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Related papers: WIMPs Without Weakness: Generalized Mass Window wi…

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WIMP (Weakly Interacting Massive Particle), FIMP (Feebly interacting Massive Particle) and EWIP (Extremely Weakly Interacting Particle) dark matter are different theoretical frameworks that have been postulated to explain the dark matter.…

High Energy Physics - Phenomenology · Physics 2013-05-17 Carlos E. Yaguna

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 generalize thermal WIMP (Weakly Interacting Massive Particle) freeze-out within Tsallis nonextensive statistics. Using Curado-Tsallis $q$-distributions $f_q(E;\mu,T)$ we compute $q$-deformed number and energy densities, pressure, entropy…

High Energy Physics - Phenomenology · Physics 2026-02-06 Matias P. Gonzalez , Roberto A. Lineros

We explore the production of thermal dark matter (DM) candidates (WIMPs, SIMPs, ELDERs and Cannibals) during cosmic reheating. Assuming a general parametrization for the scaling of the inflaton energy density and the standard model (SM)…

High Energy Physics - Phenomenology · Physics 2024-08-28 Nicolás Bernal , Kuldeep Deka , Marta Losada

We propose a new alternative to the Weakly Interacting Massive Particle (WIMP) paradigm for dark matter. Rather than being determined by thermal freeze-out, the dark matter abundance in this scenario is set by dark matter decay, which is…

High Energy Physics - Phenomenology · Physics 2017-08-16 Michael J. Baker , Joachim Kopp

We consider two non-standard cosmological scenaria according to which the universe is reheated to a low reheating temperature after the late decay of a scalar field or is dominated by the kinetic energy of a quintessence field in the…

High Energy Physics - Phenomenology · Physics 2010-02-24 C. Pallis

We revisit the singlet scalar dark matter model in the presence of a non-standard cosmological history prior to radiation domination. We focus on the regime in which the relic abundance is set by 4-to-2 self-annihilations while the dark and…

High Energy Physics - Phenomenology · Physics 2026-03-09 Geneviève Bélanger , Nicolás Bernal , Alexander Pukhov

We revisit the possibility of producing Weakly Interacting Massive Particle (WIMP) dark matter via a freeze-in mechanism triggered by a supercooled first-order phase transition (FOPT) in the early universe. Unlike traditional freeze-out and…

High Energy Physics - Phenomenology · Physics 2025-07-24 Seyed Yaser Ayazi , Mojtaba Hosseini

We propose that dark matter is composed of particles that naturally have the correct thermal relic density, but have neither weak-scale masses nor weak interactions. These WIMPless models emerge naturally from gauge-mediated supersymmetry…

High Energy Physics - Phenomenology · Physics 2009-01-10 Jonathan L. Feng , Jason Kumar

Weakly Interacting Massive Particles (WIMPs) continue to be considered some of the best-motivated Dark Matter (DM) candidates. No conclusive signal, despite an extensive search program that combines, often in a complementary way, direct,…

Dark matter may be hidden, with no standard model gauge interactions. At the same time, in WIMPless models with hidden matter masses proportional to hidden gauge couplings squared, the hidden dark matter's thermal relic density may…

High Energy Physics - Phenomenology · Physics 2009-11-18 Jonathan L. Feng , Huitzu Tu , Hai-Bo Yu

In this paper, we investigate the possibility of testing the weakly interacting massive particle (WIMP) dark matter (DM) models by applying the simplest phenomenological model which introduces an interaction term between dark energy (DE)…

Cosmology and Nongalactic Astrophysics · Physics 2021-09-15 Wei Cheng , Yuan He , Jin-Wang Diao , Yu Pan , Jun Zeng , Jia-Wei Zhang

The internal structure of the Standard Model implies a natural $\mathbb{Z}_4 \times \mathbb{Z}_3$ discrete gauge symmetry. Cancellation of the corresponding Dai--Freed anomalies requires the introduction of three right-handed neutrinos and…

High Energy Physics - Phenomenology · Physics 2026-05-25 Jie Sheng , Tsutomu T. Yanagida , Kairui Zhang

There are many extensions of the Standard Model with a dark matter (DM) candidate obtained via the freeze-out mechanism. It can happen that after all experimental and theoretical constraints are taken into account, all parameter points have…

High Energy Physics - Phenomenology · Physics 2024-07-09 Rodrigo Capucha , Karim Elyaouti , Margarete Mühlleitner , Johann Plotnikov , Rui Santos

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

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

The persistent null results at dark matter (DM) direct-detection experiments have pushed the popular weakly interacting massive particle (WIMP) DM to tight corners. Generic WIMP models with direct-detection rate below the current upper…

High Energy Physics - Phenomenology · Physics 2026-05-20 Debasish Borah , Arnab Dasgupta , Tong Arthur Wu

We have strong evidence on all cosmic scales, from galaxies to the largest structures ever observed, that there is more matter in the universe than we can see. Galaxies and clusters would fly apart unless they would be held together by…

Astrophysics · Physics 2008-11-26 Laura Baudis

Serious searches for the weakly interacting massive particle (WIMP) have now begun. In this context, the most important questions that need to be addressed are: "To what extent can we constrain the WIMP models in the future?" and "What will…

High Energy Physics - Phenomenology · Physics 2016-11-22 Shankha Banerjee , Shigeki Matsumoto , Kyohei Mukaida , Yue-Lin Sming Tsai

We investigate the production of neutralino dark matter in a cosmological scenario featuring an early matter dominated era ending at a relatively low reheating temperature. In such scenarios different production mechanisms of weakly…

High Energy Physics - Phenomenology · Physics 2018-12-18 Manuel Drees , Fazlollah Hajkarim