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2023 (English)In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 108, no 1, article id 012022Article in journal (Refereed) Published
Abstract [en]
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.
Place, publisher, year, edition, pages
American Physical Society, 2023
National Category
Subatomic Physics
Identifiers
urn:nbn:se:uu:diva-516029 (URN)10.1103/PhysRevD.108.012022 (DOI)001055270000001 ()
Funder
Swedish Research CouncilEU, European Research CouncilEU, Horizon 2020Australian Research CouncilCERNDanish National Research FoundationThe Research Council of NorwayWallenberg FoundationsEuropean Regional Development Fund (ERDF)German Research Foundation (DFG)
Note
For complete list of authors see http://dx.doi.org/10.1103/PhysRevD.108.012022
Title in Web of Science: 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 p s=13 TeV with the ATLAS experiment
2023-11-172023-11-172023-11-17Bibliographically approved