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PandaX location at CJPL

The PandaX experiment, located in the deepest dark matter facility at the China JinPing Laboratory (CJPL) in Sichuan Province, aims to explore dark matter through advanced Time Projection Chamber (TPC) designs. Both PandaX-1 and PandaX-2 focus on different mass ranges, with PandaX-1 targeting low-mass dark matter and PandaX-2 optimized for larger masses. The unique site, covered by 2,500 meters of marble, enhances sensitivity to elusive dark matter particles. The collaboration includes leading institutions like SJTU, U-M, and Peking University, marking significant advancements in dark matter research.

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PandaX location at CJPL

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  1. (Particle ANDAstrophysical Xenon TPC) • A multi-stage liquid Xebased Dark Matterexperiment at China JinPing Lab(location: Sichuan Province) • Deepest dark matter facility, covered with 2,500m of marble • PandaX-1: Time Projection Chamber (TPC) design optimized for low mass dark matter • PandaX-2: increase the fiducial mass: optimized for large mass dark matter PandaX location at CJPL PandaX-1a TPC

  2. expected sensitivity • PandaX-1a: • exposure: 25 kg x 300 days • start Nov 2012 • PandaX-2 (ton-scale): • exposure: 1,200 kg x 600 days • start 2015 PandaX-2: world’s most sensitive Dark Matter search experiment

  3. December 2011 collaboration meeting Xiangdong Ji (PI - PandaX) Wolfgang Lorenzon (PI - U-M) • Member institutions: • Shanghai Jiao Tong University (SJTU) • Shanghai Institute of Applied Physics • Shandong University • Peking University • University of Michigan (U-M) MOU between U-M & SJTU signed in September 2011 3

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