Measurement of the production of a W boson in association with a charmed hadron in pp collisions at √s = 13 TeV with the ATLAS detector

0578301 - FZÚ 2024 RIV US eng J - Článek v odborném periodiku
Aad, G. - Abbott, B. - Abbott, D.C. - Chudoba, Jiří - Federičová, Pavla - Hejbal, Jiří - Jačka, Petr - Kepka, Oldřich - Kroll, Jiří - Kupčo, Alexander - Latoňová, Věra - Lokajíček, Miloš - Lysák, Roman - Marčišovský, Michal - Mikeštíková, Marcela - Němeček, Stanislav - Šícho, Petr - Staroba, Pavel - Svatoš, Michal - Taševský, Marek … celkem 2897 autorů
Measurement of the production of a W boson in association with a charmed hadron in pp collisions at √s = 13 TeV with the ATLAS detector.
Physical Review D. Roč. 108, č. 3 (2023), č. článku 032012. ISSN 2470-0010. E-ISSN 2470-0029
Výzkumná infrastruktura: CERN-CZ III - 90240
Institucionální podpora: RVO:68378271
Klíčová slova: charm: associated production * W: leptonic decay * parton: distribution function
Obor OECD: Particles and field physics
Impakt faktor: 5, rok: 2022
Způsob publikování: Open access

The production of a WW boson in association with a single charm quark is studied using 140 fb−1fb−1 of s=13 TeVs ​=13TeV proton-proton collision data collected with the ATLAS detector at the Large Hadron Collider. The charm quark is tagged by a charmed hadron, reconstructed with a secondary-vertex fit. The WW boson is reconstructed from an electron/muon decay and the missing transverse momentum. The mesons reconstructed are D±→K∓π±π±D±→K∓π±π± and D∗±→D0π±→(K∓π±)π±D∗±→D0π±→(K∓π±)π±, where pT(e,μ)>30 GeVpT​(e,μ)>30GeV, ∣η(e,μ)∣<2.5∣η(e,μ)∣<2.5, pT(D)>8 GeVpT​(D)>8GeV, and ∣η(D)∣<2.2∣η(D)∣<2.2. The integrated and normalized differential cross-sections as a function of the pseudorapidity of the lepton from the WW boson decay, and of the transverse momentum of the meson, are extracted from the data using a profile likelihood fit.
Trvalý link: https://hdl.handle.net/11104/0347322