Directional statistics for realistic weakly interacting massive particle direct detection experiments. II. 2D readout

2005 ◽  
Vol 72 (12) ◽  
Author(s):  
Ben Morgan ◽  
Anne M. Green
Keyword(s):  
Direct Detection ◽  
Massive Particle ◽  
Directional Statistics ◽  
Weakly Interacting

scholarly journals Experimental Progress in the Direct Detection of Dark Matter

2005 ◽  
Vol 13 ◽  
pp. 38-41
Author(s):  
Nigel J.T. Smith
Keyword(s):  
Dark Matter ◽  
Direct Detection ◽  
Massive Particle ◽  
Experimental Techniques ◽  
Current Status ◽  
Weakly Interacting ◽  
The Galaxy ◽  
Experimental Approaches

AbstractSeveral experimental approaches are being utilised for the direct detection of the hypothetical weakly interacting massive particle which may constitute the majority of the non-luminous component of the Galaxy. These experimental techniques exploit the coherent recoil of target nuclei during an interaction and include thermal, ionisation, scintillation and tracking detectors. The challenges associated with this detection, the techniques employed and the current status of these searches are reviewed.

scholarly journals DETECTION AND IDENTIFICATION OF DARK MATTER

2011 ◽  
Vol 01 ◽  
pp. 98-107
Author(s):  
DAVID G. CERDEÑO
Keyword(s):  
Dark Matter ◽  
Particle Physics ◽  
Extra Dimensions ◽  
Direct Detection ◽  
Massive Particle ◽  
New Physics ◽  
Little Higgs ◽  
Weakly Interacting ◽  
Detection And Identification ◽  
Modern Physics

Dark matter is an abundant component of our Universe and its detection and identification constitutes one of the most challenging goals in modern Physics. Particle Physics provides well motivated candidates for dark matter, among which a generic weakly-interacting massive particle (WIMP) stands out for its simplicity and the fact that WIMP candidates can be found in many theories proposing new physics at the TeV scale, such as Supersymmetry, models with Universal Extra Dimensions and Little Higgs Theories. I will review the properties of some of the main WIMP candidates and their detectability (with special emphasis on direct detection experiments). I will also address the strategies that can be used to discriminate among them in the case of a future detection.

scholarly journals WIMP direct detection and halo structure

2004 ◽  
Vol 220 ◽  
pp. 483-488
Author(s):  
Anne M. Green
Keyword(s):  
Direct Detection ◽  
Massive Particle ◽  
Particle Detection ◽  
Annual Modulation ◽  
Halo Structure ◽  
Weakly Interacting ◽  
Galaxy Halos ◽  
The Status ◽  
Modulation Signal ◽  
Background Events

Weakly Interacting Massive Particle (WIMP) direct detection experiments are just reaching the sensitivity required to detect Galactic dark matter in the form of neutralinos (or indeed any stable weakly interacting particle). Detection strategies and data analyses are often based on the simplifying assumption of a standard spherical, isothermal halo model, but observations and numerical simulations indicate that galaxy halos are in fact triaxial and anisotropic, and contain substructure. the annual modulation and direction dependence of the event rate (due to the motion of the Earth) provide the best prospects of distinguishing WIMP scattering from background events, however these signals depend sensitively on the local WIMP velocity distribution. I briefly review the status of WIMP direct detection experiments before discussing the dependence of the annual modulation signal on astrophysical input, in particular the structure of the Milky Way halo, and the possibility that the local WIMP distribution is not smooth.

scholarly journals Scintillating bolometers: A key for determining WIMP parameters

2014 ◽  
Vol 29 (19) ◽  
pp. 1443009 ◽  
Author(s):  
D. G. Cerdeño ◽  
C. Marcos ◽  
M. Peiró ◽  
M. Fornasa ◽  
C. Cuesta ◽  
...  
Keyword(s):  
Cross Section ◽  
Direct Detection ◽  
Massive Particle ◽  
Thermal Quenching ◽  
Good Energy Resolution ◽  
Discrimination Capability ◽  
Good Energy ◽  
Excellent Tool ◽  
Nuclear Structure Functions

In the last decade direct detection Dark Matter (DM) experiments have increased enormously their sensitivity and ton-scale setups have been proposed, especially using germanium and xenon targets with double readout and background discrimination capabilities. In light of this situation, we study the prospects for determining the parameters of Weakly Interacting Massive Particle (WIMP) DM (mass, spin-dependent (SD) and spin-independent (SI) cross-section off nucleons) by combining the results of such experiments in the case of a hypothetical detection. In general, the degeneracy between the SD and SI components of the scattering cross-section can only be removed using targets with different sensitivities to these components. Scintillating bolometers, with particle discrimination capability, very good energy resolution and threshold and a wide choice of target materials, are an excellent tool for a multitarget complementary DM search. We investigate how the simultaneous use of scintillating targets with different SD-SI sensitivities and/or light isotopes (as the case of CaF 2 and NaI ) significantly improves the determination of the WIMP parameters. In order to make the analysis more realistic we include the effect of uncertainties in the halo model and in the spin-dependent nuclear structure functions, as well as the effect of a thermal quenching different from 1.

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