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@ARTICLE{MammenAbraham:615858,
      author       = {Mammen Abraham, Roshan and Ai, Xiaocong and Anders, John
                      and Antel, Claire and Ariga, Akitaka and Ariga, Tomoko and
                      Atkinson, Jeremy and Bernlochner, Florian U. and Bianchi,
                      Emma and Boeckh, Tobias and Boyd, Jamie and Brenner, Lydia
                      and Burger, Angela and Cadoux, Franck and Cardella, Roberto
                      and Casper, David W. and Cavanagh, Charlotte and Chen, Xin
                      and Cho, Eunhyung and Chouhan, Dhruv and Coccaro, Andrea and
                      Débieux, Stephane and D'Onofrio, Monica and Desai, Ansh and
                      Dmitrievsky, Sergey and Dobre, Radu and Eley, Sinead and
                      Favre, Yannick and Fellers, Deion and Feng, Jonathan L. and
                      Fenoglio, Carlo Alberto and Ferrere, Didier and Fieg, Max
                      and Filali, Wissal and Firu, Elena and Galantay, Edward and
                      Garabaglu, Ali and Gibson, Stephen and Gonzalez-Sevilla,
                      Sergio and Gornushkin, Yuri and Gwilliam, Carl and Hayakawa,
                      Daiki and Holzbock, Michael and Hsu, Shih-Chieh and Hu, Zhen
                      and Iacobucci, Giuseppe and Inada, Tomohiro and Iodice, Luca
                      and Jakobsen, Sune and Joos, Hans and Kajomovitz, Enrique
                      and Kawahara, Hiroaki and Keyken, Alex and Kling, Felix and
                      Köck, Daniela and Kontaxakis, Pantelis and Kose, Umut and
                      Kotitsa, Rafaella and Kuehn, Susanne and Kugathasan,
                      Thanushan and Levinson, Lorne and Li, Ke and Liu, Jinfeng
                      and Liu, Yi and Lutz, Margaret S. and MacDonald, Jack and
                      Magliocca, Chiara and Mäkelä, Toni and McCoy, Lawson and
                      McFayden, Josh and Medina, Andrea Pizarro and Milanesio,
                      Matteo and Moretti, Théo and Nakamura, Mitsuhiro and
                      Nakano, Toshiyuki and Nevay, Laurie and Ohashi, Ken and
                      Otono, Hidetoshi and Paolozzi, Lorenzo and Petersen, Brian
                      and Preda, Titi and Prim, Markus and Queitsch-Maitland,
                      Michaela and Rokujo, Hiroki and Rubbia, André and
                      Sabater-Iglesias, Jorge and Sato, Osamu and Scampoli, Paola
                      and Schmieden, Kristof and Schott, Matthias and Sfyrla, Anna
                      and Sgalaberna, Davide and Shamim, Mansoora and Shively,
                      Savannah and Takubo, Yosuke and Tarannum, Noshin and
                      Theiner, Ondrej and Torrence, Eric and Martinez, Oscar Ivan
                      Valdes and Vasina, Svetlana and Vormwald, Benedikt and Wang,
                      Di and Wang, Yuxiao and Welch, Eli and Xu, Yue and Zahorec,
                      Samuel and Zambito, Stefano and Zhang, Shunliang},
      collaboration = {{FASER Collaboration}},
      title        = {{S}hining {L}ight on the {D}ark {S}ector: {S}earch for
                      {A}xion-like {P}articles and {O}ther {N}ew {P}hysics in
                      {P}hotonic {F}inal {S}tates with {FASER}},
      reportid     = {PUBDB-2024-06299, arXiv:2410.10363. CERN-EP-2024-262.
                      DESY-24-153},
      year         = {2024},
      note         = {to be submitted to journal},
      abstract     = {The first FASER search for a light, long-lived particle
                      decaying into a pair of photons is reported. The search uses
                      LHC proton-proton collision data at
                      $\sqrt{s}=13.6~\text{TeV}$ collected in 2022 and 2023,
                      corresponding to an integrated luminosity of
                      $57.7\text{fb}^{-1}$. A model with axion-like particles
                      (ALPs) dominantly coupled to weak gauge bosons is the
                      primary target. Signal events are characterised by
                      high-energy deposits in the electromagnetic calorimeter and
                      no signal in the veto scintillators. One event is observed,
                      compared to a background expectation of $0.44 \pm 0.39$
                      events, which is entirely dominated by neutrino
                      interactions. World-leading constraints on ALPs are obtained
                      for masses up to $300~\text{MeV}$ and couplings to the
                      Standard Model W gauge boson, $g_{aWW}$, around $10^{-4}$
                      GeV$^{-1}$, testing a previously unexplored region of
                      parameter space. Other new particle models that lead to the
                      same experimental signature, including ALPs coupled to
                      gluons or photons, U(1)$_B$ gauge bosons, up-philic scalars,
                      and a Type-I two-Higgs doublet model, are also considered
                      for interpretation, and new constraints on previously viable
                      parameter space are presented in this paper.},
      keywords     = {High Energy Physics - Experiment (hep-ex) (Other) / FOS:
                      Physical sciences (Other)},
      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: Quantum Universe
                      (390833306)},
      pid          = {G:(DE-HGF)POF4-611 / G:(GEPRIS)390833306},
      experiment   = {EXP:(DE-H253)LHC-Exp-other-20150101},
      typ          = {PUB:(DE-HGF)25},
      eprint       = {2410.10363},
      howpublished = {arXiv:2410.10363},
      archivePrefix = {arXiv},
      SLACcitation = {$\%\%CITATION$ = $arXiv:2410.10363;\%\%$},
      doi          = {10.3204/PUBDB-2024-06299},
      url          = {https://bib-pubdb1.desy.de/record/615858},
}