Measurement of the production cross section of pairs of isolated photons in pp collisions at 13 TeV with the ATLAS detector

0551114 - FZÚ 2022 RIV DE eng J - Journal Article
Aad, G. - Abbott, B. - Abbott, D.C. - Chudoba, Jiří - Hejbal, Jiří - Hladík, Ondřej - Jačka, Petr - Kepka, Oldřich - Kroll, Jiří - Kupčo, Alexander - Latoňová, Věra - Lokajíček, Miloš - Lysák, Roman - Marčišovský, Michal - Mikeštíková, Marcela - Němeček, Stanislav - Penc, Ondřej - Šícho, Petr - Staroba, Pavel - Svatoš, Michal - Taševský, Marek … Total 2887 authors
Measurement of the production cross section of pairs of isolated photons in pp collisions at 13 TeV with the ATLAS detector.
Journal of High Energy Physics. Roč. 2021, č. 11 (2021), č. článku 169. ISSN 1029-8479. E-ISSN 1029-8479
R&D Projects: GA MŠMT(CZ) LTT17018
Research Infrastructure: CERN-CZ II - 90104
Institutional support: RVO:68378271
Keywords : ATLAS * CERN * Hadron-Hadron scattering (experiments) * photon production
OECD category: Particles and field physics
Impact factor: 6.376, year: 2021
Method of publishing: Open access

A measurement of prompt photon-pair production in proton-proton collisions at s sqrt{s} s ​ = 13 TeV is presented. The data were recorded by the ATLAS detector at the LHC with an integrated luminosity of 139 fb−1^{−1}−1. Events with two photons in the well-instrumented region of the detector are selected. The photons are required to be isolated and have a transverse momentum of pT,γ1(2) {p}_{mathrm{T}{,}_{gamma 1(2)}} pT,γ1(2)​​> 40 (30) GeV for the leading (sub-leading) photon. The differential cross sections as functions of several observables for the diphoton system are measured and compared with theoretical predictions from state-of-the-art Monte Carlo and fixed-order calculations.

Permanent Link: http://hdl.handle.net/11104/0326551