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We show, by using an extensive sample of viable supersymmetric models as templates, that indirect detection of dark matter through gamma rays may have a large potential for identifying the nature of dark matter. This is in particular true…

High Energy Physics - Phenomenology · Physics 2011-03-23 Lars Bergstrom , Torsten Bringmann , Joakim Edsjo

We present a new formalism designed to discover dark matter annihilation occurring in the Milky Way's dwarf galaxies. The statistical framework extracts all available information in the data by simultaneously combining observations of all…

Cosmology and Nongalactic Astrophysics · Physics 2015-04-28 Alex Geringer-Sameth , Savvas M. Koushiappas , Matthew G. Walker

If dark matter inhabits an expanded "hidden sector", annihilations may proceed through sequential decays or multi-body final states. We map out the potential signals and current constraints on such a framework in indirect searches, using a…

High Energy Physics - Phenomenology · Physics 2016-07-05 Gilly Elor , Nicholas L. Rodd , Tracy R. Slatyer , Wei Xue

Indirect detection is one of the most powerful methods to search for annihilating dark matter. In this work, we investigate the impact of non-perturbative effects in the indirect detection of dark matter. For this purpose we utilize a…

High Energy Physics - Phenomenology · Physics 2024-03-29 Simone Biondini , Julian Bollig , Stefan Vogl

Searches for annihilating dark matter are often designed with a specific dark matter candidate in mind. However, the space of potential dark matter models is vast, which raises the question: how can we search for dark matter without making…

High Energy Astrophysical Phenomena · Physics 2025-09-04 Liam Pinchbeck , Csaba Balazs , Eric Thrane

Dark matter is thought to make up most of the matter density of the Universe, yet its true nature remains uncertain. Among dark matter theories, Weakly Interacting Massive Particles (WIMPs) are a prominent candidate for dark matter because…

High Energy Astrophysical Phenomena · Physics 2023-09-20 Micael Andrade , Aion Viana

Dark matter is one of the most important open problems in particle physics and cosmology. Weakly interacting massive particles (WIMPs) appear as an appealing solution, providing the right relic density with a cross-section at the…

High Energy Physics - Phenomenology · Physics 2021-10-04 C. Siqueira , Guilherme N. Fortes , Aion Viana , Farinaldo Queiroz

Using limits on photon flux from Dwarf Spheroidal galaxies, we place bounds on the parameter space of models in which Dark Matter annihilates into multiple final state particle pair channels. We derive constraints on effective operator…

High Energy Physics - Phenomenology · Physics 2015-11-11 Linda M. Carpenter , Russell Colburn , Jessica Goodman

The details of what constitutes the majority of the mass that makes up dark matter in the Universe remains one of the prime puzzles of cosmology and particle physics today - eighty years after the first observational indications. Today, it…

High Energy Astrophysical Phenomena · Physics 2015-12-16 Stefan Funk

Dark matter annihilations have been fiercely restricted by the non-observation of excess events in indirect detection probes. Typically the interactions that dictate annihilation are also present in the dark matter-nucleon scattering cross…

High Energy Physics - Phenomenology · Physics 2019-05-08 Farinaldo S. Queiroz , Clarissa Siqueira

The High Altitude Water Cherenkov (HAWC) gamma-ray observatory is a wide field of view observatory sensitive to 500 GeV - 100 TeV gamma rays and cosmic rays. It can also perform diverse indirect searches for dark matter (DM) annihilation…

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

Annihilation of dark matter can result in the production of stable Standard Model particles including electrons and positrons that, in the presence of magnetic fields, lose energy via synchrotron radiation, observable as radio emission.…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 Emma Storm , Tesla E. Jeltema , Stefano Profumo , Lawrence Rudnick

Dark matter is a key piece of the current cosmological scenario, with weakly interacting massive particles (WIMPs) a leading dark matter candidate. WIMPs have not been detected in their conventional parameter space (100 GeV $\lesssim…

Several astrophysical and cosmological observations suggest the existence of dark matter (DM) through its gravitational effects, yet its nature remains elusive. Despite the lack of DM signals from direct detection experiments, efforts…

High Energy Astrophysical Phenomena · Physics 2025-06-04 Aman Gupta , Pooja Bhattacharjee , Pratik Majumdar

The dark matter halo of the Milky Way is predicted to contain a very large number of smaller subhalos. As a result of the dark matter annihilations taking place within such objects, the most nearby and massive subhalos could appear as…

High Energy Physics - Phenomenology · Physics 2014-01-22 Asher Berlin , Dan Hooper

Dark matter (DM) is largely believed to be the dominant component of the matter content of the Universe. Astronomical measurements can be utilized to search for Standard Model (SM) annihilation or decay products of DM, complementing direct…

High Energy Astrophysical Phenomena · Physics 2021-08-16 Chiara Giuri

We consider dark matter annihilation into Standard Model particles and show that the least detectable final states, namely neutrinos, define an upper bound on the total cross section. Calculating the cosmic diffuse neutrino signal, and…

Astrophysics · Physics 2008-11-26 John F. Beacom , Nicole F. Bell , Gregory D. Mack

Dwarf spheroidal galaxies compose one of the most dark matter dominated classes of objects, making them a set of targets to search for signals of dark matter annihilation. Recent developments in gamma-ray astronomy, most importantly the…

High Energy Astrophysical Phenomena · Physics 2012-11-14 Ilias Cholis , Paolo Salucci

Cosmological and astrophysical observations suggest that 85\% of the total matter of the Universe is made of Dark Matter (DM). However, its nature remains one of the most challenging and fundamental open questions of particle physics.…

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