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Measurements of the production cross-section for a Z boson in association with b- or c-jets in proton-proton collisions at √s = 13 TeV with the ATLAS detector

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This paper presents a measurement of the production cross-section of a Z boson in association with b- or c-jets, in proton-proton collisions at √s=13 TeV with the ATLAS experiment at the Large Hadron Collider using data corresponding to an integrated luminosity of 140 fb -1. Inclusive and differenti...

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Main Authors: Aad, Georges (Author) , Ackermann, Anke (Author) , Baltes, Lisa Marie (Author) , Bartels, Falk (Author) , Rio, Fernando del (Author) , Dittmeier, Sebastian (Author) , Dunford, Monica (Author) , Franchino, Silvia (Author) , Junkermann, Thomas (Author) , Mkrtchyan, Tigran (Author) , Ott, Philipp (Author) , Rassloff, Damir Fabrice (Author) , Sanfilippo, Lorenzo (Author) , Sauer, Christof (Author) , Schöning, André (Author) , Schultz-Coulon, Hans-Christian (Author) , Sothilingam, Varsiha (Author) , Stamen, Rainer (Author) , Starovoitov, Pavel (Author) , Vigani, Luigi (Author) , Weber, Sebastian (Author) , Wessels, Martin (Author) , Zinßer, Joachim (Author)
Corporate Author: ATLAS Collaboration (Author)
Format: Article (Journal)
Language:English
Published: 27 September 2024
In: The European physical journal. C, Particles and fields
Year: 2024, Volume: 84, Issue: 9, Pages: 1-40
ISSN:1434-6052
DOI:10.1140/epjc/s10052-024-13159-w
Online Access:Verlag, kostenfrei, Volltext: https://doi.org/10.1140/epjc/s10052-024-13159-w
Verlag, kostenfrei, Volltext: https://link.springer.com/article/10.1140/epjc/s10052-024-13159-w
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Author Notes:ATLAS Collaboration
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Summary:This paper presents a measurement of the production cross-section of a Z boson in association with b- or c-jets, in proton-proton collisions at √s=13 TeV with the ATLAS experiment at the Large Hadron Collider using data corresponding to an integrated luminosity of 140 fb -1. Inclusive and differential cross-sections are measured for events containing a Z boson decaying into electrons or muons and produced in association with at least one b-jet, at least one c-jet, or at least two b-jets with transverse momentum pT > 20 GeV and rapidity |y| < 2.5. Predictions from several Monte Carlo generators based on next-to-leading-order matrix elements interfaced with a parton-shower simulation, with different choices of flavour schemes for initial-state partons, are compared with the measured cross-sections. The results are also compared with novel predictions, based on infrared and collinear safe jet flavour dressing algorithms. Selected Z+ ≥ 1 c-jet observables, optimized for sensitivity to intrinsic-charm, are compared with benchmark models with different intrinsic-charm fractions.
Item Description:ATLAS Collaboration: G. Aad, A. Ackermann, L.M. Baltes, F. Bartels, F. Del Rio, S.J. Dittmeier, M. Dunford, S. Franchino, T. Junkermann, T. Mkrtchyan, P.S. Ott, D.F. Rassloff, L. Sanfilippo, C. Sauer, A. Schoening, H.-C. Schultz-Coulon, V. Sothilingam, R. Stamen, P. Starovoitov, L. Vigani, S. M. Weber, M. Wessels, J. Zinsser [und 2882 weitere]
Gesehen am 08.07.2025
Physical Description:Online Resource
ISSN:1434-6052
DOI:10.1140/epjc/s10052-024-13159-w

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