Cross-section measurements for the production of a Z boson in association with high-transverse-momentum jets in pp collisions at $ \sqrt{s} $ = 13 TeV with the ATLAS detector

• Published in: The journal of high energy physics 2023, Vol.6
• Main Authors: Aad, G, Abbott, B, Abbott, D.C, Abeling, K, Abidi, S.H, Aboulhorma, A, Abramowicz, H, Abreu, H, Abulaiti, Y, Abusleme Hoffman, A.C, Acharya, B.S, Achkar, B, Adam, L, Adam Bourdarios, C, Adamczyk, L, Adamek, L, Addepalli, S.V, Adelman, J, Adiguzel, A, Adorni, S, Adye, T, Affolder, A.A, Afik, Y, Agaras, M.N, Agarwala, J, Aggarwal, A, Agheorghiesei, C, Aguilar-Saavedra, J.A, Ahmad, A, Ahmadov, F, Ahmed, W.S, Ai, X, Aielli, G, Aizenberg, I, Akbiyik, M, Åkesson, T.P. A, Akimov, A.V, Al Khoury, K, Alberghi, G.L, Albert, J, Albicocco, P, Alconada Verzini, M.J, Alderweireldt, S, Aleksa, M, Aleksandrov, I.N, Alexa, C, Alexopoulos, T, Alfonsi, A, Alfonsi, F, Alhroob, M, Ali, B, Ali, S, Aliev, M, Alimonti, G, Allaire, C, Allbrooke, B.M. M, Allport, P.P, Aloisio, A, Alonso, F, Alpigiani, C, Alunno Camelia, E, Alvarez Estevez, M, Alviggi, M.G, Amaral Coutinho, Y, Ambler, A, Amelung, C, Ames, C.G, Amidei, D, Amor dos Santos, S.P, Amoroso, S, Amos, K.R, Amrouche, C.S, Ananiev, V, Anastopoulos, C, Andari, N, Andeen, T, Anders, J.K, Andrean, S.Y, Andreazza, A, Angelidakis, S, Angerami, A, Anisenkov, A.V, Annovi, A, Antel, C, Anthony, M.T, Antipov, E, Antonelli, M, Antrim, D.J. A, Anulli, F, Aoki, M, Aparisi Pozo, J.A, Aparo, M.A, Aperio Bella, L, Appelt, C, Aranzabal, N, Araujo Ferraz, V, Arcangeletti, C, Arce, A.T. H, Arena, E, Arguin, J-F
• Format: Article
• Language: English
• Subjects: High Energy Physics - Experiment; Physics
• ISSN: 1126-6708; 1029-8479
• DOI: 10.1007/JHEP06(2023)080

Cross-section measurements for a Z boson produced in association with high-transverse-momentum jets (p$_{T}$ ≥ 100 GeV) and decaying into a charged-lepton pair (e$^{+}$e$^{−}$, μ$^{+}$μ$^{−}$) are presented. The measurements are performed using proton–proton collisions at $ \sqrt{s} $ = 13 TeV corresponding to an integrated luminosity of 139 fb$^{−1}$ collected by the ATLAS experiment at the LHC. Measurements of angular correlations between the Z boson and the closest jet are performed in events with at least one jet with p$_{T}$ ≥ 500 GeV. Event topologies of particular interest are the collinear emission of a Z boson in dijet events and a boosted Z boson recoiling against a jet. Fiducial cross sections are compared with state-of-the-art theoretical predictions. The data are found to agree with next-to-next-to-leading-order predictions by NNLOjet and with the next-to-leading-order multi-leg generators MadGraph5_aMC@NLO and Sherpa.[graphic not available: see fulltext]