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\title{Sensitivity of the Cherenkov Telescope Array to the Detection of a Dark Matter Signal in comparison to Direct Detection and Collider Experiments
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\author{\speaker{Manuel Meyer}\\
        
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        E-mail: \email{mameyer@stanford.edu
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\abstract{
  The search for gamma-ray signals from annihilating cold dark matter (DM) constitutes a complementary approach for DM searches at the LHC and direct detection experiments. The most prominent instruments suited for searches at gamma-ray energies are the Fermi Large Area Telescope and Imaging Atmospheric Cherenkov Telescopes (IACTs). 
The current generation of IACTs will soon be superseded with the Cherenkov Telescope Array (CTA), which will have a point source sensitivity an order of magnitude better than currently operating IACTs and cover a broader energy range between 20 GeV and 300 TeV. Using effective field theory and simplified models to calculate the gamma-ray spectra resulting from DM annihilation, we compare the prospects to constrain such models with CTA observations of the Galactic center with current and future measurements at the LHC and direct detection experiments. For DM annihilations that are neither velocity nor helicity suppressed, CTA will be able to probe DM models out of reach of the LHC, and, if DM couples to standard fermions via a pseudo-scalar particle, beyond the limits of current direct detection experiments. Only a combined effort of all experimental techniques will make a comprehensive search over the DM parameter space possible.
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\FullConference{7th Fermi Symposium 2017\\
		15-20 October 2017\\
		Garmisch-Partenkirchen, Germany}


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