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@INPROCEEDINGS{Roncadelli:296200,
      author       = {Roncadelli, Marco and De Angelis, Alessandro and Galanti,
                      Giorgio and Persic, Massimo},
      title        = {{E}vidence for an axion-like particle from blazar spectra?},
      address      = {Hamburg},
      publisher    = {Verlag Deutsches Elektronen-Synchrotron},
      reportid     = {PUBDB-2016-01353, arXiv:1102.1177. DESY-PROC-2010-03},
      pages        = {99-102},
      year         = {2010},
      abstract     = {Observations with the Imaging Atmospheric Cherenkov
                      Telescopes H.E.S.S., MAGIC, CANGAROO III and VERITAS have
                      shown that the Universe is more transparent than expected to
                      gamma rays above 100GeV. As a natural explanation, the DARMA
                      scenario has previously been proposed, wherein photons can
                      oscillate into a new very light axionlike particle and
                      vice-versa in the presence of cosmic magnetic fields. Here
                      we demonstrate that the most recent observations further
                      support the DARMA scenario, thereby making the existence of
                      a very light axion-like particle more likely.},
      month         = {Jul},
      date          = {2010-07-05},
      organization  = {6th Patras Workshop on Axions, WIMPs
                       and WISPs, Zürich (Switzerland), 5 Jul
                       2010 - 9 Jul 2010},
      keywords     = {blazar: spectrum (INSPIRE) / axion (INSPIRE) / Cherenkov
                      counter (INSPIRE) / magnetic field (INSPIRE) / gamma ray
                      (INSPIRE) / imaging (INSPIRE) / VERITAS (INSPIRE) / MAGIC
                      (INSPIRE) / WIMP (INSPIRE) / WISP (INSPIRE) / HESS
                      (INSPIRE)},
      cin          = {L},
      cid          = {I:(DE-H253)L-20120731},
      pnm          = {899 - ohne Topic (POF3-899)},
      pid          = {G:(DE-HGF)POF3-899},
      experiment   = {EXP:(DE-H253)HERA(machine)-20150101},
      typ          = {PUB:(DE-HGF)8 / PUB:(DE-HGF)15},
      eprint       = {1102.1177},
      howpublished = {arXiv:1102.1177},
      archivePrefix = {arXiv},
      SLACcitation = {$\%\%CITATION$ = $arXiv:1102.1177;\%\%$},
      doi          = {10.3204/DESY-PROC-2010-03/roncadelli_marco},
      url          = {https://bib-pubdb1.desy.de/record/296200},
}