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@ARTICLE{Acharyya:490354,
      author       = {Acharyya, A. and Archer, A. and Bangale, P. and Bartkoske,
                      J. T. and Batista, P. and Baumgart, M. and Benbow, W. and
                      Buckley, J. H. and Falcone, A. and Feng, Q. and Finley, J.
                      P. and Foote, G. M. and Fortson, L. and Furniss, A. and
                      Gallagher, G. and Hanlon, W. F. and Hervet, O. and Hoang, J.
                      and Holder, J. and Humensky, T. B. and Jin, W. and Kaaret,
                      P. and Kertzman, M. and Kherlakian, M. and Kieda, D. and
                      Kleiner, Tobias Kai and Korzoun, N. and Krennrich, F. and
                      Lang, M. J. and Lundy, M. and Maier, G. and McGrath, C. E.
                      and Moriarty, P. and O'Brien, S. and Ong, R. A. and Pfrang,
                      Konstantin Johannes and Pohl, M. and Pueschel, E. and Quinn,
                      J. and Ragan, K. and Reynolds, P. T. and Roache, E. and
                      Rodd, N. L. and Ryan, J. L. and Sadeh, I. and Saha, L. and
                      Santander, M. and Sembroski, G. H. and Shang, R. and
                      Splettstoesser, M. and Tak, Donggeun and Tucci, J. V. and
                      Vassiliev, V. V. and Williams, D. A.},
      title        = {{S}earch for {U}ltraheavy {D}ark {M}atter from
                      {O}bservations of {D}warf {S}pheroidal {G}alaxies with
                      {VERITAS}},
      journal      = {The astrophysical journal / 1},
      volume       = {945},
      number       = {2},
      issn         = {0004-637X},
      address      = {London},
      publisher    = {Institute of Physics Publ.},
      reportid     = {PUBDB-2022-07671, arXiv:2302.08784},
      pages        = {101},
      year         = {2023},
      note         = {10 pages, 7 figures},
      abstract     = {Dark matter is a key piece of the current cosmological
                      scenario, with weakly interacting massive particles (WIMPs)
                      a leading dark matter candidate. WIMPs have not been
                      detected in their conventional parameter space (100 GeV ≲M
                      $_{χ}$ ≲ 100 TeV), a mass range accessible with current
                      Imaging Atmospheric Cherenkov Telescopes. As ultraheavy dark
                      matter (UHDM; M $_{χ}$ ≳ 100 TeV) has been suggested as
                      an underexplored alternative to the WIMP paradigm, we search
                      for an indirect dark matter annihilation signal in a higher
                      mass range (up to 30 PeV) with the VERITAS γ-ray
                      observatory. With 216 hr of observations of four dwarf
                      spheroidal galaxies, we perform an unbinned likelihood
                      analysis. We find no evidence of a γ-ray signal from UHDM
                      annihilation above the background fluctuation for any
                      individual dwarf galaxy nor for a joint-fit analysis, and
                      consequently constrain the velocity-weighted annihilation
                      cross section of UHDM for dark matter particle masses
                      between 1 TeV and 30 PeV. We additionally set constraints on
                      the allowed radius of a composite UHDM particle.},
      keywords     = {dark matter: annihilation (INSPIRE) / dark matter: mass
                      (INSPIRE) / background: fluctuation (INSPIRE) / WIMP
                      (INSPIRE) / galaxy (INSPIRE) / TeV (INSPIRE) / VERITAS
                      (INSPIRE) / observatory (INSPIRE) / GeV (INSPIRE) /
                      composite (INSPIRE) / Cherenkov counter (INSPIRE) / imaging
                      (INSPIRE) / gamma ray: VHE (INSPIRE)},
      cin          = {$Z_VER$},
      ddc          = {520},
      cid          = {$I:(DE-H253)Z_VER-20210408$},
      pnm          = {613 - Matter and Radiation from the Universe (POF4-613)},
      pid          = {G:(DE-HGF)POF4-613},
      experiment   = {EXP:(DE-H253)VERITAS-20170101},
      typ          = {PUB:(DE-HGF)16},
      eprint       = {2302.08784},
      howpublished = {arXiv:2302.08784},
      archivePrefix = {arXiv},
      SLACcitation = {$\%\%CITATION$ = $arXiv:2302.08784;\%\%$},
      UT           = {WOS:000950838900001},
      doi          = {10.3847/1538-4357/acbc7b},
      url          = {https://bib-pubdb1.desy.de/record/490354},
}