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Prospects of WIMP searches using the annual modulation signature are discussed on statistical grounds, introducing sensitivity plots for the WIMP-nucleon scalar cross section.

High Energy Physics - Phenomenology · Physics 2009-10-31 S. Scopel , S. Cebrian , E. Garcia , D. Gonzalez , I. G. Irastorza , A. Morales , J. Morales , A. Ortiz de Solorzano , A. Peruzzi , J. Puimedon , M. L. Sarsa , J. A. Villar

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…

Astrophysics · Physics 2009-10-30 F. Hasenbalg

The count rate of Weakly Interacting Massive Particle (WIMP) dark matter candidates in direct detection experiments experiences an annual modulation due to the Earth's motion around the Sun. In the standard isothermal halo model, the signal…

Astrophysics · Physics 2009-11-10 Matthew J. Lewis , Katherine Freese

Currently the best prospect for detecting Weakly Interacting Massive Particles (WIMPs) is via the annual modulation, which occurs due to the Earth's rotation around the Sun, of the direct detection signal. We investigate the effect of…

Astrophysics · Physics 2014-10-13 Anne M. Green

Weakly Interacting Massive Particles (WIMPs) are well-established dark matter candidates. WIMP interactions with sensitive detectors are expected to display a characteristic annual modulation in rate. We release a dataset spanning 3.4 years…

Fifteen months of cumulative CoGeNT data are examined for indications of an annual modulation, a predicted signature of Weakly Interacting Massive Particle (WIMP) interactions. Presently available data support the presence of a modulated…

We compare the sensitivity of WIMP detection via direct separation of possible signal vs. background to WIMP detection via detection of an annual modulation, in which signal and background cannot be separated on an event-by-event basis. In…

Astrophysics · Physics 2009-11-07 Craig J. Copi , Lawrence M. Krauss

A search for dark matter was conducted by looking for an annual modulation signal due to the Earth's rotation around the Sun using XMASS, a single phase liquid xenon detector. The data used for this analysis was 359.2 live days times 832 kg…

We calculate the diurnal and annual modulation of the signals in axion and WIMP dark matter detectors on Earth caused by a cold flow of dark matter in the Solar neighborhood. The effects of the Sun's and the Earth's gravity, and of the…

Astrophysics · Physics 2009-11-10 Fu-Sin Ling , Pierre Sikivie , Stuart Wick

The signals in dark matter direct-detection experiments should exhibit modulation signatures due to the Earth's motion with respect to the Galactic dark matter halo. The annual and daily modulations, due to the Earth's revolution about the…

Cosmology and Nongalactic Astrophysics · Physics 2016-06-21 Vivian Britto , Joel Meyers

An annual modulation signal due to the Earth orbiting around the Sun would be one of the strongest indications of the direct detection of dark matter. In 2016, we reported a search for dark matter by looking for this annual modulation with…

Direct detection experiments, which are designed to detect the scattering of dark matter off nuclei in detectors, are a critical component in the search for the Universe's missing matter. The count rate in these experiments should…

Cosmology and Nongalactic Astrophysics · Physics 2017-01-04 Katherine Freese , Mariangela Lisanti , Christopher Savage

Weakly Interacting Massive Particle (WIMP) direct detection event rate calculations usually rely on fairly simple, essentially static, analytic halo models. This is largely since the resolution of numerical simulations is not yet large…

Astrophysics · Physics 2009-12-31 Anne M Green

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…

Astrophysics · Physics 2007-05-23 Anne M Green

The orbit of the Earth about the Sun produces an annual modulation in the WIMP direct detection rate. If the local WIMP velocity distribution is isotropic then the modulation is roughly sinusoidal with maximum in June, however if the…

Astrophysics · Physics 2014-10-13 Anne M Green

Direction sensitive direct detection of Weakly Interacting Massive Particles (WIMPs) as dark matter would provide an unambiguous non-gravitational signature of dark matter (DM). The diurnal variation of DM signal due to earth's rotation…

High Energy Physics - Phenomenology · Physics 2012-04-16 Abhijit Bandyopadhyay , Debasish Majumdar

We show that the main features of the annual modulation of the signal expected in a WIMP direct detection experiment, i.e. its sinusoidal dependence with time, the occurrence of its maxima and minima during the year and (under some…

High Energy Physics - Phenomenology · Physics 2015-06-25 N. Fornengo , S. Scopel

We show that in the late-infall model of our galactic halo by P. Sikivie the expected phase of the annual modulation of a WIMP halo signal in direct detection experiments is opposite to the one usually expected. If a non-virialized halo…

High Energy Physics - Phenomenology · Physics 2009-10-31 G. Gelmini , P. Gondolo

Following our earlier work on the 3-dimensional effective velocity distribution of Galactic WIMPs (not only impinging on our detectors but also) scattering off target nuclei, in this paper, we demonstrate the normal and a "reverse" annual…

High Energy Physics - Phenomenology · Physics 2022-04-14 Chung-Lin Shan

In addition to a smooth component of WIMP dark matter in galaxies, there may be streams of material; the effects of WIMP streams on direct detection experiments is examined in this paper. The contribution to the count rate due to the stream…

Astrophysics · Physics 2008-11-26 Chris Savage , Katherine Freese , Paolo Gondolo
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