## PandaX: Particle and Astrophysical Xenon Experiments

PandaX is designed to build and operate a ton-scale liquid xenon experiment to search elusive dark matter particles and neutrinoless double beta decay.

PandaX-II is a dark matter direct detection experiment equipped with a half-ton scale dual-phase time projection chamber (TPC). The PandaX-II experiment started since Oct 2014 with the detector installation at CJPL, followed by about one year of engineering runs and test. The commissiong run started on Nov 22, 2015.

Combining the data from the comissioning run and the first physics run, PandaX-II obtained the most stringent upper limits on the SI WIMP-nucleon cross sectiones for WIMPs with masses between 5 and 1000 GeV.

PandaX-III searches for the possible neutrinoless double beta decay with 200 kg to one ton of 90% enriched ${}^{136}Xe$.

Combining the data from the comissioning run and the first physics run, PandaX-II obtained the most stringent upper limits on the SI WIMP-nucleon cross sectiones for WIMPs with masses between 5 and 1000 GeV.

6 tons total, 4 tons sensitive target to push the DM sensitivity down to $6\times10^{-48} cm^{2}$.

## News

• Xiangdong Ji, Spokesperson and Project Leader of the PandaX experiment located in the China Jin-Ping underground Laboratory (CJPL), announced the first dark matter search results from the PandaX-II 500 kg liquid xenon detector in the 2016 International Identification of Dark Matter conference at Sheffield, UK in the evening of July 21, 2016 (Beijing Time). He reported that no trace of dark matter was observed with an exposure of 33,000 kg·day of liquid xenon, providing the newest constraints on the existence of dark matter.

## Events

• Saturday, January 4, 2020 - 08:00
Xichang
• Saturday, December 14, 2019 - 13:00
T. D. Lee Library
• Tuesday, June 25, 2019 - 08:00
YuGang Bao Library

Following the activity on Exotic Hadrons initiated last year at T. D. Lee Institute in Shanghai, we are glad to announce the Workshop

Exotic Hadrons: Theory and Experiment at Lepton and Hadron Colliders

to be held at the T.D. Lee Institute, located in Shanghai Jiao Tong University, June 25-27, 2019.