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Related papers: Small scale WIMP physics

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We outline a simple approach to understanding the physical origin of bias in the distribution of galaxies relative to that of dark matter. The first step is to specify how collapsed, virialized halos of dark matter trace the overall matter…

Astrophysics · Physics 2015-06-24 Guinevere Kauffmann , Adi Nusser , Matthias Steinmetz

The next generation of dark matter (DM) direct detection experiments and neutrino telescopes will probe large swaths of dark matter parameter space. In order to interpret the signals in these experiments, it is necessary to have good models…

High Energy Astrophysical Phenomena · Physics 2009-07-30 Annika H. G. Peter

Possible hints for WIMP dark matter with mass around 10 GeV coming from the DAMA, CoGeNT, and maybe also CRESST experiments are presented, and confronted with constraints from CDMS and XENON data. Focusing on spin-independent (SI)…

High Energy Physics - Phenomenology · Physics 2010-11-29 Thomas Schwetz

Whilst the need for dark matter was established almost a century ago, only its gravitational interaction has been confirmed so far, allowing for plethora of models for dark matter. The Weakly Interacting Massive Particles (WIMPs) category…

High Energy Physics - Phenomenology · Physics 2021-01-26 Chiara Arina

Interactions between dark matter (DM) and radiation (photons or neutrinos) in the early Universe suppress density fluctuations on small mass scales. Here we perform a thorough analysis of structure formation in the fully non-linear regime…

Cosmology and Nongalactic Astrophysics · Physics 2015-04-14 J. A. Schewtschenko , R. J. Wilkinson , C. M. Baugh , C. Boehm , S. Pascoli

We study the evolution of the first stars in the universe (Population III) from the early pre-Main Sequence until the end of helium burning in the presence of WIMP dark matter annihilation inside the stellar structure. The two different…

Astrophysics · Physics 2009-11-13 F. Iocco , A. Bressan , E. Ripamonti , R. Schneider , A. Ferrara , P. Marigo

We study the statistical properties (such as shape and spin) of high-z halos likely hosting the first (PopIII) stars with cosmological simulations including detailed gas physics. In the redshift range considered ($11 < z < 16$) the average…

Cosmology and Nongalactic Astrophysics · Physics 2013-01-03 Rafael S. de Souza , Benedetta Ciardi , Umberto Maio , Andrea Ferrara

A generic feature of weakly interacting massive particle (WIMP) dark matter models is the emission of photons over a broad energy band resulting from the stable yields of dark matter pair annihilation. Inverse Compton scattering off cosmic…

Astrophysics · Physics 2009-11-13 Tesla E. Jeltema , Stefano Profumo

The complementarity of direct, indirect and collider searches for dark matter has improved our understanding concerning the properties of the dark matter particle. In this short review, we present a step toward the fundamental nature of…

High Energy Physics - Phenomenology · Physics 2017-11-08 Farinaldo S. Queiroz

We discuss the damping of primordial dark matter fluctuations, taking into account explicitly the interactions of dark matter - whatever their intensity - both with itself and with other particle species. Relying on a general classification…

Astrophysics · Physics 2007-05-23 Celine Boehm , Pierre Fayet , Richard Schaeffer

Weak gravitational lensing observations probe the spectrum and evolution of density fluctuations and the cosmological parameters which govern them but are currently limited to small fields and subject to selection biases. We show how the…

Astrophysics · Physics 2009-10-31 Asantha Cooray , Wayne Hu , Jordi Miralda-Escude

In this last paper in a series of three on weakly interacting massive particle (WIMP) dark matter in the solar system, we focus on WIMPs bound to the system by gravitationally scattering off of planets. We present simulations of WIMP orbits…

High Energy Astrophysical Phenomena · Physics 2009-07-30 Annika H. G. Peter

The first stars to form in the universe may have been dark stars, powered by dark matter annihilation instead of nuclear fusion. The initial amount of dark matter gathered by the star gravitationally can sustain it only for a limited period…

Cosmology and Nongalactic Astrophysics · Physics 2011-03-18 Sofia Sivertsson , Paolo Gondolo

In the cold dark matter scenario, the smallest dark matter halos may be earth mass or smaller. These microhalos would be the densest dark matter objects in the Universe, making their accurate characterization important for astrophysical…

Cosmology and Nongalactic Astrophysics · Physics 2019-10-23 M. Sten Delos

Cold dark matter simulations appear to disagree with the observations on small distance scales. Here we consider a modified description of CDM particles which is implied by a new fundamental theory: In this picture, the dark matter is…

Astrophysics · Physics 2007-05-23 Antonio R. Mondragon , Roland E. Allen

Recently is has been suggested that the dearth of small halos around the Milky Way arises due to a modification of the primordial power spectrum of fluctuations from inflation. Such modifications would be expected to alter the formation of…

Astrophysics · Physics 2009-08-18 Martin White , Rupert A. C. Croft

The nature of the dark matter in the halo of our Galaxy is still largely unknown. The microlensing events found so far towards the Large Magellanic Cloud suggest that at most about 20% of the halo dark matter is in the form of MACHOs…

High Energy Physics - Phenomenology · Physics 2017-08-23 Philippe Jetzer

We have strong evidence on all cosmic scales, from galaxies to the largest structures ever observed, that there is more matter in the universe than we can see. Galaxies and clusters would fly apart unless they would be held together by…

Astrophysics · Physics 2008-11-26 Laura Baudis

Weakly Interacting Massive Particles (WIMPs) are a theoretical class of particles that are excellent dark matter candidates. WIMP annihilation or decay may produce essentially monochromatic gamma rays detectable by the Fermi Large Area…

High Energy Astrophysical Phenomena · Physics 2017-02-22 LAT Collaboration

The inelastic dark matter scenario was proposed to reconcile the DAMA annual modulation with null results from other experiments. In this scenario, WIMPs scatter into an excited state, split from the ground state by an energy delta…

High Energy Physics - Phenomenology · Physics 2011-02-01 Spencer Chang , Rafael F. Lang , Neal Weiner
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