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@ARTICLE{Aad:613132,
      author       = {Aad, Georges and others},
      collaboration = {{ATLAS Collaboration}},
      title        = {{M}easurement of the {L}und jet plane in hadronic decays of
                      top quarks and {W} bosons with the {ATLAS} detector},
      reportid     = {PUBDB-2024-05558, arXiv:2407.10879. CERN-EP-2024-169},
      year         = {2024},
      note         = {40 pages in total, author list starting page 42, 15
                      figures, 3 tables, submitted to EPJC. All figures including
                      auxiliary figures are available at
                      http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2020-31},
      abstract     = {The Lund jet plane (LJP) is measured for the first time in
                      $t\overline{t}$ events, using 140 fb$^{-1}$ of $\sqrt{s}$ =
                      13 TeV pp collision data collected with the ATLAS detector
                      at the LHC. The LJP is a two-dimensional observable of the
                      sub-structure of hadronic jets that acts as a proxy for the
                      kinematics of parton showers and hadron formation. The
                      observable is constructed from charged particles and is
                      measured for R = 1.0 anti-$k_t$ jets with transverse
                      momentum above 350 GeV containing the full decay products of
                      either a top quark or a daughter $W$ boson. The other top
                      quark in the event is identified from its decay into a
                      b-quark, an electron or a muon and a neutrino. The
                      measurement is corrected for detector effects and compared
                      with a range of Monte Carlo predictions sensitive to
                      different aspects of the hadronic decays of the heavy
                      particles. In the $W$-boson-initiated jets, all the
                      predictions are incompatible with the measurement. In the
                      top quark initiated jets, disagreement with all predictions
                      is observed in smaller subregions of the plane, and with a
                      subset of the predictions across the fiducial plane. The
                      measurement could be used to improve the tuning of Monte
                      Carlo generators, for better modelling of hadronic decays of
                      heavy quarks and bosons, or to improve the performance of
                      jet taggers.},
      keywords     = {hadron, formation (INSPIRE) / parton, showers (INSPIRE) /
                      dimension, 2 (INSPIRE) / top, hadronic decay (INSPIRE) /
                      heavy quark, hadronic decay (INSPIRE) / particle, heavy,
                      hadronic decay (INSPIRE) / jet, hadronic (INSPIRE) / p p,
                      scattering (INSPIRE) / ATLAS (INSPIRE) / Monte Carlo
                      (INSPIRE) / muon (INSPIRE) / GeV (INSPIRE) / charged
                      particle (INSPIRE) / electron (INSPIRE) / transverse
                      momentum (INSPIRE) / CERN LHC Coll (INSPIRE) / kinematics
                      (INSPIRE) / performance (INSPIRE) / TeV (INSPIRE)},
      cin          = {ATLAS},
      cid          = {I:(DE-H253)ATLAS-20120731},
      pnm          = {611 - Fundamental Particles and Forces (POF4-611) / DFG
                      project 469666862 - Präzisionstests des Standardmodells
                      unter der Verwendung von geboosteten W/Z-Bosonen am Large
                      Hadron Collider (469666862)},
      pid          = {G:(DE-HGF)POF4-611 / G:(GEPRIS)469666862},
      experiment   = {EXP:(DE-H253)LHC-Exp-ATLAS-20150101},
      typ          = {PUB:(DE-HGF)25},
      eprint       = {2407.10879},
      howpublished = {arXiv:2407.10879},
      archivePrefix = {arXiv},
      SLACcitation = {$\%\%CITATION$ = $arXiv:2407.10879;\%\%$},
      doi          = {10.3204/PUBDB-2024-05558},
      url          = {https://bib-pubdb1.desy.de/record/613132},
}