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The DAMA/NaI and DAMA/LIBRA annual modulation data, which may be interpreted as a signal for the existence of weakly interacting dark matter (WIMPs) in our galactic halo, are re-examined in light of new measurements of the local velocity…

Cosmology and Nongalactic Astrophysics · Physics 2009-10-02 Christopher Savage , Katherine Freese , Paolo Gondolo , Douglas Spolyar

The DAMA experiment searches for Weakly Interacting Massive Particle (WIMP) dark matter via its expected but rare interactions within the detector, where the interaction rates will modulate throughout the year due to the orbital motion of…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-16 Chris Kelso , Pearl Sandick , Christopher Savage

The DAMA/LIBRA collaboration has recently released updated results from their search for the annual modulation signal expected from Dark Matter (DM) scattering in their NaI detectors. We have fitted the updated DAMA result for the…

High Energy Physics - Phenomenology · Physics 2018-07-10 Sunghyun Kang , Stefano Scopel , Gaurav Tomar , Jong-Hyun Yoon

Since the DAMA/LIBRA collaboration released updated results from their search for the annual modulation signal expected from Dark Matter (DM) scattering in their NaI detectors, we have fitted the updated DAMA result for the modulation…

High Energy Physics - Phenomenology · Physics 2018-10-26 Sunghyun Kang , Stefano Scopel , Gaurav Tomar , Jong-Hyun Yoon

We examine whether the annual modulation found by the DAMA dark matter experiment can be explained by Weakly Interacting Massive Particles (WIMPs), in light of new null results from other experiments. CDMS II has already ruled out most…

Astrophysics · Physics 2009-11-10 Christopher Savage , Paolo Gondolo , Katherine Freese

There is a long standing debate about whether or not the annual modulation signal reported by the DAMA/LIBRA collaboration is induced by Weakly Interacting Massive Particles~(WIMP) in the galaxy's dark matter halo scattering from nuclides…

Recently, the DAMA/LIBRA collaboration released updated results from their search for the annual modulation signal from Dark Matter (DM) scattering in the detector. Besides approximately doubling the exposure of the DAMA/LIBRA data set, the…

Cosmology and Nongalactic Astrophysics · Physics 2019-01-03 Sebastian Baum , Katherine Freese , Chris Kelso

We study whether spin-independent scattering of weakly-interacting massive particles (WIMPs) with nuclei can account for the annual modulation signal reported by DAMA. We consider both elastic and inelastic scattering processes. We find…

High Energy Physics - Phenomenology · Physics 2009-05-29 Frank Petriello , Kathryn M. Zurek

Weakly interacting massive particles (WIMPs) are well-motivated candidates for dark matter. One signature of galactic WIMPs is the annual modulation expected in a detector's interaction rate, which arises from Earth's revolution around the…

Direct detection of Weakly Interacting Massive Particle (WIMP) candidates of Dark Matter (DM) is studied within the context of a self-consistent truncated isothermal model of the finite-size dark halo of the Galaxy based on the "King model"…

Cosmology and Nongalactic Astrophysics · Physics 2014-01-03 Soumini Chaudhury , Pijushpani Bhattacharjee , Ramanath Cowsik

We present a halo-independent analysis of direct detection data on "light WIMPs," i.e. weakly interacting massive particles with mass close to or below 10 GeV/c^2. We include new results from silicon CDMS detectors (bounds and excess…

High Energy Physics - Phenomenology · Physics 2015-06-15 Eugenio Del Nobile , Graciela B. Gelmini , Paolo Gondolo , Ji-Haeng Huh

We perform a generalized analysis of data from WIMP search experiments for point-like WIMPs of arbitrary spin and general Lorenz-invariant WIMP-nucleus interaction. We show that in the non-relativistic limit only spin-independent (SI) and…

High Energy Physics - Phenomenology · Physics 2008-11-26 Andriy Kurylov , Marc Kamionkowski

A weakly interacting massive particle (WIMP) weighing only a few GeV has been invoked as an explanation for the signal from the DAMA/LIBRA experiment. We show that the data from DAMA/LIBRA are now powerful enough to strongly constrain the…

High Energy Physics - Phenomenology · Physics 2009-06-30 Spencer Chang , Aaron Pierce , Neal Weiner

We discuss the interpretation of the annual modulation signal seen in the DAMA experiment in terms of spin-independent elastic WIMP scattering. Taking into account channeling in the crystal as well as the spectral signature of the…

High Energy Physics - Phenomenology · Physics 2010-05-12 Malcolm Fairbairn , Thomas Schwetz

The DAMA/NaI Collaboration has observed a 4-sigma C.L. model independent effect investigating the annual modulation signature in the counting rate of an NaI(Tl) set-up (total exposure of 57986 kg day) and the implications of this effect…

High Energy Physics - Phenomenology · Physics 2008-11-26 P. Belli , R. Cerulli , N. Fornengo , S. Scopel

We discuss the compatibility of the combined annual modulation effect measured by DAMA/LIBRA-phase1 and DAMA/LIBRA-phase2 with an explanation in terms of inelastic scattering events induced by the most general Galilean-invariant effective…

High Energy Physics - Phenomenology · Physics 2019-06-05 Sunghyun Kang , Stefano Scopel , Gaurav Tomar

Among the direct search experiments for weakly interacting massive particle (WIMP) dark matter, the DAMA experiment observed an annual modulation signal interpreted as WIMP interactions with a significance of 9.2$\sigma$. Recently, Jonathan…

High Energy Physics - Experiment · Physics 2015-08-26 Eunju Jeon , Yeongduk Kim

Recently, the DAMA/LIBRA collaboration has repeated and reinforced their claim to have detected an annual modulation in their signal rate, and have interpreted this observation as evidence for dark-matter particles at the 8.2 sigma…

High Energy Physics - Phenomenology · Physics 2009-02-26 Dan Hooper , Frank Petriello , Kathryn M. Zurek , Marc Kamionkowski

A claim for evidence of dark matter interactions in the DAMA experiment has been recently reinforced. We employ a new type of germanium detector to conclusively rule out a standard isothermal galactic halo of Weakly Interacting Massive…

The DAMA/LIBRA collaboration has detected an annual modulation of the recoil rate in NaI crystals with the phase expected for WIMP scattering events. This signal is dramatically inconsistent with upper limits from other experiments for…

Cosmology and Nongalactic Astrophysics · Physics 2010-09-14 Douglas P. Finkbeiner , Tongyan Lin , Neal Weiner
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