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The CoGeNT collaboration has reported evidence of an annual modulation in its first fifteen months of data. Here we compare the amplitude and phase of this signal to the modulation observed by the DAMA collaboration, assuming that both…

高能物理 - 唯象学 · 物理学 2011-09-14 Christopher McCabe

Dark matter in spiral galaxies like the Milky Way may take the form of a dark plasma. Hidden sector dark matter charged under an unbroken $U(1)'$ gauge interaction provides a simple and well defined particle physics model realising this…

星系天体物理 · 物理学 2016-01-27 Jackson D. Clarke , Robert Foot

Dark matter in the form of particles from a hidden mirror sector has recently been proposed as an explanation for the DAMA annual modulation signal. Here one assumes that there exists a small mixing between photons and mirror photons. We…

天体物理学 · 物理学 2007-05-23 Saibal Mitra

The DAMA annual modulation signature, interpreted as evidence for a spin-independent WIMP coupling, seems in conflict with null results from CDMS. However, in models of ``inelastic dark matter'', the experiments are compatible. Inelastic…

天体物理学 · 物理学 2008-11-26 David R. Smith , Neal Weiner

Mirror dark matter offers a framework to explain the existing dark matter direct detection experiments, including the impressive DAMA annual modulation signal. Here we examine the implications of mirror dark matter for experiments like…

高能物理 - 唯象学 · 物理学 2010-11-16 R. Foot

Boosted dark particles of astrophysical origin can lead to nonstandard nuclear or electron recoil signals in direct detection experiments. %It has been shown that this interpretation successfully explains the excess of keV electron recoil…

高能物理 - 唯象学 · 物理学 2023-07-14 Yifan Chen , Bartosz Fornal , Pearl Sandick , Jing Shu , Xiao Xue , Yue Zhao , Junchao Zong

We derive constraints on the annual modulation signal in Dark Matter (DM) direct detection experiments in terms of the unmodulated event rate. A general bound independent of the details of DM distribution follows from the assumption that…

高能物理 - 唯象学 · 物理学 2015-06-03 Juan Herrero-Garcia , Thomas Schwetz , Jure Zupan

It has been suggested that, considering channeling effect, the order of a few GeV dark matters which are elastically scattered from detector nuclei might be plausible candidates reconciling the DAMA annual modulation signal with the results…

高能物理 - 唯象学 · 物理学 2010-01-15 Yeong Gyun Kim , Seodong Shin

In 2020 the XENON1T experiment observed an excess of events with an electron recoil energy $E_R$ in the range of $2\,$--$\,3\,$keV. Such an excess can arise from a variety of sources such as solar axions or a neutrino magnetic moment, but…

高能物理 - 唯象学 · 物理学 2022-07-19 Amin Aboubrahim , Lutz Althueser , Michael Klasen , Pran Nath , Christian Weinheimer

We propose a novel mechanism for dark matter to explain the observed annual modulation signal at DAMA/LIBRA which avoids existing constraints from every other dark matter direct detection experiment including CRESST, CDMS, and XENON10. The…

高能物理 - 唯象学 · 物理学 2010-10-07 Peter W. Graham , Roni Harnik , Surjeet Rajendran , Prashant Saraswat

Among the direct search experiments for weakly interacting massive particle (WIMP) dark matter, the DAMA experiment observed an annual modulation signal interpreted as WIMP interactions with a significance of 9.2$\sigma$. Recently, Jonathan…

高能物理 - 实验 · 物理学 2015-08-26 Eunju Jeon , Yeongduk Kim

The magnetic inelastic dark matter (MiDM) model, in which dark matter inelastically scatters off nuclei through a magnetic dipole interaction, has previously been shown to reconcile the DAMA/LIBRA annual modulation signal with null results…

宇宙学与河外天体物理 · 物理学 2015-03-17 Tongyan Lin , Douglas P. Finkbeiner

Halo dark matter (DM) particles could lose energy due to the scattering off nuclei within the Earth before reaching the underground detectors of DM direct detection experiments. This Earth shielding effect can result in diurnal modulation…

高能物理 - 唯象学 · 物理学 2023-11-02 Mai Qiao , Chen Xia , Yu-Feng Zhou

Direct detection experiments, which are designed to detect the scattering of dark matter off nuclei in detectors, are a critical component in the search for the Universe's missing matter. The count rate in these experiments should…

宇宙学与河外天体物理 · 物理学 2017-01-04 Katherine Freese , Mariangela Lisanti , Christopher Savage

In the presence of OH impurities in the DAMA crystals, GeV-scale WIMPs elastically scattering off of hydrogen nuclei with a spin independent cross section of $\sim 10^{-33}\ {\rm cm}^2$ might explain the annual modulation observed by the…

高能物理 - 唯象学 · 物理学 2015-06-18 Stefano Profumo , Farinaldo S. Queiroz

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 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…

We present two examples of velocity distributions for light dark matter particles that reconcile the annual modulation signal observed by DAMA with all other negative results from dark matter searches. They are: (1) a conventional…

高能物理 - 唯象学 · 物理学 2009-11-11 Paolo Gondolo , Graciela Gelmini

Data collected during three years with a germanium spectrometer at the Sierra Grande underground laboratory have been analyzed for distinctive features of annual modulation of the signal induced by WIMP dark matter candidates. The main…

In this article, I summarize and discuss the body of evidence which has accumulated in favor of dark matter in the form of approximately 10 GeV particles. This evidence includes the spectrum and angular distribution of gamma rays from the…

宇宙学与河外天体物理 · 物理学 2012-01-09 Dan Hooper