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@ARTICLE{Acharya:250934,
      author       = {Acharya, Shreyasi and others},
      title        = {{O}bservation of a multiplicity dependence in the $p_{\rm
                      {T}}$-differential charm baryon-to-meson ratios in
                      proton-proton collisions at $\sqrt{s} = 13$ {T}e{V}},
      journal      = {Physics letters / B},
      volume       = {829},
      issn         = {0031-9163},
      address      = {Amsterdam},
      publisher    = {North-Holland Publ.},
      reportid     = {GSI-2023-00146, arXiv:2111.11948. CERN-EP-2021-245},
      pages        = {137065},
      year         = {2022},
      note         = {Phys.Lett.B 829 (2022) 137065. 25 pages, 5 captioned
                      figures, 1 table, authors from page 20, published version,
                      figures at
                      http://alice-publications.web.cern.ch/node/7524SCOAP3.
                      ccby4.0},
      abstract     = {The production of prompt D0, Ds+, and Λc+ hadrons, and
                      their ratios, Ds+/D0 and Λc+/D0, are measured in
                      proton–proton collisions at $\sqrt{s}$ = 13 TeV at
                      midrapidity (|y|<0.5) with the ALICE detector at the LHC.
                      The measurements are performed as a function of the
                      charm-hadron transverse momentum (p$_T$) in intervals of
                      charged-particle multiplicity, measured with two
                      multiplicity estimators covering different pseudorapidity
                      regions. While the strange to non-strange Ds+/D0 ratio
                      indicates no significant multiplicity dependence, the
                      baryon-to-meson p$_T$-differential Λc+/D0 ratio shows a
                      multiplicity-dependent enhancement, with a significance of
                      5.3σ for 1 < p$_T$ <12 GeV/c, comparing the highest
                      multiplicity interval with respect to the lowest one. The
                      measurements are compared with a theoretical model that
                      explains the multiplicity dependence by a canonical
                      treatment of quantum charges in the statistical
                      hadronisation approach, and with predictions from event
                      generators that implement colour reconnection mechanisms
                      beyond the leading colour approximation to model the
                      hadronisation process. The Λc+/D0 ratios as a function of
                      p$_T$ present a similar shape and magnitude as the Λ/KS0
                      ratios in comparable multiplicity intervals, suggesting a
                      potential common mechanism for light- and charm-hadron
                      formation, with analogous multiplicity dependence. The
                      p$_T$-integrated ratios, extrapolated down to p$_T$ = 0, do
                      not show a significant dependence on multiplicity within the
                      uncertainties.},
      keywords     = {multiplicity: dependence (INSPIRE) / p p: scattering
                      (INSPIRE) / hadronization: statistical (INSPIRE) / charged
                      particle: multiplicity (INSPIRE) / hadronization: model
                      (INSPIRE) / rapidity: difference (INSPIRE) / color (INSPIRE)
                      / ALICE (INSPIRE) / transverse momentum (INSPIRE) / CERN LHC
                      Coll (INSPIRE) / charm (INSPIRE) / hadron (INSPIRE) / Monte
                      Carlo (INSPIRE) / experimental results (INSPIRE) / 13000
                      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       = {2111.11948},
      howpublished = {arXiv:2111.11948},
      archivePrefix = {arXiv},
      SLACcitation = {$\%\%CITATION$ = $arXiv:2111.11948;\%\%$},
      UT           = {WOS:000821534900019},
      doi          = {10.1016/j.physletb.2022.137065},
      url          = {https://repository.gsi.de/record/250934},
}