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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…

宇宙学与河外天体物理 · 物理学 2011-02-23 Aravind Natarajan

We assess the tension between DAMA/LIBRA and the latest dark matter annual modulation results from the ANAIS-112 and COSINE-100 NaI experiments, under a range of hypotheses ranging from physical to general parameterisations. We find that,…

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…

高能物理 - 唯象学 · 物理学 2021-11-03 Sunniva Jacobsen , Katherine Freese , Chris Kelso , Pearl Sandick , Patrick Stengel

A light scalar WIMP is studied in view of the recent results of the DAMA collaboration. In a scenario where both the WIMP's annihilation and its elastic scattering on nuclei occur dominantly through Higgs exchange, a one-to-one relation…

高能物理 - 唯象学 · 物理学 2009-05-07 Sarah Andreas

We discuss halo-independent constraints on the Inelastic Dark Matter (IDM) scenario, in which a Weakly Interaction Massive Particle (WIMP) state $\chi$ with mass $m_\chi$ interacts with nuclear targets by upscattering to a heavier state…

高能物理 - 唯象学 · 物理学 2023-11-23 Sunghyun Kang , Arpan Kar , Stefano Scopel

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 community's reliance on simplified descriptions of WIMP-nucleus interactions reflects the absence of analysis tools that integrate general theories of dark matter with standard treatments of nuclear response functions. To bridge this…

高能物理 - 唯象学 · 物理学 2014-07-02 Nikhil Anand , A. Liam Fitzpatrick , W. C. Haxton

The results obtained with the total exposure of 1.04 ton x yr collected by DAMA/LIBRA-phase1 deep underground at the Gran Sasso National Laboratory (LNGS) of the I.N.F.N. during 7 annual cycles (i.e. adding a further 0.17 ton x yr exposure)…

We characterize spinning dust emission in the warm ionized medium by comparing templates of Galactic dust and Halpha with the 5-year maps from the Wilkinson Microwave Anisotropy Probe. The Halpha-correlated microwave emission deviates from…

天体物理学 · 物理学 2009-07-22 Gregory Dobler , Bruce T. Draine , Douglas P. Finkbeiner

In this paper, we study the recent excess of low energy events observed by the CoGeNT collaboration, and discuss the possibility that these events originate from the elastic scattering of a light (m_DM ~ 5-10 GeV) dark matter particle. We…

高能物理 - 唯象学 · 物理学 2014-11-20 A. Liam Fitzpatrick , Dan Hooper , Kathryn M. Zurek

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…

高能物理 - 实验 · 物理学 2015-09-03 A. Addazi , Z. Berezhiani , R. Bernabei , P. Belli , F. Cappella , R. Cerulli , A. Incicchitti

We present a model independent analysis of inelastic dark matter transitions at direct detection experiments by modifying the elastic methodology of Fitzpatrick, et al. By analyzing the kinematics of inelastic transitions, we find the…

高能物理 - 唯象学 · 物理学 2014-11-26 G. Barello , Spencer Chang , Christopher A. Newby

The relative sensitivity of different direct detection experiments depends sensitively on the astrophysical distribution and particle physics nature of dark matter, prohibiting a model-independent comparison. The situation changes…

高能物理 - 唯象学 · 物理学 2018-06-13 Felix Kahlhoefer , Florian Reindl , Karoline Schäffner , Kai Schmidt-Hoberg , Sebastian Wild

We present limits on spin-independent inelastic weakly interacting massive particles (WIMP)-nucleus scattering using the 737.1 kg$\cdot$day dataset from the CDEX-1B experiment. Expected nuclear recoil spectra for various inelastic WIMP…

The DAMA/LIBRA experiment searches for evidence of Dark Matter scattering off nuclei. Data from DAMA show 9.2 sigma evidence for an annual modulation, consistent with Dark Matter having a cross section around 2x10^(-40) cm^2. However this…

高能物理 - 唯象学 · 物理学 2014-08-22 Jonathan H. Davis

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…

高能物理 - 唯象学 · 物理学 2010-12-24 Dan Hooper , J. I. Collar , Jeter Hall , Dan McKinsey , Chris Kelso

The first model independent results obtained by the DAMA/LIBRA-phase2 experiment are presented. The data have been collected over 6 annual cycles corresponding to a total exposure of 1.13 ton $\times$ yr, deep underground at the Gran Sasso…

The CoGeNT and CRESST WIMP direct detection experiments have recently observed excesses of nuclear recoil events, while the DAMA/LIBRA experiment has a long standing annual modulation signal. It has been suggested that these excesses may be…

宇宙学与河外天体物理 · 物理学 2013-05-30 Ben Morgan , Anne M. Green

We examine the effect of some uncertainties in the input astrophysical parameters on direct detection searches for WIMPs in the Galactic halo. We concentrate on the possible WIMP annual modulation signal recently reported by the DAMA…

高能物理 - 唯象学 · 物理学 2008-11-26 Michal Brhlik , Leszek Roszkowski