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A low pressure time projection chamber for the detection of WIMPs is discussed. Discrimination against Compton electron background in such a device should be very good, and directional information about the recoil atoms would be obtainable.…

天体物理学 · 物理学 2007-05-23 M. J. Lehner , K. Griest , C. J. Martoff , G. E. Masek , T. Ohnuki , D. Snowden-Ifft , N. J. C. Spooner

The majority of gamma-ray emission from Galactic dark matter annihilation is likely to be detected as a contribution to the diffuse gamma-ray background. I show that dark matter substructure in the halo of the Galaxy induces characteristic…

天体物理学 · 物理学 2011-07-13 Jennifer M. Siegal-Gaskins

We obtain predictions for the properties of cold dark matter annihilation radiation using high resolution hydrodynamic zoom-in cosmological simulations of Milky Way-like galaxies (APOSTLE project) carried out as part of the "Evolution and…

The dark matter direct detection rates are highly correlated with the phase space distribution of dark matter particles in our galactic neighbourhood. In this paper, we make a systematic study of the impact of astrophysical uncertainties on…

高能物理 - 唯象学 · 物理学 2021-11-16 Tarak Nath Maity , Tirtha Sankar Ray , Sambo Sarkar

The event detection rates for the WIMP (a dark matter candidate) are calculated with $^{73}$Ge as the detector. The calculations are performed within the deformed shell model (DSM) based on Hartree-Fock states. First the energy levels and…

核理论 · 物理学 2021-07-15 R. Sahu , V. K. B. Kota

Helioseismology can be used to place new constraints on the properties of dark matter, allowing solar observations to complement more conventional dark matter searches currently in operation. During the course of its lifetime, the Sun…

太阳与恒星天体物理 · 物理学 2011-10-07 Ryan Hamerly , Alexander Kosovichev

The transient phenomena produced in solid noble gases by the stopping of the recoils resulting from the elastic scattering processes of WIMPs from the galactic halo were modelled, as dependencies of the temperatures of lattice and…

天体物理仪器与方法 · 物理学 2015-05-27 Ionel Lazanu , Sorina Lazanu

Dark matter particles can form halos gravitationally bound to massive astrophysical objects. The Earth could have such a halo where depending on the particle mass, the halo either extends beyond the surface or is confined to the Earth's…

高能物理 - 唯象学 · 物理学 2023-11-10 Tony Gherghetta , Andrey Shkerin

The sensitivity of experiments looking for annual modulated signals is discussed and analyzed. The choice of energy intervals for rate integration and enhancing the signal-to-noise ratio of the predicted WIMP signal is addressed. Special…

天体物理学 · 物理学 2009-10-30 F. Hasenbalg

We present a systematic halo-independent analysis of available Weakly Interacting Massive Particles (WIMP) direct detection data within the framework of Inelastic Dark Matter (IDM). We show that, when the smallest number of assumptions is…

宇宙学与河外天体物理 · 物理学 2014-09-03 Stefano Scopel , KookHyun Yoon

Weakly interacting massive particles (WIMPs) are among the favored candidates for cold dark matter in the universe. The phenomenology of supersymmetric WIMPs has been quite developed during recent years. However, there are other…

高能物理 - 唯象学 · 物理学 2009-11-07 E. A. Baltz , L. Bergstrom

We investigate the diurnal modulation of the event rate for dark matter scattering on solid targets arising from the directionally dependent defect creation threshold energy. In particular, we quantify how this effect would help in…

Clumping of elementary dark matter in the Galaxy halo may be inevitable. If so, the nondetection of certain dark matter candidates could simply mean that the local halo density is low. Conversely, indirect detection of annihilation products…

天体物理学 · 物理学 2007-05-23 Ira Wasserman

Exotic dark matter together with the vacuum energy or cosmological constant seem to dominate in the Universe. An even higher density of such matter seems to be gravitationally trapped in the Galaxy. Thus its direct detection is central to…

高能物理 - 唯象学 · 物理学 2014-11-17 J. D. Vergados

In this article I review model-independent procedures for extracting properties of Weakly Interacting Massive Particles (WIMPs) from direct Dark Matter detection experiments. Neither prior knowledge about the velocity distribution function…

高能物理 - 唯象学 · 物理学 2010-05-27 Chung-Lin Shan

We propose a new signature for weakly interacting massive particle (WIMP) dark matter, a spectral feature in the diffuse extragalactic gamma-ray radiation. This feature, a sudden drop of the gamma-ray intensity at an energy corresponding to…

天体物理学 · 物理学 2010-04-06 Lars Bergstrom , Joakim Edsjo , Piero Ullio

We consider a simple generic dissipative dark matter model: a hidden sector featuring two dark matter particles charged under an unbroken $U(1)'$ interaction. Previous work has shown that such a model has the potential to explain dark…

高能物理 - 唯象学 · 物理学 2018-12-13 R. Foot , S. Vagnozzi

Measurement of the direction of the elastic nuclear recoil track and ionization charge distribution along it, gives unique possibility for unambiguous detection of the dark matter WIMP particle. Within current radiation detection…

仪器与探测器 · 物理学 2017-08-23 N. J. C. Spooner , P. Majewski

We derive constraints on the annual modulation signal in Dark Matter (DM) direct detection experiments in terms of the unmodulated event rate. A general bound independent of the details of DM distribution follows from the assumption that…

高能物理 - 唯象学 · 物理学 2015-06-03 Juan Herrero-Garcia , Thomas Schwetz , Jure Zupan

Direct detection of dark matter with directional sensitivity has the potential to discriminate the dark matter velocity distribution. Especially, it will be suitable to discriminate isotropic distribution from anisotropic one. Analyzing…

天体物理仪器与方法 · 物理学 2018-05-08 Keiko I. Nagao
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