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The DAMA/LIBRA experiment searches for evidence of Dark Matter scattering off nuclei. Data from DAMA show 9.2 sigma evidence for an annual modulation, consistent with Dark Matter having a cross section around 2x10^(-40) cm^2. However this…

High Energy Physics - Phenomenology · Physics 2014-08-22 Jonathan H. Davis

DAMA observes an annual modulation in their event rate, as might be expected from dark matter scatterings, while CoGeNT has reported evidence for a similar modulation. The simplest interpretation of these findings in terms of dark…

High Energy Physics - Phenomenology · Physics 2011-09-15 Mads T. Frandsen , Felix Kahlhoefer , John March-Russell , Christopher McCabe , Matthew McCullough , Kai Schmidt-Hoberg

The self consistency between the impressive DAMA annual modulation signal and the differential energy spectrum is an important test for dark matter candidates.Mirror matter-type dark matter passes this test while other dark matter…

Astrophysics · Physics 2007-05-23 R. Foot

WIMPless dark matter provides a framework in which dark matter particles with a wide range of masses naturally have the correct thermal relic density. We show that WIMPless dark matter with mass around 2-10 GeV can explain the annual…

High Energy Physics - Phenomenology · Physics 2011-06-03 Jonathan L. Feng , Jason Kumar , Louis E. Strigari

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

Inelastic dark matter, in which WIMP-nucleus scatterings occur through a transition to an excited WIMP state ~ 100 keV above the ground state, provides a compelling explanation of the DAMA annual modulation signal. We demonstrate that the…

High Energy Physics - Phenomenology · Physics 2009-05-22 Spencer Chang , Graham D. Kribs , David Tucker-Smith , Neal Weiner

After decades of experimental efforts, the DAMA/LIBRA(DL) annual modulation (AM) analysis on the $\chi N$ (WIMP Dark Matter interactions on nucleus) channel remains the only one which can be interpreted as positive signatures. This has been…

The original annual-modulation region, singled out by the DAMA/NaI experiment for direct detection of WIMPs, is extended by taking into account the uncertainties in the galactic astrophysical velocities. Also the effect due to a possible…

High Energy Physics - Phenomenology · Physics 2009-10-31 P. Belli , R. Bernabei , A. Bottino , F. Donato , N. Fornengo , D. Prosperi , S. Scopel

We perform an extensive study of the DAMA annual modulation data in the context of inelastic dark matter. We find that inelastic dark matter with mass m > 15 GeV is excluded at the 95% confidence level by the combination of DAMA spectral…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 Kai Schmidt-Hoberg , Martin Wolfgang Winkler

DAMA is an observatory for rare processes based on the development and use of various kinds of radiopure scintillators. Several low background set-ups have been realized with passing and many rare processes have been investigated. Main…

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

We examine the dark matter interpretation of the modulation signal reported by the DAMA experiment from the perspective of effective field theories displaying Galilean invariance. We consider the most general effective coupling leading to…

High Energy Physics - Phenomenology · Physics 2016-05-25 Riccardo Catena , Alejandro Ibarra , Sebastian Wild

It has been suggested that, considering channeling effect, the order of a few GeV dark matters which are elastically scattered from detector nuclei might be plausible candidates reconciling the DAMA annual modulation signal with the results…

High Energy Physics - Phenomenology · Physics 2010-01-15 Yeong Gyun Kim , Seodong Shin

We assess the tension between DAMA/LIBRA and the latest dark matter annual modulation results from the ANAIS-112 and COSINE-100 NaI experiments, under a range of hypotheses ranging from physical to general parameterisations. We find that,…

Mirror dark matter provides a simple framework for which to explain the DAMA/Libra annual modulation signal consistently with the null results of the other direct detection experiments. The simplest possibility involves ordinary matter…

Astrophysics · Physics 2010-04-21 Paolo Ciarcelluti , Robert Foot

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

In this paper, we study the recent excess of low energy events observed by the CoGeNT collaboration and the annual modulation reported by the DAMA/LIBRA collaboration, and discuss whether these signals could both be the result of the same…

High Energy Physics - Phenomenology · Physics 2010-12-24 Dan Hooper , J. I. Collar , Jeter Hall , Dan McKinsey , Chris Kelso

Three dark matter direct detection experiments (DAMA/LIBRA, CoGeNT, and CRESST-II) have each reported signals which are not consistent with known backgrounds, but resemble that predicted for a dark matter particle with a mass of roughly…

Cosmology and Nongalactic Astrophysics · Physics 2013-05-30 Chris Kelso , Dan Hooper , Matthew R. Buckley

We study the details of the DAMA/LIBRA results and compare those with the recent published DM Ice results of ICE Cube. In various recent papers, it was shown that the 40K peak on DAMA/LIBRA data leaves no room for a Dark Matter signal in…

High Energy Astrophysical Phenomena · Physics 2015-05-06 David Cline , Marcus Simpson

We show how constraints on the time integrated event rate from a given dark matter (DM) direct detection experiment can be used to set a stringent constraint on the amplitude of the annual modulation signal in another experiment. The method…

High Energy Physics - Phenomenology · Physics 2013-05-30 Juan Herrero-Garcia , Thomas Schwetz , Jure Zupan