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@PHDTHESIS{Yang:614200,
      author       = {Yang, Yewon},
      othercontributors = {Geiser, Achim and Moch, Sven-Olaf},
      title        = {{M}easurement of {C}harm {P}roduction in {CMS} and {T}otal
                      {C}harm {C}ross {S}ection with {N}on-{U}niversal {C}harm
                      {F}ragmentation},
      school       = {Universität Hamburg},
      type         = {Dissertation},
      address      = {Hamburg},
      publisher    = {Verlag Deutsches Elektronen-Synchrotron DESY},
      reportid     = {PUBDB-2024-05764, DESY-THESIS-2024-013},
      series       = {DESY-THESIS},
      pages        = {362},
      year         = {2024},
      note         = {Dissertation, Universität Hamburg, 2024},
      abstract     = {This thesis presents differential and total charm cross
                      section measurements at various centerof-mass energies in
                      $pp$ collisions. For the purpose of measuring the total
                      charm cross section,the D$^{∗+}$ differential cross
                      sections are measured at $\sqrt{s}$ = 7, 0.9 and 13 TeV in
                      the CMSdetector by covering the largest possible phase
                      space, resulting in the smallest extrapolation factor ever
                      introduced at the LHC. The measured fiducial cross sections
                      are extrapolated to thetotal cross section using a
                      data-driven parametrization which is introduced for the
                      first time tobe applied to all the weakly-decaying ground
                      states in $pp$ collisions with non-universal
                      charmfragmentation. Also adding other LHC measurements, the
                      total charm-pair cross sections aremeasured at $\sqrt{s}$ =
                      0.9, 5, 7, and 13 TeV to be 1.83$\substack{+0.35 \\
                      −0.37}$, 8.43$\substack{+1.055 \\ −1.16}$,
                      9.39$\substack{+1.35 \\ −1.49}$, and 17.43$\substack{+2.10
                      \\ −2.57}$ mb, respectively. These measurements supersede
                      all the earlier LHC measurements which werederived under the
                      fragmentation universality assumption, and show consistency
                      with NNLOQCD theory predictions. The measurement of the
                      total charm cross section as a function ofthe center-of-mass
                      energy can be used to constrain QCD parameters. The very
                      first exampleis shown to constrain the charm mass and the
                      parton distribution functions particularly in thelow-$x$
                      region.},
      cin          = {CMS},
      cid          = {I:(DE-H253)CMS-20120731},
      pnm          = {611 - Fundamental Particles and Forces (POF4-611) / PHGS,
                      VH-GS-500 - PIER Helmholtz Graduate School
                      $(2015_IFV-VH-GS-500)$},
      pid          = {G:(DE-HGF)POF4-611 / $G:(DE-HGF)2015_IFV-VH-GS-500$},
      experiment   = {EXP:(DE-H253)LHC-Exp-CMS-20150101},
      typ          = {PUB:(DE-HGF)3 / PUB:(DE-HGF)11},
      urn          = {urn:nbn:de:gbv:18-ediss-120900},
      doi          = {10.3204/PUBDB-2024-05764},
      url          = {https://bib-pubdb1.desy.de/record/614200},
}