Projects per year
Abstract
Imaging atmospheric Cherenkov telescopes (IACTs) that are sensitive to potential γ-ray signals from dark matter (DM) annihilation above ∼50 GeV will soon be superseded by the Cherenkov Telescope Array (CTA). CTA will have a point source sensitivity an order of magnitude better than currently operating IACTs and will cover a broad energy range between 20 GeV and 300 TeV. Using effective field theory and simplified models to calculate γ-ray spectra resulting from DM annihilation, we compare the prospects to constrain such models with CTA observations of the Galactic center with current and near-future measurements at the Large Hadron Collider (LHC) and direct detection experiments. For DM annihilations via vector or pseudoscalar couplings, CTA observations will be able to probe DM models out of reach of the LHC, and, if DM is coupled to standard fermions by a pseudoscalar particle, beyond the limits of current direct detection experiments.
Original language | English |
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Article number | 083002 |
Number of pages | 20 |
Journal | Physical Review D |
Volume | 96 |
Issue number | 8 |
DOIs | |
Publication status | Published - 15 Oct 2017 |
Keywords
- Dark matter
- Positron fraction
- Cosmic rays
Projects
- 1 Finished
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ARC Centre of Excellence for Particle Physics at the Tera-Scale
Balazs, C. (Primary Chief Investigator (PCI)), Barberio, E. (Chief Investigator (CI)), Bell, N. (Chief Investigator (CI)), Gherghetta, T. (Chief Investigator (CI)), Limosani, A. (Chief Investigator (CI)), Sevior, M. (Chief Investigator (CI)), Taylor, G. (Chief Investigator (CI)), Thomas, A. (Chief Investigator (CI)), Varvell, K. (Chief Investigator (CI)), Volkas, R. (Chief Investigator (CI)), Williams, A. G. (Chief Investigator (CI)), Yabsley, B. (Chief Investigator (CI)), Young, R. D. (Chief Investigator (CI)), Clarke, A. (Partner Investigator (PI)), Jakobs, C. (Partner Investigator (PI)), Kruse, M. (Partner Investigator (PI)), Meroni, C. (Partner Investigator (PI)), Parker, M. (Partner Investigator (PI)) & Trodden, M. (Partner Investigator (PI))
ARC - Australian Research Council
1/01/11 → 31/12/18
Project: Research