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@ARTICLE{Aad:599071,
      author       = {Aad, Georges and others},
      collaboration = {{ATLAS Collaboration}},
      title        = {{M}easurement of the {S}ensitivity of {T}wo-{P}article
                      {C}orrelations in pp {C}ollisions to the {P}resence of
                      {H}ard {S}catterings},
      journal      = {Physical review letters},
      volume       = {131},
      number       = {16},
      issn         = {0031-9007},
      address      = {College Park, Md.},
      publisher    = {APS},
      reportid     = {PUBDB-2023-07137, arXiv:2303.17357. CERN-EP-2023-036},
      pages        = {162301},
      year         = {2023},
      note         = {All figures including auxiliary figures are available at
                      https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HION-2021-08},
      abstract     = {A key open question in the study of multiparticle
                      production in high-energy pp collisions is the relationship
                      between the “ridge”—i.e., the observed azimuthal
                      correlations between particles in the underlying event that
                      extend over all rapidities—and hard or semihard scattering
                      processes. In particular, it is not known whether jets or
                      their soft fragments are correlated with particles in the
                      underlying event. To address this question, two-particle
                      correlations are measured in pp collisions at s=13 TeV using
                      data collected by the ATLAS experiment at the LHC, with an
                      integrated luminosity of 15.8 pb-1, in two different
                      configurations. In the first case, charged particles
                      associated with jets are excluded from the correlation
                      analysis, while in the second case, correlations are
                      measured between particles within jets and charged particles
                      from the underlying event. Second-order flow coefficients,
                      v2, are presented as a function of event multiplicity and
                      transverse momentum. These measurements show that excluding
                      particles associated with jets does not affect the measured
                      correlations. Moreover, particles associated with jets do
                      not exhibit any significant azimuthal correlations with the
                      underlying event, ruling out hard processes contributing to
                      the ridge.},
      keywords     = {experimental results (INSPIRE) / correlation: two-particle
                      (INSPIRE) / correlation: measured (INSPIRE) / p p:
                      scattering (INSPIRE) / underlying event (INSPIRE) / charged
                      particle (INSPIRE) / jet (INSPIRE) / angular correlation
                      (INSPIRE) / sensitivity (INSPIRE) / flow (INSPIRE) /
                      transverse momentum (INSPIRE) / hard scattering (INSPIRE) /
                      CERN LHC Coll (INSPIRE) / rapidity (INSPIRE) / multiplicity
                      (INSPIRE) / ATLAS (INSPIRE)},
      cin          = {ATLAS},
      ddc          = {530},
      cid          = {I:(DE-H253)ATLAS-20120731},
      pnm          = {611 - Fundamental Particles and Forces (POF4-611)},
      pid          = {G:(DE-HGF)POF4-611},
      experiment   = {EXP:(DE-H253)LHC-Exp-ATLAS-20150101},
      typ          = {PUB:(DE-HGF)16},
      eprint       = {2303.17357},
      howpublished = {arXiv:2303.17357},
      archivePrefix = {arXiv},
      SLACcitation = {$\%\%CITATION$ = $arXiv:2303.17357;\%\%$},
      pubmed       = {pmid:37925689},
      UT           = {WOS:001102759000001},
      doi          = {10.1103/PhysRevLett.131.162301},
      url          = {https://bib-pubdb1.desy.de/record/599071},
}