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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 ▫$\sqrt s$▫ = 13 TeV with the ATLAS experiment
    Aad, Georges ...
    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.
    Source: Physical review. D. [Elektronski vir]. - ISSN 2470-0029 (Vol. 108, iss. 1, Jul. 2023, str. 1-32)
    Type of material - e-article ; adult, serious
    Publish date - 2023
    Language - english
    COBISS.SI-ID - 164846083

    Link(s):

    https://journals.aps.org/prd/abstract/10.1103/PhysRevD.108.012022
    DOI

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