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The differential event rate in Weakly Interacting Massive Particle (WIMP) direct detection experiments depends on the local dark matter density and velocity distribution. Accurate modelling of the local dark matter distribution is therefore…

Cosmology and Nongalactic Astrophysics · Physics 2017-08-02 Anne M Green

Direct detection experiments and the interpretation of their results are sensitive to the velocity structure of the dark matter in our galactic halo. In this work, we extend the formalism that deals with such astrophysics-driven…

High Energy Physics - Phenomenology · Physics 2024-04-09 Elias Bernreuther , Patrick J. Fox , Benjamin Lillard , Anna-Maria Taki , Tien-Tien Yu

An observation of the anisotropy of dark matter interactions in a direction-sensitive detector would provide decisive evidence for the discovery of galactic dark matter. Directional information would also provide a crucial input to…

High Energy Physics - Phenomenology · Physics 2015-11-20 Gopolang Mohlabeng , Kyoungchul Kong , Jin Li , Adam Para , Jonghee Yoo

Next-generation dark matter direct detection experiments will explore several orders of magnitude in the dark matter--nucleus scattering cross section below current upper limits. In case a signal is discovered the immediate task will be to…

High Energy Physics - Phenomenology · Physics 2019-10-14 Juan Herrero-Garcia , Yannick Müller , Thomas Schwetz

Velocity distribution of dark matter is assumed to be isotropic in most cases, however, anisotropy is suggested in some simulations. Directional direct detection of dark matter is a hopeful way to discriminate the anisotropy of dark matter…

Cosmology and Nongalactic Astrophysics · Physics 2020-07-10 Keiko I. Nagao

We use high-resolution, hydrodynamic, galaxy simulations from the Latte suite of FIRE-2 simulations to investigate the inherent variation of dark matter in sub-sampled regions around the Solar Circle of a Milky Way-type analogue galaxy and…

Astrophysics of Galaxies · Physics 2022-09-28 Grace E. Lawrence , Alan R. Duffy , Chris A. Blake , Philip F. Hopkins

We present a method to calculate, without making assumptions about the local dark matter velocity distribution, the maximal and minimal number of signal events in a direct detection experiment given a set of constraints from other direct…

High Energy Physics - Phenomenology · Physics 2017-09-06 Alejandro Ibarra , Andreas Rappelt

We propose an improved method to study recent and near-future dark matter direct detection experiments with small numbers of observed events. Our method determines in a quantitative and halo-independent way whether the experiments point…

High Energy Physics - Phenomenology · Physics 2015-03-24 Brian Feldstein , Felix Kahlhoefer

Dark matter could be captured in the Sun and self-annihilate, giving rise to an observable neutrino flux. Indirect searches for dark matter looking for this signal with neutrino telescopes have resulted in tight constraints on the…

High Energy Astrophysical Phenomena · Physics 2014-06-03 Koun Choi , Carsten Rott , Yoshitaka Itow

We discuss the propagation of dark matter perturbations with non-zero velocity dispersion in cosmological models. In particular a non-zero massive neutrino component may well have a significant effect on the matter power spectrum and cosmic…

Astrophysics · Physics 2009-11-07 Antony Lewis , Anthony Challinor

Although the velocity distribution of dark matter is assumed to be generally isotropic, some studies have found that $\sim\hspace{-0.1cm}25$\% of the distribution can have anisotropic components. As the directional detection of dark matter…

Cosmology and Nongalactic Astrophysics · Physics 2018-08-29 Keiko I. Nagao

Numerous ongoing experiments aim at detecting WIMP dark matter particles from the galactic halo directly through WIMP-nucleon interactions. Once such a detection is established a confirmation of the galactic origin of the signal is needed.…

Astrophysics · Physics 2009-06-23 Ole Host , Steen H Hansen

The velocity distribution of the dark matter particles on the outskirts of the Solar System remains unclear. We suggest to determine it using experimentally found properties of the oldest halo objects. Indeed, the oldest halo stars and…

High Energy Astrophysical Phenomena · Physics 2015-05-27 Anton N. Baushev

Recently there has been a huge activity in the dark matter direct detection field, with the report of an excess from CoGeNT and CRESST along with the annual modulated signal of DAMA/Libra and the strong exclusion bound from XENON100. We…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Chiara Arina

We demonstrate precisely what particle physics information can be extracted from a single direct detection observation of dark matter while making absolutely no assumptions about the local velocity distribution and local density of dark…

High Energy Physics - Phenomenology · Physics 2011-02-18 Patrick J. Fox , Graham D. Kribs , Tim M. P. Tait

Direct detection experiments are poised to detect dark matter in the form of weakly interacting massive particles (WIMPs). The signals expected in these experiments depend on the ultra-local WIMP density and velocity distribution. Firstly…

Cosmology and Nongalactic Astrophysics · Physics 2012-02-14 Anne M. Green

We show that current and imminent underground detectors are capable of precision astrometry of dark matter. First we show that galactic dark matter velocity distributions can be obtained from reconstructed tracks of dark matter scattering…

High Energy Physics - Phenomenology · Physics 2019-12-25 Joseph Bramante , Jason Kumar , Nirmal Raj

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

The interpretation of dark matter direct detection experiments is complicated by the fact that neither the astrophysical distribution of dark matter nor the properties of its particle physics interactions with nuclei are known in detail. To…

High Energy Physics - Phenomenology · Physics 2017-02-06 Felix Kahlhoefer , Sebastian Wild

Bayesian statistical methods offer a simple and consistent framework for incorporating uncertainties into a multi-parameter inference problem. In this work we apply these methods to a selection of current direct dark matter searches. We…

High Energy Physics - Phenomenology · Physics 2015-05-28 Chiara Arina , Jan Hamann , Yvonne Y. Y. Wong