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@PHDTHESIS{BermudezMartinez:424310,
      author       = {Bermudez Martinez, Armando},
      othercontributors = {Jung, Hannes and Gallo-Voss, Elisabetta},
      title        = {{M}easurement and phenomenology of azimuthal correlations
                      in high transverse momentum multi-jet topologies in {CMS} at
                      the center-of-mass energy of 13 {T}e{V}},
      school       = {Universität Hamburg},
      type         = {Dissertation},
      address      = {Hamburg},
      publisher    = {Verlag Deutsches Elektronen-Synchrotron},
      reportid     = {PUBDB-2019-02858, DESY-THESIS-2019-013},
      series       = {DESY-THESIS},
      pages        = {287},
      year         = {2019},
      note         = {Dissertation, Universität Hamburg, 2019},
      abstract     = {This work addresses the measurements and phenomenology of
                      the azimuthal separation $\Delta\phi_{12}$ between the jets
                      with the largest transverse momenta $(p_T)$ in multi-jet
                      event topologies. The measurements are based on
                      proton-proton collision data at the center-of-mass energy of
                      13 TeV recorded by the Compact Muon Solenoid (CMS)
                      experiment in 2016, and correspond to an integrated
                      luminosity of 35.9 fb$^{−1}$. The measurements are
                      performed in ranges of the leading jet transverse momentum
                      $(p^{max}_{T})$, covering the range $p^{max}_{T} >$ 200 GeV.
                      Special attention is given to the investigation of the
                      Sudakov region 170° $< \Delta \phi_{12} <$ 180° in
                      inclusive 2- and 3-jet event topologies. This region
                      characterizes nearly back-to-back jet topologies and is
                      sensitive to contributions from soft partonic radiation. The
                      observables are compared to theoretical predictions based on
                      matrix element (ME) calculation at leading- and
                      next-to-leading-order accuracy in perturbative quantum
                      chromodynamics (pQCD) combined with parton showers (PS).
                      Discrepancies of up to 15\% are observed for $\Delta
                      \phi_{12} <$ 177°. The measurements are complemented with a
                      wide phenomenological investigation of the PS impact and its
                      subsequent combination with the ME calculation on the
                      $\Delta \phi_{12}$ distribution. The measurements of $\Delta
                      \phi_{12}$ in nearly back-to-back jet topologies for
                      inclusive 2- and 3-jet events are not simultaneously
                      described by any of the theoretical models. Predictions
                      using ME and PS at different accuracies in pQCD provide a
                      similar description of the data.},
      cin          = {CMS},
      cid          = {I:(DE-H253)CMS-20120731},
      pnm          = {611 - Fundamental Particles and Forces (POF3-611)},
      pid          = {G:(DE-HGF)POF3-611},
      experiment   = {EXP:(DE-H253)LHC-Exp-CMS-20150101},
      typ          = {PUB:(DE-HGF)3 / PUB:(DE-HGF)29 / PUB:(DE-HGF)11},
      doi          = {10.3204/PUBDB-2019-02858},
      url          = {https://bib-pubdb1.desy.de/record/424310},
}