Çakır, Affan2024-04-192024-04-192023-11-022470-00292470-0010https://hdl.handle.net/11411/5276https://doi.org/10.1103/PhysRevD.108.012022We 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.eninfo:eu-repo/semantics/openAccessSCATTERINGArticle2-s2.0-8517365185410.1103/PhysRevD.108.012022Q1WOS:001055270000001