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@ARTICLE{Acharya:364034,
      author       = {Acharya, Shreyasi and others},
      title        = {{F}irst measurement of {D}$^{*+}$ vector meson spin
                      alignment in {P}b–{P}b collisions at
                      $\sqrt{{s}_{\text{{NN}}}}={5}.0{2}$ {T}e{V}},
      journal      = {Journal of high energy physics},
      volume       = {10},
      number       = {10},
      issn         = {1126-6708},
      address      = {Heidelberg},
      publisher    = {Springer},
      reportid     = {GSI-2026-00217, arXiv:2504.00714. CERN-EP-2025-072},
      pages        = {94},
      year         = {2025},
      note         = {This article is distributed under the terms of the Creative
                      Commons Attribution License (CC-BY 4.0). Article funded by
                      SCOAP3.},
      abstract     = {The first measurement of prompt D$^{*+}$-meson spin
                      alignment in ultrarelativistic heavy-ion collisions with
                      respect to the direction orthogonal to the reaction plane is
                      presented. The spin alignment is quantified by measuring the
                      element ρ$_{00}$ of the diagonal spin-density matrix for
                      prompt D$^{*+}$ mesons with 4 < p$_{T}$< 30 GeV/c in two
                      rapidity intervals, |y|< 0.3 and 0.3 < |y|< 0.8, in central
                      (0–10\%) and midcentral (30–50\%) Pb–Pb collisions at
                      $\sqrt{{s}_{\text{NN}}}={5}.0{2}$ TeV. Evidence of spin
                      alignment ρ$_{00}$> 1/3 has been found for p$_{T}$> 15
                      GeV/c and 0.3 < |y|< 0.8 with a significance of 3.1σ. The
                      measured spin alignment of prompt D$^{*+}$ mesons is
                      compared with the one of inclusive J/ψ mesons measured at
                      forward rapidity (2.5 < y < 4).},
      keywords     = {Heavy Ion Experiments (autogen) / Particle Correlations and
                      Fluctuations (autogen) / QCD (autogen) / Quark Gluon Plasma
                      (autogen)},
      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) / STRONG-2020 - The strong
                      interaction at the frontier of knowledge: fundamental
                      research and applications (824093) / DFG project
                      G:(GEPRIS)283604770 - SFB 1258: Neutrinos und Dunkle Materie
                      in der Astro- und Teilchenphysik (NDM) (283604770) / DFG
                      project G:(GEPRIS)491382106 - Open-Access-Publikationskosten
                      / 2025-2027 / GSI Helmholtzzentrum für Schwerionenforschung
                      (491382106)},
      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 / G:(EU-Grant)824093 /
                      G:(GEPRIS)283604770 / G:(GEPRIS)491382106},
      experiment   = {EXP:(DE-H253)LHC-Exp-ALICE-20150101},
      typ          = {PUB:(DE-HGF)16},
      eprint       = {2504.00714},
      howpublished = {arXiv:2504.00714},
      archivePrefix = {arXiv},
      SLACcitation = {$\%\%CITATION$ = $arXiv:2504.00714;\%\%$},
      UT           = {WOS:001628387400001},
      doi          = {10.1007/JHEP10(2025)094},
      url          = {https://repository.gsi.de/record/364034},
}