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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

The Universe's early thermal history is poorly constrained, and it is possible that it underwent a period of early matter domination driven by a heavy particle or an oscillating scalar field that decayed into radiation before the onset of…

Cosmology and Nongalactic Astrophysics · Physics 2020-01-06 M. Sten Delos , Tim Linden , Adrienne L. Erickcek

There is increasing evidence that conventional cold dark matter (CDM) models lead to conflicts between observations and numerical simulations of dark matter halos on sub-galactic scales. Spergel and Steinhardt showed that if the CDM is…

Astrophysics · Physics 2009-10-31 W. B. Lin , D. H. Huang , X. Zhang , R. Brandenberger

It is a well-known fact that the gravitational effect of dark matter in galaxies is only noticeable when the orbital accelerations drop below $a_0 \simeq 2\times 10^{-8}$ cm s$^{-1}$ (Milgrom's Law). This peculiarity of the dynamic…

Cosmology and Nongalactic Astrophysics · Physics 2011-11-08 L. Acedo

The EDELWEISS Dark Matter Search uses low-temperature Ge detectors with heat and ionisation read-out to identify nuclear recoils induced by elastic collisions with WIMPs from the galactic halo. Preliminary results obtained with 320g…

Weakly Interacting Massive Particles (WIMPs) are among the best-motivated dark matter candidates. In the standard scenario where the freeze-out occurs well after the end of inflationary reheating, they are in tension with the severe…

High Energy Physics - Phenomenology · Physics 2022-12-21 Nicolás Bernal , Yong Xu

We consider temperature-induced melting of a Wigner solid in one dimensional (1D) and two dimensional (2D) lattices of electrons interacting via the long-range Coulomb interaction in the presence of strong disorder arising from charged…

Disordered Systems and Neural Networks · Physics 2022-09-13 DinhDuy Vu , Sankar Das Sarma

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 study the gravothermal evolution of dark matter halos in the presence of dissipative dark matter self-interactions. Dissipative interactions are present in many particle-physics realizations of the dark-sector paradigm and can…

High Energy Physics - Phenomenology · Physics 2019-09-25 Rouven Essig , Samuel D. McDermott , Hai-Bo Yu , Yi-Ming Zhong

Warm dark matter (WDM) means DM particles with mass m in the keV scale. For large scales, (structures beyond ~ 100 kpc) WDM and CDM yield identical results which agree with observations. For intermediate scales, WDM gives the correct…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-12 H. J. de Vega , N. G. Sanchez

We discuss a supersymmetric model for cogenesis of dark and baryonic matter where the dark matter (DM) has mass in the 8-10 GeV range as indicated by several direct detection searches including most recently the CDMS experiment with the…

High Energy Physics - Phenomenology · Physics 2015-06-15 Rouzbeh Allahverdi , Bhaskar Dutta , Rabindra N. Mohapatra , Kuver Sinha

We discuss the production of dark matter with mass of order $10$-$100$ TeV and $\mathcal{O}(1)$ couplings to the standard model, a scenario we refer to as the `mesotuned WIMP'. Given the lack of new physics observed at the LHC, indicating…

High Energy Physics - Phenomenology · Physics 2023-06-01 Michael Nee

In the standard thermal relic scenario, dark matter remains in chemical equilibrium with the Standard Model radiation bath until freeze-out occurs at $T \sim m_X/20$, where $m_X$ is the dark matter mass. In this familiar class of models,…

High Energy Physics - Phenomenology · Physics 2026-05-20 Dan Hooper , Gordan Krnjaic , Gabriele Montefalcone

We present a model independent analysis of dark matter (DM) both decoupling ultra relativistic (UR) and non-relativistic (NR) based in the phase-space density D = rho_{DM}/sigma^3_{DM}. We derive explicit formulas for the DM particle mass m…

Cosmology and Nongalactic Astrophysics · Physics 2011-04-07 H. J. de Vega , N. G. Sanchez

The system of stability equations for galactic halos is under-determined in most of the models of dark matter (DM). Conventionally, the issue is resolved by taking the temperature as a constant, and the chemical potential and the mass…

Cosmology and Nongalactic Astrophysics · Physics 2021-08-13 Ahmad Borzou

The nature of dark matter (DM) remains one of the most important unanswered questions in particle physics. Here, we propose a novel scenario for DM in which weakly interacting massive particles (WIMPs) can freeze-in due to a first-order…

High Energy Physics - Phenomenology · Physics 2023-09-15 Xiao-Rui Wang , Ke-Pan Xie

Weakly interacting massive particles (WIMPs) are one of very few probes of cosmology before Big Bang nucleosynthesis (BBN). We point out that in scenarios in which the Universe evolves in a non-standard manner during and after WIMP kinetic…

Astrophysics · Physics 2009-06-23 Graciela B. Gelmini , Paolo Gondolo

The Kondo and Periodic Anderson Model (PAM) are known to provide a microscopic picture of many of the fundamental properties of heavy fermion materials and, more generally, a variety of strong correlation phenomena in $4f$ and $5f$ systems.…

Strongly Correlated Electrons · Physics 2019-05-10 N. C. Costa , T. Mendes-Santos , T. Paiva , N. J. Curro , R. R. dos Santos , R. T. Scalettar

Direct detection experiments utilizing electronic excitations are spearheading the search for light, sub-GeV, dark matter (DM). It is thus crucial to have accurate predictions for any DM-electron interaction rate in this regime. EXCEED-DM…

High Energy Physics - Phenomenology · Physics 2023-03-16 Tanner Trickle

We present the full evolution of the velocity of a massive particle, along with the equation of state we can compute the energy density and pressure evolution for the background evolution. It is also natural to compute the perturbation…

Cosmology and Nongalactic Astrophysics · Physics 2020-09-17 Jorge Mastache , Axel de la Macorra