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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

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We 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 i...

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Main Authors: Aad, Georges (Author) , Andrei, George Victor (Author) , Bartels, Falk (Author) , Bolz, Arthur (Author) , Czurylo, Marta (Author) , Dittmeier, Sebastian (Author) , Dunford, Monica (Author) , Franchino, Silvia (Author) , Klassen, Martin (Author) , Krishnan, Anjali (Author) , Mkrtchyan, Tigran (Author) , Napolitano, Fabrizio (Author) , Ott, Philipp (Author) , Rassloff, Damir Fabrice (Author) , Schöning, André (Author) , Schultz-Coulon, Hans-Christian (Author) , Spieker, Thomas (Author) , Stamen, Rainer (Author) , Starovoitov, Pavel (Author) , Vigani, Luigi (Author) , Weber, Sebastian (Author) , Wessels, Martin (Author) , Yue, Xiaoguang (Author)
Corporate Author: ATLAS Collaboration (Author)
Format: Article (Journal)
Language:English
Published: 1 July 2023
In: Physical review
Year: 2023, Volume: 108, Issue: 1, Pages: 1-32
ISSN:2470-0029
DOI:10.1103/PhysRevD.108.012022
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevD.108.012022
Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevD.108.012022
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Author Notes:G. Aad et al. (ATLAS Collaboration)
Description
Summary:We 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.
Item Description:ATLAS Collaboration: G. Aad, Andrei, F. Bartels, A.E. Bolz, M.M. Czurylo, S.J. Dittmeier, S. Franchino, M. Klassen, A. Krishnan, T. Mkrtchyan, F. Napolitano, P.S. Ott, D.F. Rassloff, A. Schoening, H-C. Schultz-Coulon, T.M. Spieker, R. Stamen, P. Starovoitov, L. Vigani, S.M. Weber, M. Wessels, X. Yue [und 2889 weitere]
Gesehen am 14.05.2024
Veröffentlicht am 31. Juli 2023
Physical Description:Online Resource
ISSN:2470-0029
DOI:10.1103/PhysRevD.108.012022

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