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Light WIMPs are dark matter particle candidates with weak scale interaction with the known particles, and mass in the GeV to 10's of GeV range. Hints of light WIMPs have appeared in several dark matter searches in the last decade. The…

High Energy Physics - Phenomenology · Physics 2017-12-13 Graciela B. Gelmini

A weakly-interacting massive particle (WIMP) is perhaps the most promising candidate for the dark matter in the Galactic halo. The WIMP detection rate in laboratory searches is fixed by the cross section for elastic WIMP-nucleus scattering.…

Astrophysics · Physics 2016-08-16 Gary Prézeau , Andriy Kurylov , Marc Kamionkowski , Petr Vogel

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

Weakly interacting massive particles (WIMPs) remain the strongest candidates for the dark matter in the Universe. If WIMPs are the dark matter, they will form galactic halos according to the hierarchical clustering observed in N-body…

Astrophysics · Physics 2007-05-23 Angela V. Olinto , Pasquale Blasi , Craig Tyler

The hierarchy problem and the identity of dark matter are two of the central driving forces in particle physics. Twin Higgs models provide an elegant solution to the little hierarchy problem, while Strongly Interacting Massive Particles…

High Energy Physics - Phenomenology · Physics 2019-01-09 Yonit Hochberg , Eric Kuflik , Hitoshi Murayama

With growing agony of not finding a dark matter (DM) particle in direct search experiments so far (for example in XENON1T), frameworks where the freeze-out of DM is driven by number changing processes within the dark sector itself and do…

High Energy Physics - Phenomenology · Physics 2020-02-05 Subhaditya Bhattacharya , Purusottam Ghosh , Shivam Verma

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

I will begin by reviewing the evidence for Dark Matter in the Universe, as well as the candidates for dark matter. At most 20% of the dark matter in galaxies can be in the form of MACHOs (Massive Compact Halo Objects); the remainder appears…

Astrophysics · Physics 2008-11-26 Katherine Freese

Dark matter with strong self-interactions provides a compelling solution to several small-scale structure puzzles. Under the assumption that the coupling between dark matter and the Standard Model particles is suppressed, such strongly…

High Energy Physics - Phenomenology · Physics 2016-01-13 Nicolas Bernal , Xiaoyong Chu

Dark matter is a vital component of the current best model of our universe, $\Lambda$CDM. There are leading candidates for what the dark matter could be (e.g. weakly-interacting massive particles, or axions), but no compelling observational…

Cosmology and Nongalactic Astrophysics · Physics 2015-07-06 David M. Jacobs , Glenn D. Starkman , Bryan W. Lynn

Whilst the need for dark matter was established almost a century ago, only its gravitational interaction has been confirmed so far, allowing for plethora of models for dark matter. The Weakly Interacting Massive Particles (WIMPs) category…

High Energy Physics - Phenomenology · Physics 2021-01-26 Chiara Arina

The WIMP (weakly interacting massive particle) paradigm for dark matter is currently being probed via many different experiments. Direct detection, indirect detection and collider searches are all hoping to catch a glimpse of these elusive…

High Energy Physics - Phenomenology · Physics 2013-04-24 Herbert Dreiner , Moritz Huck , Michael Krämer , Daniel Schmeier , Jamie Tattersall

SuperWeakly-Interacting Massive Particles (superWIMPs) produced in the late decays of other particles are well-motivated dark matter candidates and may be favored over standard Weakly-Interacting Massive Particles (WIMPs) by small scale…

High Energy Physics - Phenomenology · Physics 2008-11-26 Jose A. R. Cembranos , Jonathan L. Feng , Arvind Rajaraman , Bryan T. Smith , Fumihiro Takayama

Collisionless, cold dark matter in the form of weakly-interacting massive particles (WIMPs) is well-motivated in particle physics, naturally yields the observed relic density, and successfully explains structure formation on large scales.…

High Energy Physics - Phenomenology · Physics 2008-11-26 Jose A. R. Cembranos , Jonathan L. Feng , Arvind Rajaraman , Fumihiro Takayama

Cosmological structure formation predicts that our galactic halo contains an enormous hierarchy of substructures and streams, the remnants of the merging hierarchy that began with tiny Earth mass microhalos. If these structures persist…

Astrophysics of Galaxies · Physics 2015-03-19 Aurel Schneider , Lawrence M. Krauss , Ben Moore

We briefly review scenarios with feebly interacting particles (FIMPs) as dark matter candidates. The discussion covers issues with dark matter production in the early universe as well as signatures of FIMPs at the high energy and high…

High Energy Physics - Phenomenology · Physics 2024-12-02 G. Bélanger , S. Chakraborti , A. Pukhov

It is shown that weakly interacting massive particles (WIMPs), which are possible cold dark matter candidates, can be studied by exclusive measurements of X-rays following WIMPs nuclear interactions. Inner-shell atomic electrons are ionized…

High Energy Physics - Phenomenology · Physics 2009-11-11 H. Ejiri , Ch. C. Moustakidis , J. D. Vergados

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

We investigate a scenario where Strongly Interacting Massive Particle (SIMP) dark matter interacts with an axion-like particle (ALP) that couples exclusively to electrons. This minimal setup provides interactions which enforce thermal…

High Energy Physics - Phenomenology · Physics 2026-04-13 Vincenzo Fiorentino , Ji-Heng Guo , Giacomo Landini , Federico Mescia

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