Search for very high energy gamma rays from WIMP annihilations near the Sun with the Milagro detector

R. Atkins, W. Benbow, D. Berley, E. Blaufuss, J. Bussons, D. G. Coyne, T. DeYoung, B. L. Dingus, D. E. Dorfan, R. W. Ellsworth, L. Fleysher, Roman Fleysher, G. Gisler, M. M. Gonzalez, J. A. Goodman, T. J. Haines, E. Hays, C. M. Hoffman, L. A. Kelley, C. P. Lansdell & 18 others J. T. Linnemann, J. E. McEnery, R. S. Miller, A. I. Mincer, M. F. Morales, P. Nemethy, D. Noyes, J. M. Ryan, F. W. Samuelson, A. Shoup, G. Sinnis, A. J. Smith, G. W. Sullivan, D. A. Williams, S. Westerhoff, M. E. Wilson, X. W. Xu, G. B. Yodh

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

The neutralino, the lightest stable supersymmetric particle, is a strong theoretical candidate for the missing astronomical "dark matter". A profusion of such neutralinos can accumulate near the Sun when they lose energy upon scattering and are gravitationally captured. Pair-annihilations of those neutralinos may produce very high-energy (VHE, above 100 GeV) gamma rays. Milagro is an air shower array which uses the water Cherenkov technique to detect extensive-air showers and is capable of observing VHE gamma rays from the direction of the Sun with an angular resolution of 0.75°. Analysis of Milagro data with an exposure to the Sun of 1165 hours presents the first attempt to detect TeV gamma rays produced by annihilating neutralinos captured by the Solar system and shows no statistically significant signal. Resulting limits that can be set on the gamma-ray flux due to near-Solar neutralino annihilations and on the neutralino cross-section are presented.

Original languageEnglish (US)
Article number083516
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume70
Issue number8
DOIs
StatePublished - 2004
Externally publishedYes

Fingerprint

weakly interacting massive particles
Gamma Rays
Annihilation
Sun
High Energy
sun
Detector
gamma rays
detectors
cosmic ray showers
Extensive Air Showers
energy
Dark Matter
Accumulate
angular resolution
solar system
dark matter
Cross section
Scattering
Water

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Nuclear and High Energy Physics
  • Mathematical Physics

Cite this

Search for very high energy gamma rays from WIMP annihilations near the Sun with the Milagro detector. / Atkins, R.; Benbow, W.; Berley, D.; Blaufuss, E.; Bussons, J.; Coyne, D. G.; DeYoung, T.; Dingus, B. L.; Dorfan, D. E.; Ellsworth, R. W.; Fleysher, L.; Fleysher, Roman; Gisler, G.; Gonzalez, M. M.; Goodman, J. A.; Haines, T. J.; Hays, E.; Hoffman, C. M.; Kelley, L. A.; Lansdell, C. P.; Linnemann, J. T.; McEnery, J. E.; Miller, R. S.; Mincer, A. I.; Morales, M. F.; Nemethy, P.; Noyes, D.; Ryan, J. M.; Samuelson, F. W.; Shoup, A.; Sinnis, G.; Smith, A. J.; Sullivan, G. W.; Williams, D. A.; Westerhoff, S.; Wilson, M. E.; Xu, X. W.; Yodh, G. B.

In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 70, No. 8, 083516, 2004.

