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One of the most puzzling problems of modern physics is the identification of the nature a non-relativistic matter component present in the universe, contributing to more than 25$\%$ of the total energy budget, known as Dark Matter. Weakly…

High Energy Physics - Phenomenology · Physics 2019-01-18 Mathias Pierre

Rates for detection of weakly-interacting massive-particle (WIMP) dark matter are usually carried out assuming the Milky Way halo is an isothermal sphere. However, it is possible that our halo is not precisely spherical; it may have some…

High Energy Physics - Phenomenology · Physics 2010-11-30 Marc Kamionkowski , Ali Kinkhabwala

Galactic weakly interacting massive particles (WIMPs) may scatter off solar nuclei to orbits gravitationally bound to the Sun. Once bound, the WIMPs continue to lose energy by repeated scatters in the Sun, eventually leading to complete…

High Energy Astrophysical Phenomena · Physics 2010-04-29 Sofia Sivertsson , Joakim Edsjo

The status and prospects of the experimental efforts in the detection of Particle Dark Matter is reviewed. Emphasis is put in the direct searches for WIMPs (Weakly Interacting Massive Particles), outlining the various strategies and…

Astrophysics · Physics 2007-05-23 Angel Morales

We review several current aspects of dark matter theory and experiment. We overview the present experimental status, which includes current bounds and recent claims and hints of a possible signal in a wide range of experiments: direct…

High Energy Physics - Phenomenology · Physics 2018-06-13 Leszek Roszkowski , Enrico Maria Sessolo , Sebastian Trojanowski

We discuss the possibility to observe the products of dark matter annihilation that was going on in the early Universe. Of all the particles that could be generated by this process we consider only photons, as they are both uncharged and…

Astrophysics · Physics 2009-10-08 Anton N. Baushev

A generic feature of weakly interacting massive particle (WIMP) dark matter models is the emission of photons over a broad energy band resulting from the stable yields of dark matter pair annihilation. Inverse Compton scattering off cosmic…

Astrophysics · Physics 2009-11-13 Tesla E. Jeltema , Stefano Profumo

Weakly Interacting Massive Particles (WIMPs) are one of the leading candidates for Dark Matter. Currently, the most promising method to detect WIMPs is the direct detection of the recoil energy deposited in a low-background laboratory…

Astrophysics · Physics 2011-11-10 Chung-Lin Shan

We use numerical simulations to examine the substructure within galactic and cluster mass halos that form within a hierarchical universe. Clusters are easily reproduced with a steep mass spectrum of thousands of substructure clumps that…

We consider a self-interacting dark matter model in which the massive dark photon mediating the self-interaction decays to light dark fermions to avoid over-closing the universe. We find that if the model is constrained to explain the dark…

High Energy Physics - Phenomenology · Physics 2019-07-05 Ran Huo , Manoj Kaplinghat , Zhen Pan , Hai-Bo Yu

This write--up gives a rather elementary introduction into particle physics aspects of the cosmological Dark Matter puzzle. A fairly comprehensive list of possible candidates is given; in each case the production mechanism and possible ways…

High Energy Physics - Phenomenology · Physics 2009-10-31 Manuel Drees

Dark matter direct and indirect detection signals depend crucially on the dark matter distribution. While the formation of large scale structure is independent of the nature of the cold dark matter (CDM), the fate of inhomogeneities on…

Astrophysics · Physics 2011-05-05 Anne M. Green , Stefan Hofmann , Dominik J. Schwarz

We evaluate the prospects for finding evidence of dark matter production at the Large Hadron Collider. We consider WIMPs and superWIMPs, weakly- and superweakly-interacting massive particles, and characterize their properties through…

High Energy Physics - Phenomenology · Physics 2009-11-11 Jonathan L. Feng , Shufang Su , Fumihiro Takayama

The nature of the dark matter in the halo of our Galaxy is still largely unknown. The microlensing events found so far towards the Large Magellanic Cloud suggest that at most about 20% of the halo dark matter is in the form of MACHOs…

High Energy Physics - Phenomenology · Physics 2017-08-23 Philippe Jetzer

The WMAP experiment has revealed an excess of microwave emission from the region around the center of our Galaxy. It has been suggested that this signal, known as the ``WMAP Haze'', could be synchrotron emission from relativistic electrons…

Astrophysics · Physics 2008-11-26 Dan Hooper , Douglas P. Finkbeiner , Gregory Dobler

Many experiments exploring weakly interacting massive particles (WIMPs) such as direct, indirect and collider searches have been carried out until now. However, a clear signal of a WIMP has not been found yet and it makes us to suspect that…

High Energy Physics - Phenomenology · Physics 2016-03-07 Hiroshi Okada , Yuta Orikasa , Takashi Toma

We propose a novel probe of weakly interacting massive particle (WIMP) dark matter (DM) candidates of a wide mass range which fall short of the required annihilation rates to satisfy correct thermal relic abundance, dubbed as…

High Energy Physics - Phenomenology · Physics 2022-07-29 Debasish Borah , Suruj Jyoti Das , Abhijit Kumar Saha , Rome Samanta

We present a detailed analysis of the radio synchrotron emission induced by WIMP dark matter annihilations and decays in extragalactic halos. We compute intensity, angular correlation, and source counts and discuss the impact on the…

Cosmology and Nongalactic Astrophysics · Physics 2012-03-27 N. Fornengo , R. Lineros , M. Regis , M. Taoso

There is almost universal agreement among cosmologists that most of the matter in the Universe is dark, and there are very good reasons to believe that most of this dark matter must be nonbaryonic. The two leading candidates for this dark…

High Energy Physics - Phenomenology · Physics 2007-05-23 Marc Kamionkowski