2016/06/21 by Andi Tan, Xiang Xiao, Xiangyi Cui +57 · 4 citations
Physics and Astronomy · #Dark Matter and Cosmic Phenomena #Particle physics theoretical and experimental studies #Particle Detector Development and Performance
paper · doi:10.1103/physrevd.93.122009
We present the results of a search for weakly interacting massive particles (WIMPs) from the commissioning run of the PandaX-II experiment located at the China Jinping Underground Laboratory. A WIMP search data set with an exposure of 306\ifmmode×\else\texttimes\fi19.1 kg\text\ensuremath-day was taken, while its dominant 85Kr background was used as the electron recoil calibration. No WIMP candidates are identified, and a 90% upper limit is set on the spin-independent elastic WIMP-nucleon cross section with a lowest excluded cross section of 2.97\ifmmode×\else\texttimes\fi10^\ensuremath-45 cm2 at a WIMP mass of 44.7 GeV/c2.