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We present a detailed analysis of the effect of an observationally determined dark matter (DM) velocity distribution function (VDF) of the Milky Way (MW) on DM direct detection rates. We go beyond local kinematic tracers and use rotation…

High Energy Physics - Phenomenology · Physics 2019-07-17 Sayan Mandal , Subhabrata Majumdar , Vikram Rentala , Ritoban Basu Thakur

For many working in particle physics and cosmology successful discovery and characterisation of the new particles that most likely explain the non-baryonic cold dark matter, known to comprise the majority of matter in the Universe, would be…

Astrophysics · Physics 2009-06-23 N. J. Spooner

We study the effects of substructure in the Galactic halo on direct detection of dark matter, on searches for energetic neutrinos from WIMP annihilation in the Sun and Earth, and on the enhancement in the WIMP annihilation rate in the halo.…

Astrophysics · Physics 2008-11-26 Marc Kamionkowski , Savvas M. Koushiappas

We discuss a novel dark matter signature relevant for directional detection of Weakly Interacting Massive Particles (WIMPs). For heavy enough WIMPs and low enough recoil energies, the maximum of the recoil rate is not in the direction of…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 Nassim Bozorgnia , Graciela B. Gelmini , Paolo Gondolo

We investigate the effect of a coupling between dark matter and dark energy on the rates for the direct detection of dark matter. The magnitude of the effect depends on the strength $\kappa$ of this new interaction relative to gravity. The…

High Energy Physics - Phenomenology · Physics 2008-11-26 N. Tetradis , J. D. Vergados , Amand Faessler

In the present paper we obtain the WIMP velocity distribution in our vicinity starting from spherically symmetric WIMP density profiles in a self consistent way by employing the Eddington approach. By adding a reasonable angular momentum…

Astrophysics · Physics 2015-05-13 J. D. Vergados

We argue that WIMP dark matter can annihilate via long-lived "WIMPonium" bound states in reasonable particle physics models of dark matter (DM). WIMPonium bound states can occur at or near threshold leading to substantial enhancements in…

Astrophysics · Physics 2010-05-07 John March-Russell , Stephen M. West

Directional detection is a promising Dark Matter search strategy. Taking advantage on the rotation of the Solar system around the galactic center through the Dark Matter halo, it allows to show a direction dependence of WIMP events that may…

Cosmology and Nongalactic Astrophysics · Physics 2016-11-15 F. Mayet , J. Billard , D. Santos

The DAMA experiment searches for Weakly Interacting Massive Particle (WIMP) dark matter via its expected but rare interactions within the detector, where the interaction rates will modulate throughout the year due to the orbital motion of…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-16 Chris Kelso , Pearl Sandick , Christopher Savage

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

The spatial and velocity distributions of dark matter particles in the Milky Way Halo affect the signals expected to be observed in searches for dark matter. Results from direct detection experiments are often analyzed assuming a simple…

Astrophysics of Galaxies · Physics 2016-11-08 Chris Kelso , Christopher Savage , Monica Valluri , Katherine Freese , Gregory S. Stinson , Jeremy Bailin

The WIMP "miracle" suggests a new physics threshold ranging from the weak scale up to several tens of TeVs. Obtaining the correct dark matter density in many theories aiming to solve the hierarchy problem may thus require some amount of…

High Energy Physics - Phenomenology · Physics 2014-09-30 Luca Vecchi

Cosmological structure formation predicts that our galactic halo contains an enormous hierarchy of substructures and streams, the remnants of the merging hierarchy that began with tiny Earth mass microhalos. If these structures persist…

Astrophysics of Galaxies · Physics 2015-03-19 Aurel Schneider , Lawrence M. Krauss , Ben Moore

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 show that the momentum dependence of dark matter interactions with nuclei can be probed in direct detection experiments without knowledge of the dark matter velocity distribution. This is one of the few properties of DM microphysics that…

High Energy Physics - Phenomenology · Physics 2014-10-14 John F. Cherry , Mads T. Frandsen , Ian M. Shoemaker

The DAMA/LIBRA collaboration has recently released updated results from their search for the annual modulation signal expected from Dark Matter (DM) scattering in their NaI detectors. We have fitted the updated DAMA result for the…

High Energy Physics - Phenomenology · Physics 2018-07-10 Sunghyun Kang , Stefano Scopel , Gaurav Tomar , Jong-Hyun Yoon

If dark matter consists of weakly interacting massive particles (WIMPs), annihilation of WIMPs in the galactic center may lead to an observable enhancement of high energy gamma ray fluxes. We predict the shape and normalization of the…

High Energy Physics - Phenomenology · Physics 2016-09-06 Andreas Birkedal , Konstantin T. Matchev , Maxim Perelstein , Andrew Spray

We introduce WimPyDD, a modular, object-oriented and customizable Python code that calculates accurate predictions for the expected rates in Weakly Interacting Massive Particle (WIMP) direct-detection experiments within the framework of…

High Energy Physics - Phenomenology · Physics 2022-04-13 Injun Jeong , Sunghyun Kang , Stefano Scopel , Gaurav Tomar

Dark matter is one of the most important open problems in particle physics and cosmology. Weakly interacting massive particles (WIMPs) appear as an appealing solution, providing the right relic density with a cross-section at the…

High Energy Physics - Phenomenology · Physics 2021-10-04 C. Siqueira , Guilherme N. Fortes , Aion Viana , Farinaldo Queiroz

In this thesis, I study the expected direct and indirect detection signals of dark matter. More precisely, I study three aspects of dark matter; I use hydrodynamic simulations to extract properties of weakly interacting dark matter that are…

High Energy Physics - Phenomenology · Physics 2017-06-06 Lina Necib