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@ARTICLE{Acharya:250878,
      author       = {Acharya, Shreyasi and others},
      title        = {{C}harm-quark fragmentation fractions and production cross
                      section at midrapidity in pp collisions at the {LHC}},
      journal      = {Physical review / D},
      volume       = {105},
      number       = {1},
      issn         = {2470-0010},
      address      = {Melville, NY},
      publisher    = {Inst.},
      reportid     = {GSI-2023-00110, arXiv:2105.06335. CERN-EP-2021-088},
      pages        = {L011103},
      year         = {2022},
      note         = {ISSN 2470-0029 not unique: **3 hits**.Phys. Rev. D 105,
                      L011103 (2022). 20 pages, 2 captioned figures, 1 table,
                      authors from page 14, published version, figures at
                      https://alice-publications.web.cern.ch/node/7107SCOAP3
                      ccby4.0},
      abstract     = {Recent p$_T$-integrated cross-section measurements of the
                      ground-state charm mesons and baryons, D$^0$, D$^+$,
                      D$_s^+$, Λ$_c^+$, and Ξ$_c^0$, are used to evaluate the
                      charm fragmentation fractions and production cross section
                      per unit of rapidity at midrapidity (|y|<0.5), in pp
                      collisions at $\sqrt{s}$ = 5.02 TeV at the LHC. The latter
                      is dσ$_{c\bar{c}}$/dy|$_{|y|<0.5}$ = 1165 ± 44(stat) -101
                      + 134(syst) μb. These measurements were obtained for the
                      first time in hadronic collisions at the LHC, including the
                      charm baryon states, recently measured by ALICE at
                      midrapidity. The charm fragmentation fractions differ
                      significantly from the values measured in e$^+$e$^-$ and ep
                      collisions, providing evidence of the dependence of the
                      parton-to-hadron fragmentation fractions on the collision
                      system, indicating that the assumption of their universality
                      is not supported by the measured cross sections. An increase
                      of a factor of about 3.3 for the fragmentation fraction for
                      the Λ$_c^+$ with a significance of 5σ between the values
                      obtained in pp collisions and those obtained in e$^+$e$^-$
                      (ep) collisions is reported. The fragmentation fraction for
                      the Ξ$_c^0$ was obtained for the first time in any
                      collision system. The measured fragmentation fractions were
                      used to update the $c\bar{c}$ cross sections per unit of
                      rapidity at |y| < 0.5 at $\sqrt{s}$ = 2.76 and 7 TeV, which
                      are about 40\% higher than the previously published results.
                      The data were compared with perturbative-QCD calculations
                      and lie at the upper edge of the theoretical bands.},
      keywords     = {charm: fragmentation (INSPIRE) / p p: scattering (INSPIRE)
                      / electron p: interaction (INSPIRE) / charm: ground state
                      (INSPIRE) / quantum chromodynamics: perturbation theory
                      (INSPIRE) / cross section: measured (INSPIRE) / hadron
                      hadron: interaction (INSPIRE) / CERN LHC Coll (INSPIRE) /
                      rapidity (INSPIRE) / ALICE (INSPIRE) / experimental results
                      (INSPIRE) / 2760 GeV-cms/nucleon (INSPIRE) / 5020
                      GeV-cms/nucleon (INSPIRE) / 7000 GeV-cms/nucleon (INSPIRE)},
      cin          = {ALI / DTL / CIT / EXM / ALICE@CERN},
      ddc          = {530},
      cid          = {I:(DE-Ds200)ALI-20080822OR105 /
                      I:(DE-Ds200)DTL-20051214OR031 /
                      I:(DE-Ds200)CIT-20110310OR121 /
                      I:(DE-Ds200)EXM-20080818OR100 / I:(DE-Ds200)Coll-CERN-ALICE},
      pnm          = {612 - Cosmic Matter in the Laboratory (POF4-612) / HGS-HIRe
                      - HGS-HIRe for FAIR (HGS-HIRe) / SUC-GSI-Heidelberg -
                      Strategic university cooperation GSI-U Heidelberg
                      (SUC-GSI-HE) / SUC-GSI-Frankfurt - Strategic university
                      cooperation GSI-U Frankfurt/M (SUC-GSI-FR) /
                      SUC-GSI-Darmstadt - Strategic university cooperation GSI-TU
                      Darmstadt (SUC-GSI-DA)},
      pid          = {G:(DE-HGF)POF4-612 / G:(DE-Ds200)HGS-HIRe /
                      G:(DE-Ds200)SUC-GSI-HE / G:(DE-Ds200)SUC-GSI-FR /
                      G:(DE-Ds200)SUC-GSI-DA},
      experiment   = {EXP:(DE-H253)LHC-Exp-ALICE-20150101},
      typ          = {PUB:(DE-HGF)16},
      eprint       = {2105.06335},
      howpublished = {arXiv:2105.06335},
      archivePrefix = {arXiv},
      SLACcitation = {$\%\%CITATION$ = $arXiv:2105.06335;\%\%$},
      UT           = {WOS:000748867800001},
      doi          = {10.1103/PhysRevD.105.L011103},
      url          = {https://repository.gsi.de/record/250878},
}