Dark Matter Search Results from 1.54 Tonne$\cdot$Year Exposure of PandaX-4T

Understand

In this letter, we report the dark matter search results from the commissioning run and the first science run of the PandaX-4T experiment.

• A blind analysis is carried out on the entire data set.
• The data processing is improved compared to previous work, unifying the low-level signal reconstruction in a wide energy range up to 120 keV.
• With a total exposure of 1.54 tonne$\cdot$year, no significant excess of nuclear recoil events is found.