Inelastic Dark Matter, Non-Standard Halos and the DAMA/LIBRA Results
arXiv:0812.1931 · doi:10.1088/1126-6708/2009/05/071
Abstract
The DAMA collaboration have claimed to detect particle dark matter (DM) via an annual modulation in their observed recoil event rate. This appears to be in strong disagreement with the null results of other experiments if interpreted in terms of elastic DM scattering, while agreement for a small region of parameter space is possible for inelastic DM (iDM) due to the altered kinematics of the collision. To date most analyses assume a simple galactic halo DM velocity distribution, the Standard Halo Model, but direct experimental support for the SHM is severely lacking and theoretical studies indicate possible significant differences. We investigate the dependence of DAMA and the other direct detection experiments on the local DM velocity distribution, utilizing the results of the Via Lactea and Dark Disc numerical simulations. We also investigate effects of varying the solar circular velocity, the DM escape velocity, and the DAMA quenching factor within experimental limits. Our data set includes the latest ZEPLIN-III results, as well as full publicly available data sets. Due to the more sensitive dependence of the inelastic cross section on the velocity distribution, we find that with Via Lactea the DAMA results can be consistent with all other experiments over an enlarged region of iDM parameter space, with higher mass particles being preferred, while Dark Disc does not lead to an improvement. A definitive test of DAMA for iDM requires heavy element detectors.
22 pages, 10 figures, PDFLaTex Additional analysis of Via Lactea simulation included
References in corpus (17)
- Observation of an anomalous positron abundance in the cosmic radiation
- First results from DAMA/LIBRA and the combined results with DAMA/NaI
- First Results from the XENON10 Dark Matter Experiment at the Gran Sasso National Laboratory
- The RAVE Survey: Constraining the Local Galactic Escape Speed
- A Search for WIMPs with the First Five-Tower Data from CDMS
- Compatibility of DAMA/LIBRA dark matter detection with other searches
- The DAMA/LIBRA apparatus
- Limits on WIMP-nucleon interactions with CsI(Tl) crystal detectors
- WIMP dark matter, Higgs exchange and DAMA
- Possible implications of the channeling effect in NaI(Tl) crystals
- First limits on WIMP nuclear recoil signals in ZEPLIN-II: a two phase xenon detector for dark matter detection
- Spin-independent elastic WIMP scattering and the DAMA annual modulation signal
- Mirror dark matter and the new DAMA/LIBRA results: A simple explanation for a beautiful experiment
- Interpreting the recent results on direct search for dark matter particles in terms of relic neutralino
- DAMA and WIMP dark matter
- Detecting the Milky Way's Dark Disk
- The Via Lactea INCITE Simulation: Galactic Dark Matter Substructure at High Resolution
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- Global interpretation of direct Dark Matter searches after CDMS-II results
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- Inferred Evidence For Dark Matter Kinematic Substructure with SDSS-Gaia
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- Halo-independent methods for inelastic dark matter scattering
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- Can CoGeNT and DAMA Modulations Be Due to Dark Matter?
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- Inelastic Dark Matter and DAMA/LIBRA: An Experimentum Crucis
- The Cosmology of Composite Inelastic Dark Matter
- iTIMP: isotriplet Technicolor Interacting Massive Particle as Dark Matter
- Anisotropic dark matter distribution functions and impact on WIMP direct detection
- PAMELA, DAMA, INTEGRAL and Signatures of Metastable Excited WIMPs
- A Bayesian view of the current status of dark matter direct searches
- Taking Halo-Independent Dark Matter Methods Out of the Bin
- Empirical Determination of Dark Matter Velocities using Metal-Poor Stars
- Neutrino-Flavoured Sneutrino Dark Matter
- Impact of Dark Matter Velocity Distributions on Capture Rates in the Sun
- Capture and Indirect Detection of Inelastic Dark Matter
- Quantifying (dis)agreement between direct detection experiments in a halo-independent way
- AMEND: A Model Explaining Neutrino masses and Dark matter testable at the LHC and MEG
- Impure Thoughts on Inelastic Dark Matter
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- Improved Constraints on Inelastic Dark Matter
- Direct Detection of Dynamical Dark Matter
- Reevaluation of spin-dependent WIMP-proton interactions as an explanation of the DAMA data
- Nearly Supersymmetric Dark Atoms
- Search for inelastic dark matter with the CDMS II experiment
- Prospects for dark matter detection with inelastic transitions of xenon
- The Metal-Poor Stellar Halo in RAVE-TGAS and its Implications for the Velocity Distribution of Dark Matter
- Parity Violation in Composite Inelastic Dark Matter Models
- A Simple Explanation for DAMA with Moderate Channeling
- Probing DAMA/LIBRA in the full parameter space of WIMP effective models of inelastic scattering
- Halo-Independent Direct Detection Analyses Without Mass Assumptions
- Exciting dark matter in the galactic center
- The Poker Face of Inelastic Dark Matter: Prospects at Upcoming Direct Detection Experiments
- Disentangling Dark Matter Dynamics with Directional Detection
- Peaked Signals from Dark Matter Velocity Structures in Direct Detection Experiments
- Magnetic Inelastic Dark Matter: Directional Signals Without a Directional Detector
- Spin-dependent sub-GeV Inelastic Dark Matter-electron scattering and Migdal effect: (I). Velocity Independent Operator
- Integrating In Dark Matter Astrophysics at Direct Detection Experiments
- TeV Scale Neutrino Mass Generation, Minimal Inelastic Dark Matter, and High Scale Leptogenesis
- Probing light WIMPs with directional detection experiments
- Model-Independent Identification of Inelastic WIMPs from Direct Dark Matter Detection Experiments
- Comments on the Minimal Vectorial Standard Model