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@ARTICLE{Kling:644462,
      author       = {Kling, Felix and Reimitz, Peter and Ritz, Adam},
      title        = {{D}ark vector boson bremsstrahlung: {N}ew form factors for
                      a broader class of models},
      journal      = {Physical review / D},
      volume       = {113},
      number       = {1},
      issn         = {2470-0010},
      address      = {Ridge, NY},
      publisher    = {American Physical Society},
      reportid     = {PUBDB-2026-00339, arXiv:2509.09437. UCI-TR-2025-16},
      pages        = {015008},
      year         = {2026},
      note         = {cc-by, 19 pages, 7 figures},
      abstract     = {We explore the sensitivity of collider experiments to a
                      broad class of GeV-scale dark vector models of new physics
                      via production in proton and neutron bremsstrahlung and
                      initial state radiation. This is achieved using a new
                      physically motivated model for timelike vector form factors
                      with generic charges for both protons and neutrons, which is
                      fit to a variety of timelike and spacelike data with
                      quantified uncertainties. The production model for both
                      proton and neutron bremsstrahlung is applied to recast and
                      extend the reach of existing FASER data to GeV-mass dark
                      photons, U(1)B, U(1)B-L, and protophobic vectors, as well as
                      forecasts for millicharged particles at FORMOSA.},
      cin          = {T},
      ddc          = {530},
      cid          = {I:(DE-H253)T-20120731},
      pnm          = {611 - Fundamental Particles and Forces (POF4-611) / DFG
                      project G:(GEPRIS)390833306 - EXC 2121: Das Quantisierte
                      Universum II (390833306)},
      pid          = {G:(DE-HGF)POF4-611 / G:(GEPRIS)390833306},
      experiment   = {EXP:(DE-MLZ)NOSPEC-20140101},
      typ          = {PUB:(DE-HGF)16},
      eprint       = {2509.09437},
      howpublished = {arXiv:2509.09437},
      archivePrefix = {arXiv},
      SLACcitation = {$\%\%CITATION$ = $arXiv:2509.09437;\%\%$},
      doi          = {10.1103/fxpl-yhc2},
      url          = {https://bib-pubdb1.desy.de/record/644462},
}