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 - Článek v odborném periodiku
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 … celkem 2887 autorů
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
Grant CEP: GA MŠMT(CZ) LTT17018
Výzkumná infrastruktura: CERN-CZ II - 90104
Institucionální podpora: RVO:68378271
Klíčová slova: ATLAS * CERN * Hadron-Hadron scattering (experiments) * photon production
Obor OECD: Particles and field physics
Impakt faktor: 6.376, rok: 2021
Způsob publikování: 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.

Trvalý link: http://hdl.handle.net/11104/0326551