English
Related papers

Related papers: The first WIMPy halos

200 papers

We analyze the properties of dark matter halos in the cold-plus-warm dark matter cosmologies (CWDM). We study their dependence on the fraction and velocity dispersion of the warm particle, keeping the free-streaming scale fixed. To this end…

Cosmology and Nongalactic Astrophysics · Physics 2013-01-29 Andrea V. Maccio' , Oleg Ruchayskiy , Alexey Boyarsky , Juan C. Munoz-Cuartas

The kinetic decoupling of weakly interacting massive particles (WIMPs) in the early universe sets a scale that can directly be translated into a small-scale cutoff in the spectrum of matter density fluctuations. The formalism presented here…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-18 Torsten Bringmann

Weakly interacting massive particles (WIMPs) are one of the leading candidates for Dark Matter. So far we can use direct Dark Matter detection to estimate the mass of halo WIMPs only by fitting predicted recoil spectra to future…

High Energy Physics - Phenomenology · Physics 2011-11-10 Chung-Lin Shan , Manuel Drees

The details of what constitutes the majority of the mass that makes up dark matter in the Universe remains one of the prime puzzles of cosmology and particle physics today - eighty years after the first observational indications. Today, it…

High Energy Astrophysical Phenomena · Physics 2015-12-16 Stefan Funk

Weakly Interacting Massive Particles (WIMPs) are one of the leading candidates for Dark Matter. We developed a model-independent method for determining the WIMP mass by using data (i.e., measured recoil energies) of direct detection…

High Energy Physics - Phenomenology · Physics 2009-02-02 Manuel Drees , Chung-Lin Shan

We present a comprehensive analysis of the halo model of cosmological large to small-scale structure statistics in the case of warm dark matter (WDM) structure formation scenarios. We include the effects of WDM on the linear matter power…

Cosmology and Nongalactic Astrophysics · Physics 2011-09-29 Robyn M. Dunstan , Kevork N. Abazajian , Emil Polisensky , Massimo Ricotti

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

In this paper, as the third part of the third step of our study on developing data analysis procedures for using 3-dimensional information offered by directional direct Dark Matter detection experiments in the future, we introduce a…

High Energy Astrophysical Phenomena · Physics 2021-03-15 Chung-Lin Shan

Weakly Interacting Massive Particles (WIMPs) are among the main candidates for the relic dark matter (DM). The idea of the direct DM detection relies on elastic spin-dependent (SD) and spin-independent (SI) interaction of WIMPs with target…

High Energy Physics - Phenomenology · Physics 2009-10-20 V. A. Bednyakov , H. V. Klapdor-Kleingrothaus

In this work, we investigate dark matter (DM) detection in the context of weakly interacting massive particles (WIMPs). Upon annihilation, WIMPs generate cascades of secondary particles through various channels, many of which culminate in…

High Energy Astrophysical Phenomena · Physics 2026-03-24 Ignacio Martínez López , Rafael Alves Batista , Miguel A. Sánchez-Conde , Antonio Juan Rubio-Montero

Determining the dark matter (DM) mass is of paramount importance for understanding dark matter. We present a novel parametrization of the DM speed distribution which will allow the DM mass to be accurately measured using data from Weakly…

Cosmology and Nongalactic Astrophysics · Physics 2013-07-19 Bradley J. Kavanagh , Anne M. Green

We present results of cosmological N-body hydrodynamic chemistry simulations of primordial structure growth and evolution in a scenario with warm dark matter (WDM) having a mass of 3 keV (thermal relic) and compare with a model consisting…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-23 Umberto Maio , Matteo Viel

We study the formation of dark halos in a $\Lambda$CDM universe under the assumption that Cold Dark Matter particles have a finite cross-section for elastic collisions. We compare evolution when CDM mean free paths are comparable to halo…

Astrophysics · Physics 2011-07-18 Naoki Yoshida , Volker Springel , Simon D. M. White , Giuseppe Tormen

Warm dark matter (WDM) is an intriguing model of structure formation from the point of view of both cosmology and particle physics. We consider a one-parameter family of WDM models. The linear power spectra for these models is calculated…

Astrophysics · Physics 2010-11-30 Stephane Colombi , Scott Dodelson , Lawrence M. Widrow

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

Weakly Interacting Massive Particles (WIMPs) are one of the leading candidates for Dark Matter. So far the usual procedure for constraining the WIMP-nucleon cross sections in direct Dark Matter detection experiments have been to fit the…

High Energy Physics - Phenomenology · Physics 2011-07-05 Chung-Lin Shan

Weakly Interacting Massive Particles (WIMPs) are one of the leading candidates for Dark Matter. We develop a model-independent method for determining the mass $m_\chi$ of the WIMP by using data (i.e., measured recoil energies) of direct…

High Energy Physics - Phenomenology · Physics 2009-01-06 Manuel Drees , Chung-Lin Shan

Weakly Interacting Massive Particles (WIMPs) are one of the leading candidates for Dark Matter. For understanding the properties of WIMPs and identifying them among new particles produced at colliders (hopefully in the near future),…

High Energy Physics - Phenomenology · Physics 2010-02-17 Manuel Drees , Chung-Lin Shan

We investigate for the first time the effects of a Warm Dark Matter (WDM) power spectrum on the statistical properties of galaxies using a semi-analytic model of galaxy formation. The WDM spectrum we adopt as a reference case is suppressed…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 N. Menci , F. Fiore , A. Lamastra

The halo independent comparison of direct dark matter detection data eliminates the need to make any assumption on the uncertain local dark matter distribution and is complementary to the usual data comparison which required assuming a dark…

High Energy Physics - Phenomenology · Physics 2014-11-05 Graciela B. Gelmini