Constraints on cosmic-ray boosted DM in CDEX-10

2020/08/17 by Zhan-Hong Lei, J. Tang, Lei, Zhan-Hong +3 · 1 citation
Medicine · Physics and Astronomy · #Dark Matter and Cosmic Phenomena #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #Particle Detector Development and Performance #Radiation Therapy and Dosimetry

paper · pdf · doi:10.48550/arxiv.2008.07116

openalex publication_date 2020/08/17 · openalex created_date 2020/08/21 · openalex updated_date 2026/07/28

Abstract

Dark matter (DM) direct detection experiments have been setting strong limits on the DM-nucleon scattering cross section at the DM mass above a few GeV, but leave large parameter space unexplored in the low mass region. DM is likely to be scattered and boosted by relativistic cosmic rays in the expanding universe if it can generate nuclear recoils in direct detection experiments to offer observable signals. Since low energy threshold detectors using Germanium have provided good constraints on ordinary halo GeV-scale DM, it is necessary to re-analyze 102.8 kg×day data in the CDEX-10 experiment assuming that DM is boosted by cosmic rays. For the DM mass range 1 keV

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