Curvature of the angular spectrum of dark matter events in directional 2D detectors encodes the dark matter mass scale.
Agafonovaet al.(NEWSdm), Eur
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abstract
Direct Dark Matter searches are nowadays one of the most fervid research topics with many experimental efforts devoted to the search for nuclear recoils induced by the scattering of Weakly Interactive Massive Particles (WIMPs). Detectors able to reconstruct the direction of the nucleus recoiling against the scattering WIMP are opening a new frontier to possibly extend Dark Matter searches beyond the neutrino background. Exploiting directionality would also prove the galactic origin of Dark Matter with an unambiguous signal-to-background separation. Indeed, the angular distribution of recoiled nuclei is centered around the direction of the Cygnus constellation, while the background distribution is expected to be isotropic. Current directional experiments are based on gas TPC whose sensitivity is limited by the small achievable detector mass. In this paper we present the discovery potential of a directional experiment based on the use of a solid target made of newly developed nuclear emulsions and of optical read-out systems reaching unprecedented nanometric resolution.
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Simulations of solar CEvNS events produce annually varying ring-like 3D recoil distributions in directional detectors that lack target dependence and contrast with fixed WIMP signals.
citing papers explorer
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Extracting Dark-Matter Mass from Angular Scanning
Curvature of the angular spectrum of dark matter events in directional 2D detectors encodes the dark matter mass scale.
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Simulations of 3-Dimensional Recoil Response to Coherent Elastic Neutrino-Nucleus Scattering Events in Directional Direct Dark Matter Detectors
Simulations of solar CEvNS events produce annually varying ring-like 3D recoil distributions in directional detectors that lack target dependence and contrast with fixed WIMP signals.