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The direction dependence of the event rate in WIMP direct detection experiments provides a powerful tool for distinguishing WIMP events from potential backgrounds. We use a variety of (non-parametric) statistical tests to examine the number…

天体物理学 · 物理学 2010-11-19 Ben Morgan , Anne M. Green , Neil J. C. Spooner

The direction dependence of the WIMP direct detection rate provides a powerful tool for distinguishing a WIMP signal from possible backgrounds. We study the the number of events required to discriminate a WIMP signal from an isotropic…

天体物理学 · 物理学 2009-11-13 Ben Morgan , Anne M. Green

The CoGeNT and CRESST WIMP direct detection experiments have recently observed excesses of nuclear recoil events, while the DAMA/LIBRA experiment has a long standing annual modulation signal. It has been suggested that these excesses may be…

宇宙学与河外天体物理 · 物理学 2013-05-30 Ben Morgan , Anne M. Green

We study the consequences of limited recoil sense reconstruction on the number of events required to reject isotropy and detect a WIMP signal using a directional detector. For a constant probability of determining the sense correctly, 3-d…

天体物理学 · 物理学 2008-11-26 Anne M. Green , Ben Morgan

Directional detection is a promising Dark Matter search strategy. Indeed, WIMP-induced recoils present a direction dependence toward the Cygnus constellation, while background-induced recoils exhibit an isotropic distribution in the…

宇宙学与河外天体物理 · 物理学 2015-05-27 J. Billard , F. Mayet , C. Grignon , D. Santos

The signals expected in WIMP direct detection experiments depend on the ultra-local dark matter distribution. Observations probe the local density, circular speed and escape speed, while simulations find velocity distributions that deviate…

宇宙学与河外天体物理 · 物理学 2011-01-27 Anne M. Green

Weakly interacting massive particles (WIMPs) are one of the leading candidates for dark matter. Currently, the most promising method to detect many different WIMP candidates is the direct detection of the recoil energy deposited in a…

天体物理学 · 物理学 2010-10-27 Manuel Drees , Chung-Lin Shan

Directional detection of Galactic Dark Matter is a promising search strategy for discriminating genuine WIMP events from background ones. Technical progress on gaseous detectors and read-outs has permitted the design and construction of…

宇宙学与河外天体物理 · 物理学 2014-11-20 J. Billard , F. Mayet , J. F. Macias-Perez , D. Santos

Directional detection of galactic Dark Matter is a promising search strategy for discriminating genuine WIMP events from background ones. However, to take full advantage of this powerful detection method, one need to be able to extract…

宇宙学与河外天体物理 · 物理学 2010-04-15 J. Billard , F. Mayet , J. F. Macias-Perez , D. Santos , C. Grignon , O. Guillaudin

New techniques for the laboratory direct detection of dark matter weakly interacting massive particles (WIMPs) are sensitive to the recoil direction of the struck nuclei. We compute and compare the directional recoil rates…

天体物理学 · 物理学 2008-11-26 Moqbil S. Alenazi , Paolo Gondolo

Distinguishing the signals due to scattering of WIMP dark matter off of nuclear targets from those due to background noise is a major challenge. The Earth's motion relative to the galactic halo should produce halo-dependent seasonal…

高能物理 - 唯象学 · 物理学 2009-10-31 Craig J. Copi , Junseong Heo , Lawrence M. Krauss

Directional detection is a promising direct Dark Matter (DM) search strategy. The angular distribution of the nuclear recoil tracks from WIMP events should present an anisotropy in galactic coordinates. This strategy requires both a…

Cosmological observations indicate that most of the matter in the Universe is Dark Matter. Dark Matter in the form of Weakly Interacting Massive Particles (WIMPs) can be detected directly, via its elastic scattering off target nuclei. Most…

Directional detection is a promising dark matter search strategy. Indeed, weakly interacting massive particle (WIMP)-induced recoils would present a direction dependence toward the Cygnus constellation, while background-induced recoils…

宇宙学与河外天体物理 · 物理学 2011-04-22 J. Billard , F. Mayet , D. Santos

We study the dependence of the exposure required to directly detect a WIMP directional recoil signal on the capabilities of a directional detector. Specifically we consider variations in the nuclear recoil energy threshold, the background…

天体物理学 · 物理学 2008-11-26 Anne M. Green , Ben Morgan

Direct detection of dark matter with directional sensitivity is a promising concept for improving the search for weakly interacting massive particles. With information on the direction of WIMP induced nuclear recoils one has access to the…

高能物理 - 唯象学 · 物理学 2015-10-15 Ciaran A. J. O'Hare

Weakly Interacting Massive Particles (WIMPs) are one of the leading candidates for Dark Matter. Currently, the most promising method to detect WIMPs is the direct detection of the recoil energy deposited in a low-background laboratory…

天体物理学 · 物理学 2011-11-10 Chung-Lin Shan

Directional detection is a promising search strategy to discover galactic Dark Matter. Taking advantage on the rotation of the Solar system around the Galactic center through the Dark Matter halo, it allows to show a direction dependence of…

宇宙学与河外天体物理 · 物理学 2010-09-14 J. Billard , F. Mayet , D. Santos

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

In this paper, as the second 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 investigate the…

高能物理 - 唯象学 · 物理学 2021-03-12 Chung-Lin Shan
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