Conveners
Parallel 7: Dark Matter
- Christopher Michael Karwin
M31 and M33 are the closest spiral galaxies and the largest members (together with the Milky Way) of the Local group, which makes them interesting targets for indirect dark matter searches. In this paper we present studies of the expected sensitivity of the Cherenkov Telescope Array (CTA) to an annihilation signal from weakly interacting massive particles from M31 and M33. We show that a 100 h...
Anomalies in multi-lepton data from the Large Hadron Collider (LHC) have been used to motivate for an extension to the Standard Model in the form of a second Higgs doublet and a singlet scalar (2HDM+$S$). Here we explore a dark matter candidate drawn from this model: a scalar particle that couples to the Standard Model through the 2HDM+$S$ degrees of freedom. Using the best-fit 2HDM+$S$ model...
The Galactic center excess (GCE) remains one of the most intriguing discoveries from the Fermi Large Area Telescope (LAT) observations. I will revisit characteristics of the GCE tested under an updated set of high-resolution galactic diffuse gamma-ray emission templates. This diffuse emission, which accounts for the bulk of the observed gamma rays, is ultimately due to cosmic-ray interactions...
The nature of Dark Matter (DM) is still an open question. This elusive kind of matter cannot be made of any of the known particles of the Standard Model (SM) of particle physics. Among the candidates proposed to explain the nature of DM, weakly interacting massive particles (WIMPs) are one of the preferred ones. They could be detected indirectly by observing the products of its annihilation...
Dark matter (DM) particles from the Galactic halo can be gravitationally trapped by the Sun, where they might annihilate into long-lived mediators, which are able to escape from the Sun and decay into different channels, with the production of gamma rays in the final states. All these processes are expected to yield an excess in the gamma-ray energy spectrum towards the Sun. We have...
