Search for Ultraheavy Dark Matter from Observations of Dwarf Spheroidal Galaxies with VERITAS

A. Acharyya; A. Archer; P. Bangale; J. T. Bartkoske; P. Batista; M. Baumgart; W. Benbow; J. H. Buckley; A. Falcone; Q. Feng; J. P. Finley; G. M. Foote; L. Fortson; A. Furniss; G. Gallagher; W. F. Hanlon; O. Hervet; J. Hoang; J. Holder; T. B. Humensky; W. Jin; P. Kaaret; M. Kertzman; M. Kherlakian; D. Kieda; T. K. Kleiner; N. Korzoun; F. Krennrich; M. J. Lang; M. Lundy; G. Maier; C. E. McGrath; P. Moriarty; S. O’Brien; R. A. Ong; K. Pfrang; M. Pohl; E. Pueschel; J. Quinn; K. Ragan; P. T. Reynolds; E. Roache; N. L. Rodd; J. L. Ryan; I. Sadeh; L. Saha; M. Santander; G. H. Sembroski; R. Shang; M. Splettstoesser; D. Tak; J. V. Tucci; V. V. Vassiliev; D. A. Williams

doi:10.3847/1538-4357/acbc7b

Search for Ultraheavy Dark Matter from Observations of Dwarf Spheroidal Galaxies with VERITAS

A. Acharyya, A. Archer, P. Bangale, J. T. Bartkoske, P. Batista, M. Baumgart, W. Benbow, J. H. Buckley, A. Falcone, Q. Feng, J. P. Finley, G. M. Foote, L. Fortson, A. Furniss, G. Gallagher, W. F. Hanlon, O. Hervet, J. Hoang, J. Holder, T. B. HumenskyW. Jin, P. Kaaret, M. Kertzman, M. Kherlakian, D. Kieda, T. K. Kleiner, N. Korzoun, F. Krennrich, M. J. Lang, M. Lundy, G. Maier, C. E. McGrath, P. Moriarty, S. O’Brien, R. A. Ong, K. Pfrang, M. Pohl, E. Pueschel, J. Quinn, K. Ragan, P. T. Reynolds, E. Roache, N. L. Rodd, J. L. Ryan, I. Sadeh, L. Saha, M. Santander, G. H. Sembroski, R. Shang, M. Splettstoesser, D. Tak, J. V. Tucci, V. V. Vassiliev, D. A. Williams

Physics

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

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.

Original language	English (US)
Article number	101
Journal	Astrophysical Journal
Volume	945
Issue number	2
DOIs	https://doi.org/10.3847/1538-4357/acbc7b
State	Published - Mar 1 2023

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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Acharyya, A., Archer, A., Bangale, P., Bartkoske, J. T., Batista, P., Baumgart, M., Benbow, W., Buckley, J. H., Falcone, A., Feng, Q., Finley, J. P., Foote, G. M., Fortson, L., Furniss, A., Gallagher, G., Hanlon, W. F., Hervet, O., Hoang, J., Holder, J., ... Williams, D. A. (2023). Search for Ultraheavy Dark Matter from Observations of Dwarf Spheroidal Galaxies with VERITAS. Astrophysical Journal, 945(2), Article 101. https://doi.org/10.3847/1538-4357/acbc7b

Acharyya, A, Archer, A, Bangale, P, Bartkoske, JT, Batista, P, Baumgart, M, Benbow, W, Buckley, JH, Falcone, A, Feng, Q, Finley, JP, Foote, GM, Fortson, L, Furniss, A, Gallagher, G, Hanlon, WF, Hervet, O, Hoang, J, Holder, J, Humensky, TB, Jin, W, Kaaret, P, Kertzman, M, Kherlakian, M, Kieda, D, Kleiner, TK, Korzoun, N, Krennrich, F, Lang, MJ, Lundy, M, Maier, G, McGrath, CE, Moriarty, P, O’Brien, S, Ong, RA, Pfrang, K, Pohl, M, Pueschel, E, Quinn, J, Ragan, K, Reynolds, PT, Roache, E, Rodd, NL, Ryan, JL, Sadeh, I, Saha, L, Santander, M, Sembroski, GH, Shang, R, Splettstoesser, M, Tak, D, Tucci, JV, Vassiliev, VV & Williams, DA 2023, 'Search for Ultraheavy Dark Matter from Observations of Dwarf Spheroidal Galaxies with VERITAS', Astrophysical Journal, vol. 945, no. 2, 101. https://doi.org/10.3847/1538-4357/acbc7b

