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We derive the Cherenkov Telescope Array (CTA) sensitivity to dark matter (DM) annihilation in several primary channels, over a broad range of DM masses. These sensitivities are estimated when CTA is pointed towards a large sample of Milky…

High Energy Astrophysical Phenomena · Physics 2016-09-15 Valentin Lefranc , Paolo Panci , Gary A. Mamon

We revisit the simplest model for dark matter. In this context the dark matter candidate is a real scalar field which interacts with the Standard Model particles through the Higgs portal. We discuss the relic density constraints as well as…

High Energy Physics - Phenomenology · Physics 2016-06-29 Michael Duerr , Pavel Fileviez Perez , Juri Smirnov

Many models of dark matter (DM) are now widely considered and probed intensively with accelerators, underground detectors, and astrophysical experiments. Among the various approaches, high-energy astrophysical observations are extremely…

High Energy Astrophysical Phenomena · Physics 2023-10-04 Nagisa Hiroshima

Next-generation dark matter direct detection experiments will explore several orders of magnitude in the dark matter--nucleus scattering cross section below current upper limits. In case a signal is discovered the immediate task will be to…

High Energy Physics - Phenomenology · Physics 2019-10-14 Juan Herrero-Garcia , Yannick Müller , Thomas Schwetz

For some time, the Draco dwarf spheroidal galaxy has garnered interest as a possible source for the indirect detection of dark matter. Its large mass-to-light ratio and relative proximity to the Earth provide favorable conditions for the…

The MAGIC 17m-diameter Imaging Air Cherenkov Telescope (IACT) has been commissioned beginning of 2005. The telescope has been designed to achieve the lower detection energy threshold ever obtained with an IACT, about 50 GeV. A new window in…

Astrophysics · Physics 2007-05-23 J. Flix

The Milky Way halo is the brightest source of dark matter annihilation on the sky. Indeed, the potential strength of the Galactic dark matter signal can supersede that expected from dwarf galaxies and galaxy groups even in regions away from…

Cosmology and Nongalactic Astrophysics · Physics 2018-12-20 Laura J. Chang , Mariangela Lisanti , Siddharth Mishra-Sharma

Photons produced in the annihilations of dark matter particles can be detected by gamma-ray telescopes; this technique of indirect detection serves as a cornerstone of the upcoming assault on the dark matter paradigm. The main obstacle to…

Cosmology and Nongalactic Astrophysics · Physics 2011-07-08 Eric J. Baxter , Scott Dodelson

To reveal natures of the dark matter (DM) particles, a gamma-ray signal produced in annihilation processes of DM into the standard model particles has been one of the major probes. The cross-correlation between highly DM dominated…

Cosmology and Nongalactic Astrophysics · Physics 2022-02-04 Daiki Hashimoto , Atsushi J. Nishizawa , Masahiro Takada

The central region of the dark matter halo of the Milky Way is a promising target for a search for a particle dark matter annihilation signal. The H.E.S.S. Collaboration has published a search for a photon flux originating from dark matter…

High Energy Astrophysical Phenomena · Physics 2013-03-06 Gerrit Spengler , Ullrich Schwanke

The presence of dark matter in the Universe is nowadays widely supported by a large body of astronomical and cosmological observations. The central region of the Milky Way is expected to harbor a large amount of dark matter.…

High Energy Astrophysical Phenomena · Physics 2019-08-14 Lucia Rinchiuso , Emmanuel Moulin

We perform a joint analysis of dwarf galaxy data from the Fermi Gamma-ray Space Telescope in search of dark matter annihilation into a gamma-ray line. We employ a novel statistical method that takes into account the spatial and spectral…

High Energy Astrophysical Phenomena · Physics 2012-09-10 Alex Geringer-Sameth , Savvas M. Koushiappas

Upcoming $\gamma$-ray satellites will search for Dark Matter annihilations in Milky Way substructures (or 'clumps'). The prospects for detecting these objects strongly depend on the assumptions made on the distribution of Dark Matter in…

Astrophysics · Physics 2008-11-26 L. Pieri , G. Bertone , E Branchini

High-energy gamma rays are promising tools to constrain or reveal the nature of dark matter, in particular Weakly Interacting Massive Particles. Being well into its pre-construction phase, the Cherenkov Telescope Array (CTA) will soon probe…

High Energy Astrophysical Phenomena · Physics 2021-08-23 Christopher Eckner

Atmospheric Cerenkov Telescopes, including HESS and MAGIC, have detected a spectrum of gamma-rays from the galactic center region which extends from $\sim$200 GeV or lower, to at least $\sim$10 TeV. Although the source of this radiation is…

Astrophysics · Physics 2008-11-26 Gabrijela Zaharijas , Dan Hooper

We study the gamma rays observed by the Fermi Gamma Ray Space Telescope from the direction of the Galactic Center and find that their angular distribution and energy spectrum are well described by a dark matter annihilation scenario. In…

High Energy Physics - Phenomenology · Physics 2009-11-11 Lisa Goodenough , Dan Hooper

The High Altitude Water Cherenkov (HAWC) gamma-ray observatory is a wide field-of-view observatory sensitive to 0.5 TeV - 100 TeV gamma-rays and cosmic-rays in the State of Puebla, Mexico at an altitude of 4100m. The HAWC observatory…

High Energy Astrophysical Phenomena · Physics 2019-08-13 Tolga Yapici , Andrew J. Smith

For decades, searches for electroweak-scale dark matter (DM) have been performed without a definitive detection. This lack of success may hint that DM searches have focused on the wrong mass range. A proposed candidate beyond the canonical…

High Energy Astrophysical Phenomena · Physics 2022-10-26 Donggeun Tak , Matthew Baumgart , Nicholas L. Rodd , Elisa Pueschel
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