Target dependence of the annual modulation in direct dark matter searches

Abstract

Due to Earth's revolution around the Sun, the expected scattering rate in direct dark matter searches is annually modulated. This modulation is expected to differ between experiments when given as a function of recoil energy $E_{\text{R}}$, e.g. due to the gravitational focusing effect of the Sun. A better variable to compare results among experiments employing different targets is the minimum speed $v_{\text{min}}$ a dark matter particle must have to impart a recoil energy $E_{\text{R}}$ to a target nucleus. It is widely believed that the modulation expressed as a function of $v_{\text{min}}$ is common to all experiments, irrespective of the dark matter distribution. We point out that the annual modulation as a function of $v_{\text{min}}$, and in particular the times at which the rate is maximum and minimum, could be very different depending on the detector material. This would be an indication of a scattering cross section with non-factorizable velocity and target material dependence. Observing an annual modulation with at least two different target elements would be necessary to identify this type of cross section.

arXiv comment6 pages, 4 figures. Version accepted for publication

References in corpus (47)

• First results from the LUX dark matter experiment at the Sanford Underground Research Facility
• Inelastic Dark Matter
• Constraints on Dark Matter from Colliders
• The Effective Field Theory of Dark Matter Direct Detection
• Final model independent result of DAMA/LIBRA-phase1
• Search for Low-Mass WIMPs with SuperCDMS
• Constraints on Light Majorana Dark Matter from Colliders
• Dark-Matter Electric and Magnetic Dipole Moments
• Tools for model-independent bounds in direct dark matter searches
• Millicharged Atomic Dark Matter
• Direct and indirect limits on the electro-magnetic form factors of WIMPs
• Electromagnetic properties of dark matter: dipole moments and charge form factor
• Magnetic Inelastic Dark Matter
• Matrix element analyses of dark matter scattering and annihilation
• Anapole Dark Matter
• How Dark Are Majorana WIMPs? Signals from MiDM and Rayleigh Dark Matter
• Exothermic Dark Matter
• Dipolar Dark Matter
• The unbearable lightness of being: CDMS versus XENON
• Dark Moments and the DAMA-CoGeNT Puzzle
• Collider Constraints on Dipole-Interacting Dark Matter
• Constraining the interaction strength between dark matter and visible matter: I. fermionic dark matter
• Light Magnetic Dark Matter in Direct Detection Searches
• Effect of Gravitational Focusing on Annual Modulation in Dark-Matter Direct-Detection Experiments
• Global fits of the dark matter-nucleon effective interactions
• Generalized Halo Independent Comparison of Direct Dark Matter Detection Data
• A Model Independent Approach to Inelastic Dark Matter Scattering
• On the Effect of Nuclear Response Functions in Dark Matter Direct Detection
• Energy Dependence of Direct Detection Cross Section for Asymmetric Mirror Dark Matter
• Direct detection of Light Anapole and Magnetic Dipole DM
• Three Exceptions for Thermal Dark Matter with Enhanced Annihilation to Gamma Gamma
• Dark-Matter Harmonics Beyond Annual Modulation
• Light Dark Matter Anomalies After LUX
• Phase-space distribution of unbound dark matter near the Sun
• Prospects for direct detection of dark matter in an effective theory approach
• Composite magnetic dark matter and the 130 GeV line
• Shedding Light on Dark Matter: A Faraday Rotation Experiment to Limit a Dark Magnetic Moment
• Dipole Moment Dark Matter at the LHC
• Anapole Dark Matter at the LHC
• Constraint on Light Dipole Dark Matter from Helioseismology
• Constraining WIMP magnetic moment from CDMS II experiment
• Minimal Dirac Fermionic Dark Matter with Nonzero Magnetic Dipole Moment
• Magnetic Fluffy Dark Matter
• Direct detection and solar capture of spin-dependent dark matter
• Direct Detection of Light "Ge-phobic" Exothermic Dark Matter
• Dipole-interacting Fermionic Dark Matter in positron, antiproton, and gamma-ray channels
• When CoGeNT met PAMELA

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• Dark Matter Model or Mass, but Not Both: Assessing Near-Future Direct Searches with Benchmark-free Forecasting
• Prospects for Distinguishing Dark Matter Models Using Annual Modulation
• Freezing In with Lepton Flavored Fermions
• Exploring the Origin of Supermassive Black Holes with Coherent Neutrino Scattering
• Prospects for Dark Matter signal discovery and model selection via timing information in a low-threshold experiment