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Related papers: Non-parametric uncertainties in the dark matter ve…

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We study different models of dark matter distribution for the halo of our galaxy. In particular, we consider Eddington and King-Michie models, which [C[C, which include anisotropy in the velocity space, and compute in a self-consistent way…

Astrophysics · Physics 2009-10-28 F. De Paolis , G. Ingrosso , Ph. Jetzer

Dark matter experiments primarily search for the scattering of WIMPs on target nuclei of well shielded underground detectors. The results from liquid scintillator experiments furthermore provide precise probes of very light and very weakly…

High Energy Physics - Phenomenology · Physics 2015-10-19 Haipeng An , Kaixuan Ni , Maxim Pospelov , Josef Pradler , Adam Ritz

We test the consistency of dark matter velocity distributions obtained from dark matter-only numerical simulations with analytic predictions, using the publicly available Via Lactea 2 dataset as an example. We find that, well inside the…

Cosmology and Nongalactic Astrophysics · Physics 2024-03-08 Katharena Christy , Jason Kumar , Louis E. Strigari

In this paper, we study the recent excess of low energy events observed by the CoGeNT collaboration, and discuss the possibility that these events originate from the elastic scattering of a light (m_DM ~ 5-10 GeV) dark matter particle. We…

High Energy Physics - Phenomenology · Physics 2014-11-20 A. Liam Fitzpatrick , Dan Hooper , Kathryn M. Zurek

Velocity distribution of dark matter is supposed to be isotropic Maxwell-Boltzmann distribution in most cases, however, other distribution models including anisotropic one are suggested by simulations. Directional direct detection of dark…

Cosmology and Nongalactic Astrophysics · Physics 2019-09-20 Keiko I. Nagao

Collider, space, and Earth based experiments are now able to probe several extensions of the Standard Model of particle physics which provide viable dark matter candidates. Direct and indirect dark matter searches rely on inputs of…

High Energy Physics - Phenomenology · Physics 2018-05-04 Maria Benito , Nicolas Bernal , Nassim Bozorgnia , Francesca Calore , Fabio Iocco

In a recent Letter, Cowsik, Ratnam and Bhattacharjee (1996a) have built a dynamically self-consistent spatial distribution of particles of galactic dark matter. They have come up with the rather unorthodox conclusion that the mean velocity…

Astrophysics · Physics 2011-05-23 O. Bienaymé , C. Pichon

A convincing identification of dark matter (DM) particles can probably be achieved only through a combined analysis of different detections strategies, which provides an effective way of removing degeneracies in the parameter space of DM…

High Energy Astrophysical Phenomena · Physics 2014-11-21 Pasquale D. Serpico , Gianfranco Bertone

We present a simple model that accurately describes various statistical properties of peculiar velocities of dark matter halos. We pay particular attention to the following two effects; first, the evolution of the halo peculiar velocity…

Astrophysics · Physics 2009-11-07 Takashi Hamana , Issha Kayo , Naoki Yoshida , Yasushi Suto , Y. P. Jing

We present halo-independent methods to analyze the results of dark matter direct detection experiments assuming inelastic scattering. We focus on the annual modulation signal reported by DAMA/LIBRA and present three different…

High Energy Physics - Phenomenology · Physics 2015-06-15 Nassim Bozorgnia , Juan Herrero-Garcia , Thomas Schwetz , Jure Zupan

The velocity distributions of stellar tracers in general exhibit weak non-Gaussianity encoding information on the orbital composition of a galaxy and the underlying potential. The standard solution for measuring non-Gaussianity involves…

Astrophysics of Galaxies · Physics 2020-10-28 Jason L. Sanders , N. Wyn Evans

Inelastic dark matter (IDM) models feature an energy threshold for scattering with Standard Model particles, which enables their consistency with the increasingly stringent limits placed by direct detection experiments. In a typical…

High Energy Physics - Phenomenology · Physics 2025-10-15 Zamiul Alam , Christopher V. Cappiello , Francesc Ferrer

N-body simulations of dark matter halos show that the density is cusped near the center of the halo. The density profile behaves as $r^{-\gamma}$ in the inner parts, where $\gamma \simeq 1$ for the NFW model and $\gamma \simeq 1.5$ for the…

Astrophysics · Physics 2009-06-23 Ding Ma , Ping He

Non-baryonic, or "dark," matter is believed to be a major component of the total mass budget of the universe. We review the candidates for particle dark matter and discuss the prospects for direct detection (via interaction of dark matter…

Astrophysics · Physics 2008-11-26 Gianfranco Bertone , David Merritt

We develop a formalism to describe extensions of existing axion haloscope designs to those that possess directional sensitivity to incoming dark matter axion velocities. The effects are measurable if experiments are designed to have…

Cosmology and Nongalactic Astrophysics · Physics 2018-12-04 Stefan Knirck , Alexander J. Millar , Ciaran A. J. O'Hare , Javier Redondo , Frank D. Steffen

The density profile of simulated dark matter structures is fairly well-established, and several explanations for its characteristics have been put forward. In contrast, the radial variation of the velocity anisotropy has still not been…

Astrophysics · Physics 2014-11-18 Steen H. Hansen

Directional detection of dark matter is the next generation experiment, which is expected to have better back ground rejection efficiency than conventional direct search. Another intriguing possibility of the experiment by means of the…

High Energy Physics - Phenomenology · Physics 2014-12-16 Keiko I. Nagao

The scattering of light dark matter off thermal electrons inside the Sun produces a "fast" sub-component of the dark matter flux that may be detectable in underground experiments. We update and extend previous work by analyzing the…

High Energy Physics - Phenomenology · Physics 2023-09-27 Haipeng An , Haoming Nie , Maxim Pospelov , Josef Pradler , Adam Ritz

Rates for detection of weakly-interacting massive-particle (WIMP) dark matter are usually carried out assuming the Milky Way halo is an isothermal sphere. However, it is possible that our halo is not precisely spherical; it may have some…

High Energy Physics - Phenomenology · Physics 2010-11-30 Marc Kamionkowski , Ali Kinkhabwala

We derive the pairwise peculiar velocity distribution function of dark matter particles applying the dark matter halo approach. Unlike the previous work, we do not assume a Gaussian velocity distribution function of dark matter in a single…

Astrophysics · Physics 2015-06-24 Takeshi Kuwabara , Atsushi Taruya , Yasushi Suto
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