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We present comparisons of direct dark matter (DM) detection data for light WIMPs with exothermic scattering with nuclei (exoDM), both assuming the Standard Halo Model (SHM) and in a halo model - independent manner. Exothermic interactions…

High Energy Physics - Phenomenology · Physics 2015-06-19 Graciela B. Gelmini , Andreea Georgescu , Ji-Haeng Huh

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 reexamine the current direct dark matter data including the recent CDMSlite and LUX data, assuming that the dark matter consists of light WIMPs, with mass close to 10 GeV/$c^2$ with spin-independent and isospin-conserving or…

High Energy Physics - Phenomenology · Physics 2015-06-17 Eugenio Del Nobile , Graciela B. Gelmini , Paolo Gondolo , Ji-Haeng Huh

We consider direct detection prospects for a class of simplified models of fermionic dark matter (DM) coupled to left and right-handed Standard Model fermions via two charged scalar mediators with arbitrary mixing angle $\alpha$. DM…

High Energy Physics - Phenomenology · Physics 2016-10-07 Pearl Sandick , Kuver Sinha , Fei Teng

We compare the sensitivity of WIMP detection via direct separation of possible signal vs. background to WIMP detection via detection of an annual modulation, in which signal and background cannot be separated on an event-by-event basis. In…

Astrophysics · Physics 2009-11-07 Craig J. Copi , Lawrence M. Krauss

We examine the consistency of light dark matter (DM) elastic scattering in CoGeNT, DAMA, and CDMS-Silicon in light of constraints from XENON, CDMS, LUX, PICASSO and COUPP. We consider a variety of operators that have been employed to…

High Energy Physics - Phenomenology · Physics 2014-01-29 Moira I Gresham , Kathryn M. Zurek

We study the dark matter (DM) direct detection for the models with the effects of the isospin-violating couplings, exothermic scatterings, and/or the lightness of the mediator, proposed to relax the tension between the CDMS-Si signals and…

High Energy Physics - Phenomenology · Physics 2016-08-08 Chao-Qiang Geng , Da Huang , Chun-Hao Lee , Qing Wang

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 use the results of direct and indirect searches for weakly interacting massive particles (WIMPs) to obtain bounds on various electro-magnetic form factors of WIMPs. The limits on the recoil signal in underground dark matter detection…

High Energy Physics - Phenomenology · Physics 2009-10-31 Maxim Pospelov , Tonnis ter Veldhuis

Dark matter (DM) direct detections are investigated for models with the following properties: isospin-violating couplings, exothermic scatterings, and/or a light mediator, with the aim to reduce the tension between the CDMS-Si positive…

High Energy Physics - Phenomenology · Physics 2017-10-06 Chao-Qiang Geng , Da Huang , Chun-Hao Lee

Dark matter candidates with electromagnetic dipole moments can arise as dark baryons in gauge-mediated or technicolor models. These dark matter candidates interact with nuclei in direct detection experiments mainly through magnetic and/or…

High Energy Physics - Phenomenology · Physics 2010-08-04 Tom Banks , Jean-François Fortin , Scott Thomas

We briefly review the halo-independent formalism, that allows to compare data from different direct dark matter detection experiments without making assumptions on the properties of the dark matter halo. We apply this method to…

High Energy Physics - Phenomenology · Physics 2014-05-23 Eugenio Del Nobile , Graciela B. Gelmini , Paolo Gondolo , Ji-Haeng Huh

The Cryogenic Dark Matter Search (CDMS) employs Ge and Si detectors to search for WIMPs via their elastic-scattering interactions with nuclei while discriminating against interactions of background particles. CDMS data give limits on the…

Astrophysics · Physics 2012-08-27 CDMS Collaboration

The direct limit of electric dipole moment (EDM) and direct search for dark matter by EDM interaction are considered as including the electromagnetic nuclear form factor, in case that the dark matter candidate is a Dirac particle. The WIMP…

High Energy Physics - Phenomenology · Physics 2011-08-09 Jae Ho Heo

To illustrate the complementarity of the linear collider and astrophysics bounds on the light (MeV-scale mass) dark matter (DM), we study the constraints on the magnetic dipole DM from the DM-electron interactions at the proposed…

High Energy Physics - Phenomenology · Physics 2014-05-28 Kenji Kadota , Joseph Silk

We investigate the effects of a magnetic dipole moment of asymmetric dark matter (DM) in the evolution of the Sun. The dipole interaction can lead to a sizable DM scattering cross section even for light DM, and the asymmetric dark matter…

Solar and Stellar Astrophysics · Physics 2014-02-05 Ilídio Lopes , Kenji Kadota , Joseph Silk

We extend the halo-independent method to compare direct dark matter detection data, so far used only for spin-independent WIMP-nucleon interactions, to any type of interaction. As an example we apply the method to magnetic moment…

High Energy Physics - Phenomenology · Physics 2015-06-16 Eugenio Del Nobile , Graciela Gelmini , Paolo Gondolo , Ji-Haeng Huh

Three dark matter direct detection experiments, DAMA, COGENT and CRESST, have reported a possible signal of WIMP interaction corresponding to very light particles, close to the edge of the XENON 100 and CDMS sensitivity. Imposing the latest…

High Energy Physics - Phenomenology · Physics 2012-11-13 F. Mahmoudi , A. Arbey , M. Battaglia

Direct searches for dark matter (DM) by the LUX and PandaX-II Collaborations employing xenon-based detectors have recently come up with the most stringent limits to date on the spin-independent elastic scattering of DM off nucleons. For…

High Energy Physics - Phenomenology · Physics 2016-12-20 Xiao-Gang He , Jusak Tandean
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