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The era of precision cosmology has revealed that about 85% of the matter in the universe is dark matter. Two well-motivated candidates are weakly interacting massive particles (WIMPs) and weakly interacting sub-eV particles (WISPs) (e.g.…

The extragalactic dark matter (DM) annihilation signal depends on the product of the clumping factor, <\delta^2>, and the velocity-weighted annihilation cross section, \sigma v. This "clumping factor-\sigma v" degeneracy can be broken by…

Cosmology and Nongalactic Astrophysics · Physics 2014-04-18 Kenny C. Y. Ng , Ranjan Laha , Sheldon Campbell , Shunsaku Horiuchi , Basudeb Dasgupta , Kohta Murase , John F. Beacom

We study pure weak eigenstate Dirac fermionic dark matters (DM). We consider WIMP with renormalizable interaction. According to results of direct searches and the nature of DM (electrical neutral and being a pure weak eigenstate), the…

High Energy Physics - Phenomenology · Physics 2013-08-28 Chun-Khiang Chua , Ron-Chou Hsieh

Dark matter (DM) constitutes the predominant portion of matter in our universe. Despite compelling evidence, the precise characteristics of DM remain elusive. Among the leading DM candidates are weakly-interacting massive particles, which…

Astrophysics of Galaxies · Physics 2024-11-12 Zi-Chang Zhang , Yong Tang

We search for dark matter annihilation from galaxy clusters in the energy range from 1-300 GeV using nearly 16 years of Fermi-LAT data. For this purpose, we use 350 galaxy clusters selected from the 2500 $\rm{deg^2}$ SPT-SZ survey. We model…

Cosmology and Nongalactic Astrophysics · Physics 2024-10-10 Siddhant Manna , Shantanu Desai

The nature of dark matter remains unresolved in fundamental physics. Weakly Interacting Massive Particles (WIMPs), which could explain the nature of dark matter, can be captured by celestial bodies like the Sun or Earth, leading to enhanced…

High Energy Astrophysical Phenomena · Physics 2024-12-18 The IceCube Collaboration

[Abridged] Indirect detection of dark matter (DM) by multi-wavelength astronomical observations provides a promising avenue for probing the particle nature of DM. In the case of DM consisting of Weakly-Interacting Massive Particles (WIMPs),…

High Energy Astrophysical Phenomena · Physics 2018-06-06 Alex McDaniel , Tesla Jeltema , Stefano Profumo

We calculate the radial profiles of galaxies where the nuclear region is self-gravitating, consisting of self-interacting dark matter (SIDM) with $F$ degrees of freedom. For sufficiently high density this dark matter becomes collisional,…

Astrophysics of Galaxies · Physics 2016-09-07 Curtis J. Saxton , Ziri Younsi , Kinwah Wu

Weakly Interacting Massive Particles (WIMPs) are one of the leading candidates for Dark Matter. So far the usual procedure for constraining the WIMP-nucleon cross sections in direct Dark Matter detection experiments have been to fit the…

High Energy Physics - Phenomenology · Physics 2011-07-05 Chung-Lin Shan

We discuss simple extensions of the Standard Model featuring a (fermionic) stable DM candidate interacting with SM fermions through a $Z^{'}$ mediator. These kind of models offer a wide phenomenology but result, at the same time,…

High Energy Physics - Phenomenology · Physics 2015-10-09 Giorgio Arcadi , Yann Mambrini , Mathias Pierre

Astrophysical and cosmological observations suggest the existence of beyond standard model ingredient known as dark matter (DM). One of the most supported class of theories suggests that DM is composed of weakly interactive massive…

Instrumentation and Detectors · Physics 2025-07-04 Giorgio Dho

The WIMP dark matter (DM) hypothesis now is in an awkward position, owing to the stronger and stronger exclusion from DM direct detection. In this article we design a mechanism to evade this constraint.The idea is simple. DM has a…

High Energy Physics - Phenomenology · Physics 2022-01-12 Jun Guo , Zhaofeng Kang , Peng Zhang

High-energy neutrinos provide a potentially powerful and distinctive probe for dark matter (DM) - neutrino interactions, particularly in environments with enhanced DM densities, such as the DM spikes predicted to form around supermassive…

High Energy Astrophysical Phenomena · Physics 2026-02-17 Khushboo Dixit , Gopolang Mohlabeng , Soebur Razzaque

The Cryogenic Dark Matter Search (CDMS) employs low-temperature Ge and Si detectors to search for Weakly Interacting Massive Particles (WIMPs) via their elastic-scattering interactions with nuclei while discriminating against interactions…

Astrophysics · Physics 2012-08-27 CDMS Collaboration

We present constraints on decaying and annihilating dark matter (DM) in the 4 keV to 10 GeV mass range, using published results from the satellites HEAO-1, INTEGRAL, COMPTEL, EGRET, and the Fermi Gamma-ray Space Telescope. We derive…

High Energy Physics - Phenomenology · Physics 2015-06-17 Rouven Essig , Eric Kuflik , Samuel D. McDermott , Tomer Volansky , Kathryn M. Zurek

The Dark Matter Particle Explorer (DAMPE) recently released measurements of the electron spectrum with a hint of a narrow peak at about 1.4 TeV. We investigate dark matter (DM) models that could produce such a signal by annihilation in a…

High Energy Physics - Phenomenology · Physics 2018-02-22 Peter Athron , Csaba Balazs , Andrew Fowlie , Yang Zhang

Weakly Interacting Massive Particles (WIMPs) are well-motivated candidates for Dark Matter (DM). WIMP models often include self-annihilation into Standard Model particles such as neutrinos which could potentially be detected by the IceCube…

High Energy Astrophysical Phenomena · Physics 2019-08-23 Sebastian Baur

Two new observations have strengthened the case for the supersymmetric nature of the Cold Dark Matter component in our universe: First, it was shown that new data on the nuclear abundance, B/C - and 10Be/9Be ratios constrain the diffusion…

High Energy Physics - Phenomenology · Physics 2016-09-06 W. de Boer , M. Herold , C. Sander , V. Zhukov

There are several ways to explain the dark matter relic density other than by the ordinary freeze-out scenario. For example, the freeze-in mechanism may constitute an alternative for generating the correct relic density for dark matter…

High Energy Physics - Phenomenology · Physics 2012-10-02 Andrew J. Williams , Celine Boehm , Stephen M. West , Daniel Albornoz Vasquez