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Solving the Dark Matter enigma represents one of the key objectives of contemporary physics. Recent astrophysical and cosmological measurements have unambiguously demonstrated that ordinary matter contributes to less than 5 % of the energy…

Astrophysics · Physics 2015-06-24 Gabriel Chardin

Multiply-interacting massive particles (MIMPs) are heavy (>10^10 GeV/c^2) dark matter particles that interact strongly with regular matter, but may have evaded detection due to the low number density required to make up the local dark…

High Energy Physics - Phenomenology · Physics 2022-01-12 Michael Clark , Amanda Depoian , Bahaa Elshimy , Abigail Kopec , Rafael F. Lang , Shengchao Li , Juehang Qin

This brief summary targets feebly interacting massive particles, FIMPs, which are interesting candidates for dark matter. The cosmic history of FIMP dark matter often leads to predictions of long-lived mediator particles at laboratory…

High Energy Physics - Phenomenology · Physics 2023-12-22 Susanne Westhoff

The status of the recent efforts in the direct search for Weak Interacting Massive Particle (WIMP) Dark Matter is briefly reviewed and the main achievements illustrated by the contributions presented to TAUP 99. The strategies followed in…

Astrophysics · Physics 2009-10-31 Angel Morales

We point out a new and largely model-independent constraint on the dark matter scattering cross section with nucleons, applying when this quantity is larger than for typical weakly interacting dark matter candidates. When the dark matter…

Astrophysics · Physics 2008-11-26 Gregory D. Mack , John F. Beacom , Gianfranco Bertone

Spergel and Steinhardt have recently proposed the concept of dark matter with strong self-interactions as a means to address numerous discrepancies between observations of dark matter halos on subgalactic scales and the predictions of the…

Strongly interacting massive particles $\pi$ have been advocated as prominent dark matter candidates when they regulate their relic abundance through odd-numbered $3 \pi \to2\pi$ annihilation. We show that successful freeze-out may also be…

High Energy Physics - Phenomenology · Physics 2024-07-16 Xiaoyong Chu , Marco Nikolic , Josef Pradler

There is almost universal agreement among astronomers that most of the mass in the Universe and most of the mass in the Galactic halo is dark. Many lines of reasoning suggest that the dark matter consists of some new, as yet undiscovered,…

High Energy Physics - Phenomenology · Physics 2009-10-28 G. Jungman , M. Kamionkowski , K. Griest

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

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

Although dark matter (DM) comprises 84\% of the matter content of the Universe, its nature remains unknown. One broad class of particle DM motivated by extensions of the Standard Model (SM) is weakly interacting massive particles (WIMPs).…

High Energy Astrophysical Phenomena · Physics 2025-07-14 Jeffrey Lazar

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

We investigate the prospects of detecting weakly interacting massive particle (WIMP) dark matter by measuring the contribution to the extragalactic gamma-ray radiation induced, in any dark matter halo and at all redshifts, by WIMP pair…

Astrophysics · Physics 2009-11-07 Piero Ullio , Lars Bergstrom , Joakim Edsjo , Cedric Lacey

Strongly interacting massive particle (SIMP) has become one of the promising dark matter (DM) candidates due to its capability of addressing the small-scale anomaly, where the final DM abundance is set via the freeze-out of $3\rightarrow 2$…

High Energy Physics - Phenomenology · Physics 2024-10-08 Debtosh Chowdhury , Sudipta Show

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

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

Certain strongly interacting dark matter candidates could have evaded detection, and much work has been done on constraining their parameter space. Recently, it was shown theoretically that the scattering cross section for $m_\chi \gtrsim…

High Energy Physics - Experiment · Physics 2021-03-11 Christopher V. Cappiello , J. I. Collar , John F. Beacom

We present an overview of scenarios where the observed Dark Matter (DM) abundance consists of Feebly Interacting Massive Particles (FIMPs), produced non-thermally by the so-called freeze-in mechanism. In contrast to the usual freeze-out…

High Energy Physics - Phenomenology · Physics 2017-11-22 Nicolás Bernal , Matti Heikinheimo , Tommi Tenkanen , Kimmo Tuominen , Ville Vaskonen

We study production of self-interacting dark matter (DM) during an early matter-dominated phase. As a benchmark scenario, we consider a model where the DM consists of singlet scalar particles coupled to the visible Standard Model (SM)…

High Energy Physics - Phenomenology · Physics 2019-02-20 Nicolás Bernal , Catarina Cosme , Tommi Tenkanen

The weakly interacting massive particle (WIMP) often serves as a candidate for the cold dark matter, however when produced non-thermally it could behave like warm dark matter. In this paper we study the properties of the $\gamma$-ray…

High Energy Astrophysical Phenomena · Physics 2012-12-12 Qiang Yuan , Yixian Cao , Jie Liu , Peng-Fei Yin , Liang Gao , Xiao-Jun Bi , Xinmin Zhang
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