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Dark matter may consist of feebly interacting massive particles (FIMPs) that never thermalized with the cosmic plasma. Their relic density is achieved via freeze-in for a wide range of masses, significantly expanding the model space that…

High Energy Physics - Phenomenology · Physics 2023-04-11 Jérôme Claude , Maíra Dutra , Stephen Godfrey

While the paradigm of a weakly interacting massive particle (WIMP) has guided our search strategies for dark matter in the past decades, their null-results have stimulated growing interest in alternative explanations pointing towards…

High Energy Physics - Phenomenology · Physics 2018-05-22 Jan Heisig

Dark matter constitutes one of the most intriguing but so far unresolved issues in physics today. In many extensions of the Standard Model the existence of a stable Weakly Interacting Massive Particle (WIMP) is predicted. The WIMP is an…

Astrophysics · Physics 2019-08-13 Tomi Ylinen , Yvonne Edmonds , Elliott D. Bloom , Jan Conrad

Several ideas for new physics beyond the standard model may provide particle candidates for the dark matter in the Galactic halo. The two leading candidates are an axion and a weakly-interacting massive particle (WIMP), such as the…

High Energy Physics - Phenomenology · Physics 2008-02-03 Marc Kamionkowski

We derive limits on the interactions of dark matter with quarks from ATLAS null searches for jets + missing energy based on ~1 fb^-1 of integrated luminosity, using a model-insensitive effective theory framework. We find that the new limits…

High Energy Physics - Phenomenology · Physics 2013-05-29 Arvind Rajaraman , William Shepherd , Tim M. P. Tait , Alexander M. Wijangco

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

Weakly interacting massive particles (WIMPs) are among the favored candidates for cold dark matter in the universe. The phenomenology of supersymmetric WIMPs has been quite developed during recent years. However, there are other…

High Energy Physics - Phenomenology · Physics 2009-11-07 E. A. Baltz , L. Bergstrom

Although it is usually thought that a class of weakly interacting massive particle (WIMP) dark matters (DMs), which have the vector coupling with the $Z$ boson, is denied by null results of the direct DM searches, such WIMP DMs are still…

High Energy Physics - Phenomenology · Physics 2021-08-10 Nobuchika Okada , Osamu Seto

We present a class of dark matter models, in which the dark matter particle is a feebly interacting massive particle (FIMP) produced via the decay of an electrically charged and/or colored parent particle. Given the feeble interaction, dark…

High Energy Physics - Phenomenology · Physics 2019-10-02 G. Bélanger , N. Desai , A. Goudelis , J. Harz , A. Lessa , J. M. No , A. Pukhov , S. Sekmen , D. Sengupta , B. Zaldivar , J. Zurita

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

Current cosmological models and data suggest the existence of a cold Dark Matter (DM) component, however the nature of DM particles remains unknown. A favored candidate for DM is a Weakly Interacting Massive Particle (WIMP) in the mass…

High Energy Astrophysical Phenomena · Physics 2019-08-13 Benjamin Zitzer

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

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

A light fermionic weakly interacting massive particle (WIMP) dark matter is investigated by studying its minimal renormalizable model, where it requires a scalar mediator to have an interaction between the WIMP and standard model particles.…

High Energy Physics - Phenomenology · Physics 2019-09-04 Shigeki Matsumoto , Yue-Lin Sming Tsai , Po-Yan Tseng

Over the past few decades, an anomalous 511 keV gamma-ray line has been observed from the centre of the Milky Way. Dark matter (DM) in the form of light weakly interacting massive particles (WIMPs) annihilating into electron-positron pairs…

Cosmology and Nongalactic Astrophysics · Physics 2016-12-01 Ryan J. Wilkinson , Aaron C. Vincent , Celine Boehm , Christopher McCabe

We investigate scenarios in which dark matter interacts with the Standard Model primarily through electroweak gauge bosons. We employ an effective field theory framework wherein the Standard Model and the dark matter particle are the only…

High Energy Physics - Phenomenology · Physics 2013-12-16 R. C. Cotta , J. L. Hewett , M. P. Le , T. G. Rizzo

Weakly interacting massive particles (WIMPs) constitute a paradigm in the search for particle dark matter. In contrast to supersymmetry (SUSY), we explore the possibility that WIMP dark-matter acts as mediator of neutrino mass generation.…

High Energy Physics - Phenomenology · Physics 2025-09-03 Victor Martin Lozano , G. Sanchez Garcia , J. W. F. Valle

In this thesis, we investigate various possibilities of Weakly Interacting Massive Particle (WIMP) dark matter (DM) and their implications. These possibilities are important because they challenge the viability of WIMP DM in light of tight…

High Energy Physics - Phenomenology · Physics 2024-03-04 Shivam Gola

The current state searches for dark matter in the form of Weakly Interacting Massive Particles (WIMPs) using both direct and indirect techniques is reviewed. Advances in recent years by various direct search experiments, utilising…

Astrophysics · Physics 2007-05-23 N. J. C. Spooner , V. A. Kudryavtsev

If dark matter is a new species of particle produced in the early universe as a cold thermal relic (a weakly-interacting massive particle-WIMP), its present abundance, its scattering with matter in direct-detection experiments, its…

High Energy Physics - Phenomenology · Physics 2013-05-02 Jing-Yuan Chen , Edward W. Kolb , Lian-Tao Wang
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