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Claims by the DAMA (DArk MAtter) collaboration to have detected an annually varying signal consistent with models of dark matter appear to be at variance with results from other dark-matter searches. To further understand the DAMA results,…

High Energy Physics - Phenomenology · Physics 2013-05-01 P. A. Sturrock , E. Fischbach , J. T. Gruenwal , D. Javorsek , J. H. Jenkins , R. F. Lang , R. H. Lee , J. Nistor , J. Scargle

The Cryogenic Dark Matter search experiment (CDMS) employs low-temperature Ge and Si detectors to detect WIMPs via their elastic scattering of target nuclei. The last analysis with an germanium exposure of 397.8 kg-days resulted in zero…

Instrumentation and Methods for Astrophysics · Physics 2019-08-13 T. Bruch

The Cryogenic Dark Matter Search recently announced the observation of two signal events with a 77% confidence level. Although statistically inconclusive, it is nevertheless suggestive. In this work we present a model-independent analysis…

High Energy Physics - Phenomenology · Physics 2011-09-08 Hao Zhang , Qing-Hong Cao , Chuan-Ren Chen , Chong Sheng Li

Dark matter (DM) particles captured by the Sun can produce high energy electrons outside the Sun through annihilating into meta-stable mediators. The corresponding cosmic-ray electron signals observed by the space-based experiments will be…

High Energy Physics - Phenomenology · Physics 2022-04-27 Mohammadreza Zakeri , Yu-Feng Zhou

When Cold Dark Matter (CDM) power spectrum normalized by COBE results, its amplitude at smaller scales can be parametrized by $\Gamma\sim\Omega_0h$. The expected variations of Hubble flows in two samples, the sample of 36 clusters in the…

Astrophysics · Physics 2016-01-13 Xiangdong Shi

We propose a dark matter model in which the signal in direct detection experiments arises from electromagnetic, not nuclear, energy deposition. This can provide a novel explanation for DAMA while avoiding many direct detection constraints.…

High Energy Physics - Phenomenology · Physics 2011-01-14 Brian Feldstein , Peter W. Graham , Surjeet Rajendran

The dark matter observation claimed by the DAMA/LIBRA experiment has been a long-standing puzzle within the particle physics community. NaI(Tl) crystals with radiopurity comparable to DAMA/LIBRA's are essential for adequate verification.…

Proton-philic spin-dependent inelastic Dark Matter is a Weakly Inelastic Massive Particle scenario that can explain the DAMA yearly modulation effect in compliance with the constraints from other direct detection Dark Matter searches. We…

High Energy Physics - Phenomenology · Physics 2018-01-10 Seong-Hyeong Kang , Stefano Scopel , Jong-Hyun Yoon

The DAMA experiment's long-standing claim of dark matter detection remains a key open issue in astroparticle physics. Independent verification requires NaI(Tl)-based detectors with enhanced low-energy sensitivity. Current detectors rely on…

We consider the prospects for testing the dark matter interpretation of the DAMA/LIBRA signal with the Super-Kamiokande experiment. The DAMA/LIBRA signal favors dark matter with low mass and high scattering cross section. We show that these…

High Energy Physics - Phenomenology · Physics 2010-01-08 Jonathan L. Feng , Jason Kumar , John Learned , Louis E. Strigari

We report first results from the Cryogenic Dark Matter Search (CDMS II) experiment running with its full complement of 30 cryogenic particle detectors at the Soudan Underground Laboratory. This report is based on the analysis of data…

Astrophysics · Physics 2012-08-27 CDMS Collaboration

Dark matter particles from the Galactic halo can be gravitationally trapped in the solar core or in external orbits. The enhanced density of dark matter particles either in the solar core or in external orbits can result in the annihilation…

High Energy Astrophysical Phenomena · Physics 2020-07-15 M. N. Mazziotta , F. Loparco , D. Serini , A. Cuoco , P. De La Torre Luque , F. Gargano , M. Gustafsson

The flux of Hidden Sector particles from the Galactic halo reaching an underground detector can be significantly attenuated by interactions within the Earth for sufficiently large scattering crosssections. This attenuation gives rise to a…

We study the compatibility of the observed DAMA modulation signal with inelastic scattering of dark matter (DM) off of the $0.1\%$ Thallium (Tl) dopant in DAMA. In this work we test whether there exist regions of parameter space where the…

High Energy Physics - Phenomenology · Physics 2021-11-03 Sunniva Jacobsen , Katherine Freese , Chris Kelso , Pearl Sandick , Patrick Stengel

At the AMANDA South Pole site, four new holes were drilled to depths 2050 m to 2180 m and instrumented with 86 photomultipliers (PMTs) at depths 1520-2000 m. Of these PMTs 79 are working, with 4-ns timing resolution and noise rates 300 to…

Astrophysics · Physics 2007-05-23 L. Bergstrom

The long-standing model-independent annual modulation effect measured by DAMA Collaboration is examined in the context of asymmetric mirror dark matter, assuming that dark atoms interact with target nuclei in the detector via kinetic mixing…

High Energy Physics - Experiment · Physics 2015-09-03 A. Addazi , Z. Berezhiani , R. Bernabei , P. Belli , F. Cappella , R. Cerulli , A. Incicchitti

The annual modulation observed by DAMA/NaI and DAMA/Libra may be interpreted in terms of elastic or inelastic scattering of dark matter particles. In this paper we confront these two scenarios within the framework of a very simple extension…

High Energy Physics - Phenomenology · Physics 2009-11-09 Chiara Arina , Fu-Sin Ling , Michel H. G. Tytgat

We provide a model-independent reconstruction of dark energy from $z=0$ to $ \gtrsim 10^5$. We parameterise the model by a perfect fluid with a series of physically well-motivated bins in energy-density, such that the equation of state is…

Cosmology and Nongalactic Astrophysics · Physics 2021-10-01 Adam Moss , Edmund Copeland , Steven Bamford , Thomas Clarke