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Related papers: A Simple Explanation for DAMA with Moderate Channe…

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Recent results from the CoGeNT collaboration (as well as the annual modulation reported by DAMA/LIBRA) point toward dark matter with a light (5-10 GeV) mass and a relatively large elastic scattering cross section with nucleons (\sigma ~…

High Energy Physics - Phenomenology · Physics 2011-08-09 Matthew R. Buckley , Dan Hooper , Tim M. P. Tait

If dark matter (DM) has non-zero direct or transition, electric or magnetic dipole moment then it can scatter nucleons electromagnetically in direct detection experiments. Using the results from experiments like XENON, CDMS, DAMA and COGENT…

High Energy Physics - Phenomenology · Physics 2009-09-02 Eduard Masso , Subhendra Mohanty , Soumya Rao

The annual modulation in the rate of WIMP recoils observed by the DAMA collaboration at high significance is often analyzed in the context of an isothermal Maxwell-Boltzmann velocity distribution. While this is the simplest model, there is…

Cosmology and Nongalactic Astrophysics · Physics 2011-02-23 Aravind Natarajan

The differential event rate for direct detection of dark matter, both the time averaged and the modulated one due to the motion of the Earth, are discussed. The calculations focus on relatively light cold dark matter candidates (WIMP) and…

High Energy Physics - Phenomenology · Physics 2015-05-30 J. D. Vergados

The DAMA experiment clearly observes a small oscillatory signal. The observed yearly modulation is in phase with the Earth's motion around the Sun. Recent reference [Vavra, 2014] suggested that the DAMA experiment observes a WIMP of much…

Instrumentation and Methods for Astrophysics · Physics 2014-01-28 J. Va'vra

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

Recently the CDMS collaboration has reported an excess of events in the signal region of a search for dark matter scattering with Silicon nuclei. Three events on an expected background of 0.4 have a significance of about 2 sigma, and it is…

High Energy Physics - Phenomenology · Physics 2014-07-30 Randel C. Cotta , Arvind Rajaraman , Tim M. P. Tait , Alexander M. Wijangco

Recently, the CoGeNT experiment has reported events in excess of expected background. We analyze dark matter scenarios which can potentially explain this signal. Under the standard case of spin independent scattering with equal couplings to…

High Energy Physics - Phenomenology · Physics 2014-11-20 Spencer Chang , Jia Liu , Aaron Pierce , Neal Weiner , Itay Yavin

Dark Matter annihilation (DMA) may yield an excess of gamma rays and antimatter particles, like antiprotons and positrons, above the background from cosmic ray interactions. Several signatures, ranging from the positron excess, as observed…

Astrophysics · Physics 2009-11-13 W. de Boer

Exotic dark matter together with dark energy or cosmological constant seem to dominate in the Universe. An even higher density of such matter seems to be gravitationally trapped in our Galaxy. The nature of dark matter can be unveiled only,…

Nuclear Theory · Physics 2009-09-29 J. D. Vergados

We re-analyse the implications of the DAMA/NaI experiment for mirror matter-type dark matter, taking into account information from the energy dependence of the DAMA annual modulation signal. This is combined with the null results from the…

Astrophysics · Physics 2008-11-26 R. Foot

We study a Dirac Dark Matter particle interacting with ordinary matter via the exchange of a light pseudo-scalar, and analyze its impact on both direct and indirect detection experiments. We show that this candidate can accommodate the…

High Energy Physics - Phenomenology · Physics 2015-01-14 Chiara Arina , Eugenio Del Nobile , Paolo Panci

Dark Matter (DM) is generally assumed to be massive, cold and collisionless from the structure formation point of view. A more correct statement however is that DM indeed experiences collisional damping, but on a scale which is supposed to…

Astrophysics · Physics 2007-05-23 C. Boehm , H. Mathis , J. Devriendt , J. Silk

We consider a model in which dark matter consists of a large self-interacting component (SIDM particles) and a small component with strong interactions with baryons (SIMPs). We show that the DAMA annual modulation signal can be caused by…

Astrophysics · Physics 2007-05-23 Saibal Mitra

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

Directional detection can provide unambiguous observation of Dark Matter interactions even in presence of insidious backgrounds. The DM-TPC collaboration is developing a detector with the goal of measuring the direction and sense of nuclear…

Since the expected rates for neutralino-nucleus scattering are expected to be small, one should exploit all the characteristic signatures of this reaction. Such are: (i) In the standard recoil measurements the modulation of the event rate…

High Energy Physics - Phenomenology · Physics 2007-05-23 J. D. Vergados

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

The channeling effect in crystals refers to the orientation dependence of charged ion penetration in crystals. In direct dark matter crystalline detectors, a channeled ion recoiling after a collision with a WIMP gives all its energy to…

Instrumentation and Methods for Astrophysics · Physics 2011-09-06 Nassim Bozorgnia

Possible hints for WIMP dark matter with mass around 10 GeV coming from the DAMA, CoGeNT, and maybe also CRESST experiments are presented, and confronted with constraints from CDMS and XENON data. Focusing on spin-independent (SI)…

High Energy Physics - Phenomenology · Physics 2010-11-29 Thomas Schwetz
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