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The long-standing model-independent annual modulation effect measured by the DAMA Collaboration, which fulfills all the requirements of a dark matter annual modulation signature, and the new result by the CoGeNT experiment that shows a…

High Energy Physics - Phenomenology · Physics 2012-01-04 P. Belli , R. Bernabei , A. Bottino , F. Cappella , R. Cerulli , N. Fornengo , S. Scopel

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

The DAMA experiment using ultra low background NaI(Tl) crystal scintillators has measured an annual modulation effect in the keV region which satisfies all the peculiarities of an effect induced by Dark Matter particles. In this paper we…

High Energy Physics - Experiment · Physics 2018-12-21 R. Cerulli , P. Villar , F. Cappella , R. Bernabei , P. Belli , A. Incicchitti , A. Addazi , Z. Berezhiani

The channeling of the ion recoiling after a collision with a WIMP in direct dark matter crystalline detectors produces a larger scintillation or ionization signal than otherwise expected. Channeling is a directional effect which depends on…

Cosmology and Nongalactic Astrophysics · Physics 2015-03-17 Nassim Bozorgnia , Graciela B. Gelmini , Paolo Gondolo

At present there is an effort to reconcile the results of the DAMA experiment with those from other Dark Matter experiments such as CoGeNT, CRESST, CDMS, and all LXe experiments. The author suggests a new model describing the Dark Matter…

Astrophysics of Galaxies · Physics 2016-11-26 J. Va'vra

The Korea Invisible Mass Search (KIMS) collaboration has developed low-background NaI(Tl) crystals that are suitable for the direct detection of WIMP dark matter. With experience built on the KIMS-CsI programs, the KIMS-NaI experiment will…

We present here the principles of detection of Weakly Interacting Massive Particles, which could represent a large contribution to Dark Matter. A status of the experimental situation is given both for indirect and direct detection. In…

Astrophysics · Physics 2019-08-14 O. Martineau

Recent results of the DAMA/NaI experiment for WIMP direct detection point to a possible annual modulation effect in the detection rate. We show that these results, when interpreted in terms of a relic neutralino, are compatible with…

High Energy Physics - Phenomenology · Physics 2009-10-31 A. Bottino , F. Donato , N. Fornengo , S. Scopel

KIMS-NaI is a direct detection experiment searching for Weakly Interacting Massive Particles (WIMP) via their scattering off of nuclei in a NaI(Tl) crystal. The KIMS-NaI collaboration has carried out tests of six crystals in the Yangyang…

Instrumentation and Detectors · Physics 2015-11-03 Kyungwon Kim

Presented here are results of simulations of neutron background performed for a time projection chamber acting as a particle dark matter detector in an underground laboratory. The investigated background includes neutrons from rock and…

The inelastic dark matter scenario was proposed to reconcile the DAMA annual modulation with null results from other experiments. In this scenario, WIMPs scatter into an excited state, split from the ground state by an energy delta…

High Energy Physics - Phenomenology · Physics 2011-02-01 Spencer Chang , Rafael F. Lang , Neal Weiner

Experimental observations and theoretical arguments point out that Dark Matter (DM) particles are one of the most prominent component of the Universe. This motivated the pioneer DAMA experiment to investigate the presence of these particles…

High Energy Physics - Phenomenology · Physics 2021-10-12 R. Bernabei , P. Belli , V. Caracciolo , R. Cerulli , V. Merlo , F. Cappella , A. d'Angelo , A. Incicchitti , C. J. Dai , X. H. Ma , X. D. Sheng , F. Montecchia , Z. P. Ye

The most recent results from direct searches for dark matter particles in the galactic halo are examined in terms of an effective Minimal Supersymmetric extension of the Standard Model at the electroweak scale without gaugino masses…

High Energy Physics - Phenomenology · Physics 2008-11-26 A. Bottino , F. Donato , N. Fornengo , S. Scopel

The DAMA/NaI set-up of the DAMA experiment has been operative during seven annual cycles and has investigated several rare processes. In particular, it has been realised in order to investigate the model independent annual modulation…

The annually modulating $\sim$ keV scintillations observed in the DAMA/NaI and DAMA/Libra experiments might be due to dark matter - electron scattering. Such an explanation is now favoured given the stringent constraints on nuclear recoil…

High Energy Physics - Phenomenology · Physics 2015-02-02 R. Foot

The interaction rate of hypothesised dark matter particles in an Earth-bound detector is expected to undergo an annual modulation due to the planet's orbital motion. The DAMA experiment has observed such a modulation with high significance…

High Energy Physics - Experiment · Physics 2020-04-24 Irene Bolognino

We reexamine the interpretation of the annual modulation signal observed by the DAMA experiment as due to WIMPs with a spin-dependent coupling mostly to protons. We consider both axial-vector and pseudo-scalar couplings, and elastic as well…

High Energy Physics - Phenomenology · Physics 2015-09-16 Eugenio Del Nobile , Graciela B. Gelmini , Andreea Georgescu , Ji-Haeng Huh

Direct detection dark matter experiments looking for WIMP-nucleus elastic scattering will soon be sensitive to an irreducible background from neutrinos which will drastically affect their discovery potential. Here we explore how the…

High Energy Physics - Phenomenology · Physics 2015-06-22 F. Ruppin , J. Billard , E. Figueroa-Feliciano , L. Strigari

Using improved Ge and Si detectors, better neutron shielding, and increased counting time, the Cryogenic Dark Matter Search (CDMS) experiment has obtained stricter limits on the cross section of weakly interacting massive particles (WIMPs)…

High Energy Physics - Experiment · Physics 2012-08-27 CDMS Collaboration