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title = "Search for Ultraheavy Dark Matter from Observations of Dwarf Spheroidal Galaxies with VERITAS",

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.",

author = "A. Acharyya and A. Archer and P. Bangale and Bartkoske, {J. T.} and P. Batista and M. Baumgart and W. Benbow and Buckley, {J. H.} and A. Falcone and Q. Feng and Finley, {J. P.} and Foote, {G. M.} and L. Fortson and A. Furniss and G. Gallagher and Hanlon, {W. F.} and O. Hervet and J. Hoang and J. Holder and Humensky, {T. B.} and W. Jin and P. Kaaret and M. Kertzman and M. Kherlakian and D. Kieda and Kleiner, {T. K.} and N. Korzoun and F. Krennrich and Lang, {M. J.} and M. Lundy and G. Maier and McGrath, {C. E.} and P. Moriarty and S. O{\textquoteright}Brien and Ong, {R. A.} and K. Pfrang and M. Pohl and E. Pueschel and J. Quinn and K. Ragan and Reynolds, {P. T.} and E. Roache and Rodd, {N. L.} and Ryan, {J. L.} and I. Sadeh and L. Saha and M. Santander and Sembroski, {G. H.} and R. Shang and M. Splettstoesser and D. Tak and Tucci, {J. V.} and Vassiliev, {V. V.} and Williams, {D. A.}",

note = "Publisher Copyright: {\textcopyright} 2023. The Author(s). Published by the American Astronomical Society.",

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doi = "10.3847/1538-4357/acbc7b",

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T1 - Search for Ultraheavy Dark Matter from Observations of Dwarf Spheroidal Galaxies with VERITAS

AU - Acharyya, A.

AU - Archer, A.

AU - Bangale, P.

AU - Bartkoske, J. T.

AU - Batista, P.

AU - Baumgart, M.

AU - Benbow, W.

AU - Buckley, J. H.

AU - Falcone, A.

AU - Feng, Q.

AU - Finley, J. P.

AU - Foote, G. M.

AU - Fortson, L.

AU - Furniss, A.

AU - Gallagher, G.

AU - Hanlon, W. F.

AU - Hervet, O.

AU - Hoang, J.

AU - Holder, J.

AU - Humensky, T. B.

AU - Jin, W.

AU - Kaaret, P.

AU - Kertzman, M.

AU - Kherlakian, M.

AU - Kieda, D.

AU - Kleiner, T. K.

AU - Korzoun, N.

AU - Krennrich, F.

AU - Lang, M. J.

AU - Lundy, M.

AU - Maier, G.

AU - McGrath, C. E.

AU - Moriarty, P.

AU - O’Brien, S.

AU - Ong, R. A.

AU - Pfrang, K.

AU - Pohl, M.

AU - Pueschel, E.

AU - Quinn, J.

AU - Ragan, K.

AU - Reynolds, P. T.

AU - Roache, E.

AU - Rodd, N. L.

AU - Ryan, J. L.

AU - Sadeh, I.

AU - Saha, L.

AU - Santander, M.

AU - Sembroski, G. H.

AU - Shang, R.

AU - Splettstoesser, M.

AU - Tak, D.

AU - Tucci, J. V.

AU - Vassiliev, V. V.

AU - Williams, D. A.

PY - 2023/3/1

Y1 - 2023/3/1

N2 - 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.

AB - 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.

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VL - 945

JO - Astrophysical Journal

JF - Astrophysical Journal

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M1 - 101

ER -

Search for Ultraheavy Dark Matter from Observations of Dwarf Spheroidal Galaxies with VERITAS

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