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We show that dark matter direct detection experiments are sensitive to the existence of particles with a small effective charge (for instance, via couplings to a kinetically mixed, low-mass dark photon). Our forecasts do not depend on these…

High Energy Physics - Phenomenology · Physics 2024-08-01 Ella Iles , Saniya Heeba , Katelin Schutz

In this paper, we investigate the modification of our expressions developed for the model-independent data analysis procedure of the reconstruction of the (time-averaged) one-dimensional velocity distribution of Galactic Weakly Interacting…

High Energy Astrophysical Phenomena · Physics 2015-08-10 Chung-Lin Shan

Several aspects of the motivation for particle dark matter search are introduced. The experimental principles and present state of the most important experiments are presented. Direct searches for WIMPs are explained in some detail,…

Astrophysics · Physics 2007-05-23 Martin Loidl

We discuss to which extent the present experiments of direct search for WIMPs, when interpreted in terms of relic neutralinos, probe interesting regions of the supersymmetric parameter space, which are also being progressively explored at…

High Energy Physics - Phenomenology · Physics 2008-11-26 A. Bottino , F. Donato , N. Fornengo , S. Scopel

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

We discuss irreducible statistical limitations of future ton-scale dark matter direct detection experiments. We focus in particular on the coverage of confidence intervals, which quantifies the reliability of the statistical method used to…

High Energy Physics - Phenomenology · Physics 2012-11-29 Charlotte Strege , Roberto Trotta , Gianfranco Bertone , Annika H. G. Peter , Pat Scott

Direct detection of dark matter with directional sensitivity offers not only measurement of both recoil energy and direction of dark matter, but also a way to understand dark matter distribution in the Galaxy. Maxwell distribution is…

High Energy Physics - Phenomenology · Physics 2015-06-18 Keiko I. Nagao

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

Weakly Interacting Massive Particle (WIMP) direct detection event rate calculations usually rely on fairly simple, essentially static, analytic halo models. This is largely since the resolution of numerical simulations is not yet large…

Astrophysics · Physics 2009-12-31 Anne M Green

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

Detecting dark matter as it streams through detectors on Earth relies on knowledge of its phase space density on a scale comparable to the size of our solar system. Numerical simulations predict that our Galactic halo contains an enormous…

Astrophysics of Galaxies · Physics 2014-11-20 Aurel Schneider , Lawrence M. Krauss , Ben Moore

Dark matter comprises the bulk of the matter in the universe but its particle nature and cosmological origin remain mysterious. Knowledge of the dark matter density distribution in the Milky Way Galaxy is crucial to both our understanding…

A weakly interacting massive particle (WIMP) is a leading candidate of the dark matter. The WIMP dark matter abundance is determined by the freeze-out mechanism. Once we know the property of the WIMP particle such as the mass and…

High Energy Physics - Phenomenology · Physics 2020-08-19 Ken'ichi Saikawa , Satoshi Shirai

We investigate a new class of dark matter: superweakly-interacting massive particles (superWIMPs). As with conventional WIMPs, superWIMPs appear in well-motivated particle theories with naturally the correct relic density. In contrast to…

High Energy Physics - Phenomenology · Physics 2010-11-11 Jonathan L. Feng , Arvind Rajaraman , Fumihiro Takayama

In this paper, we revisit our model-independent methods developed for reconstructing properties of Weakly Interacting Massive Particles (WIMPs) by using measured recoil energies from direct Dark Matter detection experiments directly and…

High Energy Physics - Phenomenology · Physics 2018-08-02 Yu Bai , Weichao Sun , Chung-Lin Shan

WIMPs and axions are the two best motivated candidates to compose the Dark Matter of the Universe. An important number of experimental groups are developing and using different techniques for their direct detection. An updated review of…

High Energy Physics - Experiment · Physics 2007-05-23 Igor G. Irastorza

In the last decade direct detection Dark Matter (DM) experiments have increased enormously their sensitivity and ton-scale setups have been proposed, especially using germanium and xenon targets with double readout and background…

Instrumentation and Methods for Astrophysics · Physics 2015-06-19 D. G. Cerdeno , C. Cuesta , M. Fornasa , E. Garcia , C. Ginestra , C. Marcos , M. Martinez , Y. Ortigoza , M. Peiro , J. Puimedon , M. L. Sarsa

In the present work we examine the possibility of detecting light dark matter particles (WIMP) utilizing their possible interactions with the electrons. Employing reasonable theoretical models we evaluate the expected event rates in the…

High Energy Physics - Phenomenology · Physics 2019-04-11 J. D. Vergados

The underlaying assumptions and uncertainties involved in the derivation of WIMP exclusion limits from XENON10 and XENON100 detectors are examined. In view of these, recent claims of sensitivity to light-mass Weakly Interacting Massive…

Cosmology and Nongalactic Astrophysics · Physics 2011-06-15 J. I. Collar

The theoretical interpretation of dark matter (DM) experiments is hindered by uncertainties on the dark matter density and velocity distribution inside the Solar System. In order to quantify those uncertainties, we present a parameter that…

High Energy Physics - Phenomenology · Physics 2018-12-14 Alejandro Ibarra , Bradley J. Kavanagh , Andreas Rappelt