Počet záznamů: 1
Observation of single-top-quark production in association with a photon using the ATLAS detector
- 1.0579126 - FZÚ 2024 RIV US eng J - Článek v odborném periodiku
Aad, G. - Abbott, B. - Abbott, D.C. - Chudoba, Jiří - Hejbal, Jiří - 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 2899 autorů
Observation of single-top-quark production in association with a photon using the ATLAS detector.
Physical Review Letters. Roč. 131, č. 18 (2023), č. článku 181901. ISSN 0031-9007. E-ISSN 1079-7114
Výzkumná infrastruktura: CERN-CZ III - 90240
Institucionální podpora: RVO:68378271
Klíčová slova: ATLAS * quantum chromodynamics: perturbation theory * acceptance * photon: transverse momentum
Obor OECD: Particles and field physics
Impakt faktor: 8.1, rok: 2023
Způsob publikování: Open access
This Letter reports the observation of single top quarks produced together with a photon, which directly probes the electroweak coupling of the top quark. The analysis uses 139 fb-1 of 13 TeV proton-proton collision data collected with the ATLAS detector at the Large Hadron Collider. Requiring a photon with transverse momentum larger than 20 GeV and within the detector acceptance, the fiducial cross section is measured to be 688±23(stat) -71+75(syst) fb, to be compared with the standard model prediction of 515-42+36 fb at next-to-leading order in QCD.
Trvalý link: https://hdl.handle.net/11104/0347995
File Download Size Commentary Version Access 0579126.pdf 0 49.6 MB CC Licence Publisher’s postprint open-access
Počet záznamů: 1