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Related papers: Direct detection of non-galactic light dark matter

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In some scenarios, the dark matter particle predominantly scatters inelastically with the target, producing a heavier neutral particle in the final state. In this class of scenarios, the reach in parameter space of direct detection…

High Energy Physics - Phenomenology · Physics 2023-04-19 Gonzalo Herrera , Alejandro Ibarra , Satoshi Shirai

Recent astronomical data strongly suggest that a significant part of the dark matter, composing the Local Group and Virgo Supercluster, is not incorporated into the galaxy haloes and forms diffuse components of these galaxy clusters.…

Cosmology and Nongalactic Astrophysics · Physics 2014-02-06 Anton N. Baushev

We calculate the contribution of extragalactic dark matter to the local dark matter density and flux in the Milky Way. By analyzing the Galactic escape velocity as a function of direction, we establish the criterion for separating dark…

High Energy Physics - Phenomenology · Physics 2025-10-20 Shokhruz Kakharov , Abraham Loeb

If dark matter (DM) particles are lighter than a few MeV/$c^2$ and can scatter off electrons, their interaction within the solar interior results in a considerable hardening of the spectrum of galactic dark matter received on Earth. For a…

High Energy Physics - Phenomenology · Physics 2018-11-19 Haipeng An , Maxim Pospelov , Josef Pradler , Adam Ritz

Dark matter halos contain a wealth of substructure in the form of subhalos and tidal streams. Enhancements in the dark matter density of these regions leads to enhanced rates in direct detection experiments, as well as enhanced dark matter…

High Energy Astrophysical Phenomena · Physics 2009-12-09 Savvas M. Koushiappas , Marc Kamionkowski

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

The recent WMAP data have confirmed that exotic dark matter together with the vacuum energy (cosmological constant) dominate in the flat Universe. Thus the direct dark matter search, consisting of detecting the recoiling nucleus, is central…

High Energy Physics - Phenomenology · Physics 2016-09-06 J. D. Vergados , Amand Faessler

Despite strong evidence for the existence of large amounts of dark matter (DM) in our Universe, there is no direct indication of its presence in our own solar system. All estimates of the local DM density rely on extrapolating results on…

High Energy Physics - Phenomenology · Physics 2021-12-23 Bradley J. Kavanagh , Timon Emken , Riccardo Catena

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…

The velocity distribution function of dark matter particles is expected to show significant departures from a Maxwell-Boltzmann distribution. This can have profound effects on the predicted dark matter - nucleon scattering rates in direct…

Astrophysics of Galaxies · Physics 2014-11-20 M. Kuhlen , N. Weiner , J. Diemand , P. Madau , B. Moore , D. Potter , J. Stadel , M. Zemp

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

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

Tidal stripping of dark matter from subhalos falling into the Milky Way produces narrow, cold tidal streams as well as more spatially extended "debris flows" in the form of shells, sheets, and plumes. Here we focus on the debris flow in the…

Astrophysics of Galaxies · Physics 2013-05-30 Michael Kuhlen , Mariangela Lisanti , David N. Spergel

In hierarchical structure formation models of disk galaxies, a dark matter disk forms as massive satellites are preferentially dragged into the disk-plane where they dissolve. Here, we quantify the importance of this dark disk for direct…

Astrophysics · Physics 2010-02-17 T. Bruch , J. Read , L. Baudis , G. Lake

Non-baryonic, or "dark," matter is believed to be a major component of the total mass budget of the universe. We review the candidates for particle dark matter and discuss the prospects for direct detection (via interaction of dark matter…

Astrophysics · Physics 2008-11-26 Gianfranco Bertone , David Merritt

We study the indirect detection of dark matter when the local dark matter velocity distribution depends upon position, as expected for the Milky Way and its dwarf spheroidal satellites, and the annihilation cross-section is not purely…

High Energy Astrophysical Phenomena · Physics 2015-06-16 Francesc Ferrer , Daniel R. Hunter

Dark matter with MeV scale mass is difficult to detect with standard direct search detectors. However, they can be searched for by considering the up-scattering of kinetic energies by cosmic rays. Because the dark matter density is higher…

Cosmology and Nongalactic Astrophysics · Physics 2023-08-01 Keiko I. Nagao , Satoshi Higashino , Tatsuhiro Naka , Kentaro Miuchi

Dark matter in spiral galaxies like the Milky Way may take the form of a dark plasma. Hidden sector dark matter charged under an unbroken $U(1)'$ gauge interaction provides a simple and well defined particle physics model realising this…

Astrophysics of Galaxies · Physics 2016-01-27 Jackson D. Clarke , Robert Foot

Exotic dark matter together with dark energy or cosmological constant seem to dominate in the Universe. An even higher density of such matter seems to be gravitationally trapped in our Galaxy. The nature of dark matter can be unveiled only,…

Nuclear Theory · Physics 2009-09-29 J. D. Vergados

We attempt to estimate the uncertainty in the constraints on the spin independent dark matter-nucleon cross section due to our lack of knowledge of the dark matter phase space in the galaxy. We fit the density of dark matter before…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 Malcolm Fairbairn , Tom Douce , Jace Swift
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