Nuclear uncertainties in the spin-dependent structure functions for direct dark matter detection

Abstract

We study the effect that uncertainties in the nuclear spin-dependent structure functions have in the determination of the dark matter (DM) parameters in a direct detection experiment. We show that different nuclear models that describe the spin-dependent structure function of specific target nuclei can lead to variations in the reconstructed values of the DM mass and scattering cross-section. We propose a parametrization of the spin structure functions that allows us to treat these uncertainties as variations of three parameters, with a central value and deviation that depend on the specific nucleus. The method is illustrated for germanium and xenon detectors with an exposure of 300 kg yr, assuming a hypothetical detection of DM and studying a series of benchmark points for the DM properties. We find that the effect of these uncertainties can be similar in amplitude to that of astrophysical uncertainties, especially in those cases where the spin-dependent contribution to the elastic scattering cross-section is sizable.

24 pages, 14 figures. References added and typos corrected

References in corpus (23)

• Trigonometric Parallaxes of Massive Star Forming Regions: VI. Galactic Structure, Fundamental Parameters and Non-Circular Motions
• First results from DAMA/LIBRA and the combined results with DAMA/NaI
• Results from a Search for Light-Mass Dark Matter with a P-type Point Contact Germanium Detector
• Constraints on Dark Matter from Colliders
• Results from a Low-Energy Analysis of the CDMS II Germanium Data
• The influence of pairing on the nuclear matrix elements of the neutrinoless double beta decays
• Constraints on Low-Mass WIMP Interactions on 19F from PICASSO
• Phase-space structure in the local dark matter distribution and its signature in direct detection experiments
• Search for dark matter and large extra dimensions in monojet events in pp collisions at sqrt(s) = 7 TeV
• Galactic masers and the Milky Way circular velocity
• New Limits on Interactions between Weakly Interacting Massive Particles and Nucleons Obtained with CsI(Tl) Crystal Detectors
• Improved Limits on Spin-Dependent WIMP-Proton Interactions from a Two Liter CF${}_3$I Bubble Chamber
• Spin-dependent WIMP scattering off nuclei
• The Dark Matter at the End of the Galaxy
• Complementarity of Dark Matter Direct Detection Targets
• Nuclear spin structure in dark matter search: The finite momentum transfer limit
• Dependence of direct detection signals on the WIMP velocity distribution
• Determining the WIMP mass using direct detection experiments
• The impact of going beyond the Maxwell distribution in direct dark matter detection rates
• Compatibility of DAMA/LIBRA dark matter detection with other searches in light of new Galactic rotation velocity measurements
• Determining the WIMP mass from a single direct detection experiment, a more detailed study
• Fundamental statistical limitations of future dark matter direct detection experiments
• Discriminating dark matter candidates using direct detection

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