supported by the Office of Science and Technology,Shanghai Municipal Government(Grant Nos.23JC1410200,and 22JCJC1410200);the Ministry of Science and Technology of China(Grant No.2023YFA1606200);the National Natural Science Foundation of China(Grant Nos.1209060,12005131,11905128,11925502,12222505,and 12175139);support from Double First Class Plan of the Shanghai Jiao Tong University;the Tsung-Dao Lee Institute Experimental Platform Development Fund;the sponsorship from the Hongwen Foundation in Hong Kong;Tencent;New Cornerstone Science Foundation in China;Yangyang Development Fund。
We propose a major upgrade to the existing PandaX-4T experiment at the China Jinping Underground Laboratory.The new experiment,PandaX-xT,will be a multi-ten-tonne liquid xenon,ultra-low background,and general-purpose ...