Research output: Contribution to journalArticle

Atkins, R, Benbow, W, Berley, D, Blaufuss, E, Bussons, J, Coyne, DG, DeYoung, T, Dingus, BL, Dorfan, DE, Ellsworth, RW, Fleysher, L, Fleysher, R, Gisler, G, Gonzalez, MM, Goodman, JA, Haines, TJ, Hays, E, Hoffman, CM, Kelley, LA, Lansdell, CP, Linnemann, JT, McEnery, JE, Miller, RS, Mincer, AI, Morales, MF, Nemethy, P, Noyes, D, Ryan, JM, Samuelson, FW, Shoup, A, Sinnis, G, Smith, AJ, Sullivan, GW, Williams, DA, Westerhoff, S, Wilson, ME, Xu, XW & Yodh, GB 2004, 'Search for very high energy gamma rays from WIMP annihilations near the Sun with the Milagro detector', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 70, no. 8, 083516. https://doi.org/10.1103/PhysRevD.70.083516
Atkins, R. ; Benbow, W. ; Berley, D. ; Blaufuss, E. ; Bussons, J. ; Coyne, D. G. ; DeYoung, T. ; Dingus, B. L. ; Dorfan, D. E. ; Ellsworth, R. W. ; Fleysher, L. ; Fleysher, Roman ; Gisler, G. ; Gonzalez, M. M. ; Goodman, J. A. ; Haines, T. J. ; Hays, E. ; Hoffman, C. M. ; Kelley, L. A. ; Lansdell, C. P. ; Linnemann, J. T. ; McEnery, J. E. ; Miller, R. S. ; Mincer, A. I. ; Morales, M. F. ; Nemethy, P. ; Noyes, D. ; Ryan, J. M. ; Samuelson, F. W. ; Shoup, A. ; Sinnis, G. ; Smith, A. J. ; Sullivan, G. W. ; Williams, D. A. ; Westerhoff, S. ; Wilson, M. E. ; Xu, X. W. ; Yodh, G. B. / Search for very high energy gamma rays from WIMP annihilations near the Sun with the Milagro detector. In: Physical Review D - Particles, Fields, Gravitation and Cosmology. 2004 ; Vol. 70, No. 8.
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T1 - Search for very high energy gamma rays from WIMP annihilations near the Sun with the Milagro detector

AU - Atkins, R.

AU - Benbow, W.

AU - Berley, D.

AU - Blaufuss, E.

AU - Bussons, J.

AU - Coyne, D. G.

AU - DeYoung, T.

AU - Dingus, B. L.

AU - Dorfan, D. E.

AU - Ellsworth, R. W.

AU - Fleysher, L.

AU - Fleysher, Roman

AU - Gisler, G.

AU - Gonzalez, M. M.

AU - Goodman, J. A.

AU - Haines, T. J.

AU - Hays, E.

AU - Hoffman, C. M.

AU - Kelley, L. A.

AU - Lansdell, C. P.

AU - Linnemann, J. T.

AU - McEnery, J. E.

AU - Miller, R. S.

AU - Mincer, A. I.

AU - Morales, M. F.

AU - Nemethy, P.

AU - Noyes, D.

AU - Ryan, J. M.

AU - Samuelson, F. W.

AU - Shoup, A.

AU - Sinnis, G.

AU - Smith, A. J.

AU - Sullivan, G. W.

AU - Williams, D. A.

AU - Westerhoff, S.

AU - Wilson, M. E.

AU - Xu, X. W.

AU - Yodh, G. B.

PY - 2004

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N2 - The neutralino, the lightest stable supersymmetric particle, is a strong theoretical candidate for the missing astronomical "dark matter". A profusion of such neutralinos can accumulate near the Sun when they lose energy upon scattering and are gravitationally captured. Pair-annihilations of those neutralinos may produce very high-energy (VHE, above 100 GeV) gamma rays. Milagro is an air shower array which uses the water Cherenkov technique to detect extensive-air showers and is capable of observing VHE gamma rays from the direction of the Sun with an angular resolution of 0.75°. Analysis of Milagro data with an exposure to the Sun of 1165 hours presents the first attempt to detect TeV gamma rays produced by annihilating neutralinos captured by the Solar system and shows no statistically significant signal. Resulting limits that can be set on the gamma-ray flux due to near-Solar neutralino annihilations and on the neutralino cross-section are presented.

AB - The neutralino, the lightest stable supersymmetric particle, is a strong theoretical candidate for the missing astronomical "dark matter". A profusion of such neutralinos can accumulate near the Sun when they lose energy upon scattering and are gravitationally captured. Pair-annihilations of those neutralinos may produce very high-energy (VHE, above 100 GeV) gamma rays. Milagro is an air shower array which uses the water Cherenkov technique to detect extensive-air showers and is capable of observing VHE gamma rays from the direction of the Sun with an angular resolution of 0.75°. Analysis of Milagro data with an exposure to the Sun of 1165 hours presents the first attempt to detect TeV gamma rays produced by annihilating neutralinos captured by the Solar system and shows no statistically significant signal. Resulting limits that can be set on the gamma-ray flux due to near-Solar neutralino annihilations and on the neutralino cross-section are presented.

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