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@ARTICLE{Tak:576705,
      author       = {Tak, Donggeun and Pueschel, E. and Baumgart, M. and Rodd,
                      N. L. and Acharyya, A. and Archer, A. and Bangale, P. and
                      Bartkoske, J. T. and Batista, P. 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, T. K. 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, K.
                      and Pohl, Martin and Quinn, J. and Ragan, K. and Reynolds,
                      P. T. and Roache, E. and Ryan, J. L. and Sadeh, I. and Saha,
                      L. and Santander, M. and Sembroski, G. H. and Shang, R. and
                      Splettstoesser, M. and Tucci, J. V. and Vassiliev, V. V. and
                      Williams, D. A.},
      collaboration = {{VERITAS Collaboration}},
      title        = {{S}earch for {U}ltraheavy {D}ark {M}atter from
                      {O}bservations of {D}warf {S}pheroidal {G}alaxies with
                      {VERITAS}},
      reportid     = {PUBDB-2023-00876, arXiv:2302.08784},
      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
                      $\lesssim M_{\chi} \lesssim$ 100 TeV), a mass range
                      accessible with current Imaging Atmospheric Cherenkov
                      Telescopes. As ultraheavy dark matter (UHDM; $M_{\chi}
                      \gtrsim$ 100 TeV) has been suggested as an under-explored
                      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 gamma-ray observatory. With 216
                      hours of observations of four dwarf spheroidal galaxies, we
                      perform an unbinned likelihood analysis. We find no evidence
                      of a $\gamma$-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) / background,
                      fluctuation (INSPIRE) / cross section, annihilation
                      (INSPIRE) / WIMP (INSPIRE) / galaxy (INSPIRE) / TeV
                      (INSPIRE) / VERITAS (INSPIRE) / observatory (INSPIRE) / GeV
                      (INSPIRE) / composite (INSPIRE) / Cherenkov counter
                      (INSPIRE) / imaging (INSPIRE) / gamma ray (INSPIRE)},
      cin          = {$Z_VER$},
      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)25},
      eprint       = {2302.08784},
      howpublished = {arXiv:2302.08784},
      archivePrefix = {arXiv},
      SLACcitation = {$\%\%CITATION$ = $arXiv:2302.08784;\%\%$},
      url          = {https://bib-pubdb1.desy.de/record/576705},
}