2015/05/31 by PandaX Collaboration, Xiang Xiao, Xun Chen +53 · 62 citations
Physics and Astronomy · #Astrophysics #Cosmology #Dark Matter and Cosmic Phenomena #Dark energy #Dark matter #Detector #Low Mass #Nuclear physics #Optics #Particle Detector Development and Performance #Particle physics #Particle physics theoretical and experimental studies #Physics #Scalar field dark matter #Stars #WIMP #Weakly interacting massive particles #Xenon #astro-ph.IM #hep-ex #physics.ins-det
paper · pdf · doi:10.1103/physrevd.92.052004
published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 92(5) (American Physical Society) · v3 as accepted by PRD. Minor update in the text in response to referee comments. Separating Fig. 11(a) and (b) into Fig. 11 and Fig. 12. Legend tweak in Fig. 9(b) and 9(c) as suggested by referee, as well as a missing legend for CRESST-II legend in Fig. 12 (now Fig. 13). Same version as submitted to PRD
arxiv created 2015/08/20 · openalex publication_date 2015/09/15 · arxiv updated 2015/09/23 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We report the results of a weakly interacting massive particle (WIMP) dark matter search using the full 80.1 live-day exposure of the first stage of the PandaX experiment (PandaX-I) located in the China Jin-Ping Underground Laboratory. The PandaX-I detector has been optimized for detecting low-mass WIMPs, achieving a photon detection efficiency of 9.6%. With a fiducial liquid xenon target mass of 54.0 kg, no significant excess events were found above the expected background. A profile likelihood ratio analysis confirms our earlier finding that the PandaX-I data disfavor all positive low-mass WIMP signals reported in the literature under standard assumptions. A stringent bound on a low-mass WIMP is set at a WIMP mass below 10 GeV/c2, demonstrating that liquid xenon detectors can be competitive for low-mass WIMP searches.