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@INPROCEEDINGS{Jorge:354865,
      author       = {Jorge, Adrian William Romero and Bratkovskaya, Elena and
                      Song, Taesoo and Sagunski, Laura},
      title        = {{E}xploring {D}ark {P}hoton {P}roduction and {K}inetic
                      {M}ixing {C}onstraints in {H}eavy-{I}on {C}ollisions},
      journal      = {Astronomische Nachrichten},
      issn         = {1521-3994},
      address      = {Berlin},
      publisher    = {Wiley-VCH Verl.},
      reportid     = {GSI-2024-01298, arXiv:2412.02536},
      pages        = {e20240132},
      year         = {2025},
      note         = {"This is an open access article under the terms of the
                      Creative Commons Attribution License, which permits use,
                      distribution and reproduction in any medium, provided the
                      original work is properlycited."},
      abstract     = {Vector $U$-bosons, often referred to as 'dark photons', are
                      potential candidates for mediating dark matter interactions.
                      In this study, we outline a procedure to derive theoretical
                      constraints on the upper bound of the kinetic mixing
                      parameter $\epsilon^2(M_U)$ using dilepton data from
                      heavy-ion from SIS to RHIC energies. The analysis is based
                      on the microscopic Parton-Hadron-String Dynamics (PHSD)
                      transport model, which successfully reproduces the measured
                      dilepton spectra in $p+p$, $p+A$, and $A+A$ collisions.
                      Besides the dilepton channels resulting from interactions
                      and decays of Standard Model particles (such as mesons and
                      baryons), we extend the PHSD approach to include the decay
                      of hypothetical $U$-bosons into dileptons, $U \to e^+ e^-$.
                      The production of these $U$-bosons occurs via Dalitz decays
                      of pions, $\eta$-mesons, $\omega$-mesons, Delta resonances,
                      as well as from the decays of vector mesons and $K^+$
                      mesons. This analysis provides an upper limit on
                      $\epsilon^2(M_U)$ and offers insights into the accuracy
                      required for future experimental searches for dark photons
                      through dilepton experiments.},
      month         = {Sep},
      date          = {2024-09-02},
      organization  = {THE INTERNATIONAL WORKSHOP ON
                       ASTRONOMY AND RELATIVISTIC
                       ASTROPHYSICS, Machu Picchu Pueblo
                       (Peru), 2 Sep 2024 - 6 Sep 2024},
      cin          = {TES},
      ddc          = {520},
      cid          = {I:(DE-Ds200)TES-20160901OR397},
      pnm          = {612 - Cosmic Matter in the Laboratory (POF4-612) / DFG
                      project G:(GEPRIS)315477589 - TRR 211: Stark wechselwirkende
                      Materie unter extremen Bedingungen (315477589)},
      pid          = {G:(DE-HGF)POF4-612 / G:(GEPRIS)315477589},
      experiment   = {$EXP:(DE-Ds200)no_experiment-20200803$},
      typ          = {PUB:(DE-HGF)16 / PUB:(DE-HGF)8},
      eprint       = {2412.02536},
      howpublished = {arXiv:2412.02536},
      archivePrefix = {arXiv},
      SLACcitation = {$\%\%CITATION$ = $arXiv:2412.02536;\%\%$},
      UT           = {WOS:001381107800001},
      doi          = {10.1002/asna.20240132},
      url          = {https://repository.gsi.de/record/354865},
}