. We present NNLO predictions for the photon-plus-jet cross section with the experimental isolation including both, direct and fragmentation contributions. Predictions with two different parton-to-photon fragmentation functions are compared, allowing for an estimation of the uncertainty stemming from the only loosely constrained photon fragmentation functions. |
| Copyright/License | publication: © 2022-2024 The author(s) (License: CC-BY-NC-ND-4.0) preprint: (License: CC BY 4.0) |
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