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In the paper expressions are obtained for the event rates expected in experiments aimed at direct detection of dark matter (DM) particles. These expressions allow one to estimate the rates taking into account simultaneously elastic…

高能物理 - 唯象学 · 物理学 2023-05-04 Vadim A. Bednyakov

We look at our since long studied model for dark matter as being pearls of a speculated new vacuum containing highly compressed ordinary matter, with so much ordinary in it that the content of ordinary matter in the dark matter pearls…

高能物理 - 唯象学 · 物理学 2026-02-10 Colin D. Froggatt , Holger Bech Nielsen

We present a dynamical alternative to inelastic dark matter as a way of reconciling the modulating signal seen at DAMA with null results at other direct detection experiments. The essential ingredient is a new form factor which introduces…

高能物理 - 唯象学 · 物理学 2010-01-21 Brian Feldstein , A. Liam Fitzpatrick , Emanuel Katz

A weakly interacting massive particle (WIMP) weighing only a few GeV has been invoked as an explanation for the signal from the DAMA/LIBRA experiment. We show that the data from DAMA/LIBRA are now powerful enough to strongly constrain the…

高能物理 - 唯象学 · 物理学 2009-06-30 Spencer Chang , Aaron Pierce , Neal Weiner

We seek to explain both the seeming observation of dark matter by the seasonal variation of the DAMA-LIBRA data and the observation of "electron recoil" events at Xenon1T in which the liquid Xe scintillator was excited by electrons - in…

高能物理 - 唯象学 · 物理学 2022-03-11 C. D. Froggatt , H. B. Nielsen

We show that the annual modulation signal observed by DAMA can be reconciled with all other negative results from dark matter searches with a conventional halo model for particle masses around 5 to 9 GeV. We also show which particular dark…

高能物理 - 唯象学 · 物理学 2009-11-11 Graciela B. Gelmini

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…

Arina et al. have proposed the Dirac fermionic dark matter with pseudoscalar-mediated interactions to explain the Galactic Center excess, correct relic density and DAMA signal. They have assumed that contact interactions remain roughly…

高能物理 - 唯象学 · 物理学 2016-05-20 Kwei-Chou Yang

It is usually assumed that dark matter direct detection is sensitive to a large fraction of the dark matter (DM) velocity distribution. We propose an alternative form of dark matter-nucleus scattering which only probes a narrow range of DM…

高能物理 - 唯象学 · 物理学 2009-11-13 Yang Bai , Patrick J. Fox

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…

高能物理 - 唯象学 · 物理学 2015-02-02 R. Foot

The channeling of the ion recoiling after a collision with a WIMP changes the ionization signal in direct detection experiments, producing a larger signal than otherwise expected. We give estimates of the fraction of channeled recoiling…

宇宙学与河外天体物理 · 物理学 2010-12-09 Nassim Bozorgnia , Graciela B. Gelmini , Paolo Gondolo

We consider the hypothesis that Dark Matter (DM) has tree-level interactions only with leptons. Such a framework, where DM recoils against electrons bound in atoms, has been proposed as an explanation for the annually modulated…

高能物理 - 唯象学 · 物理学 2010-01-15 Joachim Kopp , Viviana Niro , Thomas Schwetz , Jure Zupan

The DAMA/NaI and DAMA/LIBRA annual modulation data, which may be interpreted as a signal for the existence of weakly interacting dark matter (WIMPs) in our galactic halo, are examined in light of null results from other experiments. We use…

天体物理学 · 物理学 2014-11-18 Christopher Savage , Graciela Gelmini , Paolo Gondolo , Katherine Freese

Models of dark matter with ~ GeV scale force mediators provide attractive explanations of many high energy anomalies, including PAMELA, ATIC, and the WMAP haze. At the same time, by exploiting the ~ MeV scale excited states that are…

高能物理 - 唯象学 · 物理学 2009-10-02 Douglas P. Finkbeiner , Tracy Slatyer , Neal Weiner , Itay Yavin

A claim for evidence of dark matter interactions in the DAMA experiment has been recently reinforced. We employ a new type of germanium detector to conclusively rule out a standard isothermal galactic halo of Weakly Interacting Massive…

Dark matter which interacts through a magnetic or electric dipole moment is an interesting possibility which may help to resolve the discrepancy between the DAMA annual modulation signal and the null results of other searches. In this…

高能物理 - 唯象学 · 物理学 2013-05-30 Jean-François Fortin , Tim M. P. Tait

Direct searches for dark matter lead to serious problems for simple models with stable neutral Weakly Interacting Massive Particles (WIMPs) as candidates for dark matter. A possibility is discussed that new stable quarks and charged leptons…

宇宙学与河外天体物理 · 物理学 2017-08-23 Maxim Yu. Khlopov

We consider dark matter (DM) with very weak couplings to the standard model (SM), such that its self-annihilation cross section is much smaller than the canonical one, $\langle\sigma v\rangle_{\chi\chi} \ll…

高能物理 - 唯象学 · 物理学 2019-04-18 Mathias Garny , Jan Heisig , Marco Hufnagel , Benedikt Lülf , Stefan Vogl

We explore the dark matter interpretation of the anomalies claimed by the DAMA and CoGeNT experiments, in conjunction with the various null direct-detection experiments. An independent analysis of the CoGeNT data is employed and several…

高能物理 - 唯象学 · 物理学 2015-05-28 Marco Farina , Duccio Pappadopulo , Alessandro Strumia , Tomer Volansky

Direct searches for dark matter lead to serious problems for simple models with stable neutral Weakly Interacting Massive Particles (WIMPs) as candidates for dark matter. A possibility is discussed that new stable quarks and charged leptons…

宇宙学与河外天体物理 · 物理学 2011-12-06 Maxim Yu. Khlopov