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An ever-increasing body of evidence suggests that weakly interacting massive particles (WIMPs) constitute the bulk of the matter in the Universe. We illustrate how experimental data, dimensional analysis and Standard Model particle physics…

Astrophysics · Physics 2007-05-23 F. Halzen

Observations of dwarf galaxies and of the Milky Way halo with current ground-based Cherenkov telescopes have resulted in interesting limits on the cross-section for dark matter (DM) self- annihilation for WIMP masses above some 100 GeV. The…

High Energy Astrophysical Phenomena · Physics 2019-08-14 Louise Oakes , Emrah Birsin , Gernot Maier , Ullrich Schwanke

This work analyzes the detection prospects for weakly interacting massive particles (WIMPs) in dark matter (DM) density spikes around nearby supermassive black holes (SMBHs) by observations in very high energy gamma-ray band. Such spikes…

High Energy Astrophysical Phenomena · Physics 2025-12-12 Andrei E. Egorov

A TeV scale electroweak particle is a well motivated candidate for the dark matter (DM) of our Universe. Yet such a particle may only be detectable using indirect detection instruments sensitive to TeV-scale gamma rays that can result from…

High Energy Astrophysical Phenomena · Physics 2019-09-05 Lucia Rinchiuso , Nicholas L. Rodd , Emmanuel Moulin , Tracy R. Slatyer

Weakly Interacting Massive Particles (WIMPs), are a leading candidate for the dark matter that is observed to constitute ~25% of the total mass-energy density of the Universe. The direct detection of relic WIMPs (those produced during the…

Instrumentation and Detectors · Physics 2017-08-23 Tarek Saab

Dark matter (DM) constitutes around a 25% of the Universe, while baryons only a 4%. DM can be reasonably assumed to be made of particles, and many theories (Super-symmetry, Universal Extra Dimensions, etc.) predict Weakly Interacting…

High Energy Astrophysical Phenomena · Physics 2022-03-02 A. Morselli , B. Canadas , V. Vitale

Dark matter (DM) is one of the major components in the Universe. However, at present its existence is still only inferred through indirect astronomical observations. DM particles can annihilate or decay, producing final-state Standard Model…

High Energy Astrophysical Phenomena · Physics 2023-09-19 Francesco Gabriele Saturni , Michele Doro , Aldo Morselli , Gonzalo Rodríguez-Fernández

In the cosmological paradigm, cold Dark Matter (DM) dominates the mass content of the Universe and is present at every scale. Candidates for DM include many extensions of the standard model, with a weakly interacting massive particle (WIMP)…

High Energy Astrophysical Phenomena · Physics 2019-08-13 Matthieu Vivier

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

Weakly interacting massive dark matter (DM) particles are expected to self-annihilate or decay, generating high-energy photons in these processes. This establishes the possibility for indirect detection of DM by \gamma-ray telescopes. For…

Cosmology and Nongalactic Astrophysics · Physics 2015-08-17 Moritz Hütten , Gernot Maier

In the last decades an incredible amount of evidence for the existence of dark matter (DM) has been accumulating. At the same time, many efforts have been undertaken to try to identify what dark matter is made of. Indirect searches look at…

High Energy Astrophysical Phenomena · Physics 2023-02-23 Aldo Morselli

About one-fourth of the universe is thought to consist of dark matter. Yet there is no clear understanding about the nature of these particles. Commonly discussed dark matter candidates includes the so called WIMPs or weakly interacting…

Cosmology and Nongalactic Astrophysics · Physics 2014-02-12 C Sivaram , Kenath Arun

Imaging atmospheric Cherenkov telescopes (IACTs) that are sensitive to potential $\gamma$-ray signals from dark matter (DM) annihilation above $\sim50$ GeV will soon be superseded by the Cherenkov Telescope Array (CTA). CTA will have a…

High Energy Astrophysical Phenomena · Physics 2017-10-11 Csaba Balázs , Jan Conrad , Ben Farmer , Thomas Jacques , Tong Li , Manuel Meyer , Farinaldo S. Queiroz , Miguel A. Sánchez-Conde

An ever-increasing body of evidence suggests that weakly interacting massive particles (WIMPs) constitute the bulk of the matter in the Universe. Experimental data, dimensional analysis and Standard Model particle physics are sufficient to…

High Energy Physics - Phenomenology · Physics 2007-05-23 F. Halzen

For many working in particle physics and cosmology successful discovery and characterisation of the new particles that most likely explain the non-baryonic cold dark matter, known to comprise the majority of matter in the Universe, would be…

Astrophysics · Physics 2009-06-23 N. J. Spooner

Cosmic electrons, positrons, protons, and antiprotons carry essential information about both astrophysical processes and fundamental physics. Charged particles provide signatures of dark matter annihilation or decay, \emph{in situ} in the…

High Energy Astrophysical Phenomena · Physics 2013-05-02 J. Vandenbroucke , B. Humensky , J. Holder , R. A. Ong

The recent WMAP data have confirmed that exotic dark matter together with the vacuum energy (cosmological constant) dominate in the flat Universe. Modern particle theories naturally provide viable cold dark matter candidates with masses in…

Cosmology and Nongalactic Astrophysics · Physics 2009-12-17 J. D. Vergados , Ch. C. Moustakidis

We investigate the prospect of detecting the Dark Matter (DM) candidate in the three-loop radiative neutrino mass generation model extended with large electroweak multiplets of the Standard Model (SM) gauge group, at the future imaging…

High Energy Physics - Phenomenology · Physics 2021-02-24 Talal Ahmed Chowdhury , Saquib Hassan , Jahid Hossain , Salah Nasri , Mahmud Ashraf Shamim

The existence of dark matter was suggested, using simple gravitational arguments, seventy years ago. Although we are now convinced that most of the mass in the Universe is indeed some non-luminous matter, we still do not know its…

High Energy Physics - Phenomenology · Physics 2009-11-10 Carlos Munoz

The annihilations of WIMPs produce high energy gamma-rays in the final state. These high energy gamma-rays may be detected by imaging atmospheric Cherenkov telescopes (IACTs). Amongst the plausible targets are the Galactic Center, the…

High Energy Astrophysical Phenomena · Physics 2014-11-20 E. Moulin