4-8 August 2015
America/Detroit timezone

The PandaX Dark Matter Experiment

7 Aug 2015, 17:30
18m
Michigan (Michigan League)

Michigan

Michigan League

Cosmology and Dark Matter Experiment AstroParticle, Cosmology, Dark Matter Searches, and CMB

Speaker

Andi Tan

Description

The PandaX Collaboration has designed and constructed dual-phase xenon detectors to search for Weakly Interacting Massive Particles (WIMPs), which is a leading dark matter candidate. We have reported the first 17.4 live-day and full 80.1 live-day exposure results of the first stage of the PandaX experiment (PandaX-I) located in China JinPing Underground Laboratory (CJPL). With a fiducial mass of 54.0kg liquid xenon, no dark matter particle event was found above the expected background. Our results disfavor the interpretation of previously reported positive low-mass WIMP signals and set a stringent bound in this region. The second stage of the PandaX experiment (PandaX-II) with 500-kg sensitive target mass is under preparation in CJPL. With larger sensitive mass and lower background materials for the detector, the PandaX-II detector is expected to push the dark matter sensitivity beyond the current best limit in a wide range of WIMP masses.
Oral or Poster Presentation Oral

Primary author

Andi Tan

Co-author

xiangdong ji (university of maryland)

Presentation Materials