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In the present paper we show how obtain the energy distribution f(E) in our vicinity starting from WIMP density profiles in a self consistent way by employing the Eddington approach and adding reasonable angular momentum dependent terms in…

Astrophysics of Galaxies · Physics 2014-02-04 J. D. Vergados

Dark matter density profiles based upon Lambda-CDM cosmology motivate an ansatz velocity distribution function with fewer high velocity particles than the Maxwell-Boltzmann distribution or proposed variants. The high velocity tail of the…

Cosmology and Nongalactic Astrophysics · Physics 2011-02-25 Mariangela Lisanti , Louis E. Strigari , Jay G. Wacker , Risa H. Wechsler

Astrophysical uncertainties in dark matter direct detection experiments are typically addressed by parametrizing the velocity distribution in terms of a few uncertain parameters that vary around some central values. Here we propose a method…

High Energy Physics - Phenomenology · Physics 2025-01-20 Gonzalo Herrera , Andreas Rappelt

We study the implications of a pseudo-phase-space density power-law for the anisotropy profile of a Milky Way-like dark matter halo. Requiring that the anisotropy parameter does not take non-physical values within the virial radius places a…

Cosmology and Nongalactic Astrophysics · Physics 2014-02-18 Daniel R. Hunter

We use FIRE-2 zoom simulations of Milky Way size disk galaxies to derive easy-to-use relationships between the observed circular speed of the Galaxy at the Solar location, $v_\mathrm{c}$, and dark matter properties of relevance for direct…

Astrophysics of Galaxies · Physics 2024-08-15 Patrick G. Staudt , James S. Bullock , Michael Boylan-Kolchin , David Kirkby , Andrew Wetzel , Xiaowei Ou

The rotation curve of the Milky Way is commonly used to estimate the local dark matter density $\rho_{{\rm DM},\odot}$. However, the estimates are subject to the choice of the distribution of baryons needed in this type of studies. In this…

Astrophysics of Galaxies · Physics 2019-10-16 P. F. de Salas , K. Malhan , K. Freese , K. Hattori , M. Valluri

Once weakly-interacting massive particles (WIMPs) are unambiguously detected in direct-detection experiments, the challenge will be to determine what one may infer from the data. Here, I examine the prospects for reconstructing the local…

Cosmology and Nongalactic Astrophysics · Physics 2013-05-29 Annika H. G. Peter

This report summarises progress made in estimating the local density of dark matter ($\rho_{\mathrm{DM,\odot}}$), a quantity that is especially important for dark matter direct detection experiments. We outline and compare the most common…

Astrophysics of Galaxies · Physics 2021-10-27 Pablo F. de Salas , Axel Widmark

In this paper, we extended our earlier work on the reconstruction of the (time-averaged) one-dimensional velocity distribution of Galactic Weakly Interacting Massive Particles (WIMPs) and introduce the Bayesian fitting procedure to the…

High Energy Astrophysical Phenomena · Physics 2014-08-05 Chung-Lin Shan

Dark matter (DM) direct detection experiments aim to place constraints on the DM--nucleon scattering cross-section and the DM particle mass. These constraints depend sensitively on the assumed local DM density and velocity distribution…

Cosmology and Nongalactic Astrophysics · Physics 2020-11-25 Robert Poole-McKenzie , Andreea S. Font , Billy Boxer , Ian G. McCarthy , Sergey Burdin , Sam G. Stafford , Shaun T. Brown

The impact of astrophysical uncertainties in direct detection searches can vary significantly across particle dark matter models and detector targets, due to the different velocity and momentum dependencies of the scattering cross section.…

High Energy Physics - Phenomenology · Physics 2026-01-12 Gonzalo Herrera

Fitting the model "A" to dark matter direct detection data, when the model that underlies the data is "B", introduces a theoretical bias in the fit. We perform a quantitative study of the theoretical bias in dark matter direct detection,…

High Energy Physics - Phenomenology · Physics 2015-07-20 Riccardo Catena

A precise determination of the local dark matter density and an accurate control over the corresponding uncertainties are of paramount importance for Dark Matter (DM) searches. Using very recent high-resolution numerical simulations of a…

High Energy Astrophysical Phenomena · Physics 2014-11-21 Miguel Pato , Oscar Agertz , Gianfranco Bertone , Ben Moore , Romain Teyssier

Directionally sensitive dark matter (DM) direct detection experiments present the only way to observe the full three-dimensional velocity distribution of the Milky Way halo local to Earth. In this work we compare methods for extracting…

Cosmology and Nongalactic Astrophysics · Physics 2017-01-10 Bradley J. Kavanagh , Ciaran A. J. O'Hare

We revisit systematics in determining the local dark matter density (rho_dm) from the vertical motion of stars in the Solar Neighbourhood. Using a simulation of a Milky Way-like galaxy, we determine the data-quality required to detect the…

Astrophysics of Galaxies · Physics 2011-08-29 Silvia Garbari , Justin I. Read , George Lake

We explore systematic biases in the identification of dark matter in future direct detection experiments and compare the reconstructed dark matter properties when assuming a self-consistent dark matter distribution function and the standard…

Cosmology and Nongalactic Astrophysics · Physics 2013-02-27 Miguel Pato , Louis E. Strigari , Roberto Trotta , Gianfranco Bertone

We outline the WIMP dark matter parameter space in the Constrained MSSM by performing a comprehensive statistical analysis that compares with experimental data predicted superpartner masses and other collider observables as well as a cold…

Astrophysics · Physics 2008-11-26 Roberto Trotta , Roberto Ruiz de Austri , Leszek Roszkowski

Reducing theoretical uncertainties in Galactic dark matter (DM) searches is an important challenge as several experiments are now delving into the parameter space relevant to popular (particle or not) candidates. Since many DM signal…

Astrophysics of Galaxies · Physics 2020-10-20 Thomas Lacroix , Arturo Núñez-Castiñeyra , Martin Stref , Julien Lavalle , Emmanuel Nezri

With positive signals from multiple direct detection experiments it will, in principle, be possible to measure the mass and cross sections of weakly-interacting massive particle (WIMP) dark matter. Recent work has shown that, with a…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 Bradley J. Kavanagh , Mattia Fornasa , Anne M. Green

Direct detection of Weakly Interacting Massive Particle (WIMP) candidates of Dark Matter (DM) is studied within the context of a self-consistent truncated isothermal model of the finite-size dark halo of the Galaxy based on the "King model"…

Cosmology and Nongalactic Astrophysics · Physics 2014-01-03 Soumini Chaudhury , Pijushpani Bhattacharjee , Ramanath Cowsik