Measurement of cross sections for production of a Z boson in association with a flavor-inclusive or doubly b-tagged large-radius jet in proton-proton collisions at √s = 13 TeV with the ATLAS experiment
journal contribution
posted on 2025-03-28, 10:57 authored by P Jackson, AXY Kong, JL Oliver, TA Ruggeri, AS Sharma, MJ White, V Jain, SP Swift, DM Gingrich, JL Pinfold, H Wang, O Cakir, H Duran Yildiz, S Kuday, I Turk Cakir, S Sultansoy, C Adam Bourdarios, M Belfkir, N Berger, F Costanza, A Cueto, O Dartsi, M Delmastro, L Di Ciaccio, L Franco, C Goy, T Guillemin, T Hryn’ova, S Jézéquel, I Koletsou, R Lafaye, J Levêque, N Lorenzo Martinez, L Portales, E Sauvan, I Wingerter-Seez, Y Abulaiti, DP Benjamin, VS Bhopatkar, S Chekanov, WH Hopkins, E Kourlitis, T LeCompte, J Love, J Metcalfe, AS Mete, A Paramonov, J Proudfoot, P Van Gemmeren, J Zhang, S Berlendis, E Cheu, CM Delitzsch, KA Johns, W Lampl, M LeBlanc, RE Lindley, P Loch, JP Rutherfoord, EW Varnes, H Zhou, Y Zhou, D Bakshi Gupta, B Burghgrave, K De, T Eifert, A Farbin, HK Hadavand, JD Little, N Ozturk, G Usai, A White, S Angelidakis, P Bellos, D Fassouliotis, I Gkialas, C Kourkoumelis, K Papageorgiou, T Alexopoulos, C Bakalis, N Benekos, EN Gazis, P Gkountoumis, C Kitsaki, A Koulouris, S Maltezos, C Paraskevopoulos, G Zacharis, T Andeen, CD Burton, K Choi, N Nikiforou, PUE Onyisi, H Potti, A Roy, M Unal, AF Webb, AJ Beddall, E Celebi, SA CetinWe present measurements of cross sections for production of a leptonically decaying Z boson in association with a large-radius jet in 13 TeV proton-proton collisions at the LHC, using 36 fb - 1 of data from the ATLAS detector. Integrated and differential cross sections are measured at particle level in both a flavor inclusive and a doubly b -tagged fiducial phase space. The large-radius jet mass and transverse momentum, its kinematic relationship to the Z boson, and the angular separation of b -tagged small-radius track jets within the large-radius jet are measured. This measurement constitutes an important test of perturbative quantum chromodynamics in kinematic and flavor configurations relevant to several Higgs boson and beyond-Standard-Model physics analyses. The results highlight issues with modeling of additional hadronic activity in the flavor-inclusive selection, and a distinction between flavor-number schemes in the b -tagged phase space.
Funding
STFC 2021 Particle Physics Review of Experiments and Experimental Consolidated Grant : STFC-SCIENCE AND TECHNOLOGY FACILITIES COUNCIL | ST/W000512/1
History
Publication status
- Published
File Version
- Published version
Journal
Physical Review DISSN
2470-0010Publisher
American Physical Society (APS)Publisher URL
External DOI
Issue
1Volume
108Article number
012022Department affiliated with
- Physics and Astronomy Publications
- Informatics Publications
Institution
University of SussexFull text available
- Yes
Peer reviewed?
- Yes
