Dark matter direct search sensitivity of the PandaX-4T experiment

By Hongguang Zhang, A. Abdukerim, Wei Chen, Xun Chen, Yunhua Chen, X. Cui, B. Dong, D. Fang, C. Fu, K. Giboni and 52 more. Science China Physics Mechanics and Astronomy, 2018

191 citations recorded by the source corpus.

The PandaX-4T experiment, a 4-ton scale dark matter direct detection experiment, is being planned at the China Jinping Un- derground Laboratory. In this paper we present a simulation study of the expected background in this experiment. In a 2.8-ton fiducial mass and the signal region between 1–10 keV electron equivalent energy, the total electron recoil background is found to be 4:9 × 10−5 kg−1d−1keV−1. The nuclear recoil background in the same region is 2:8 × 10−7 kg−1d−1keV−1. With an exposure of 5.6 ton-years, the sensitivity of PandaX-4T could reach a minimum spin-independent dark matter-nucleon cross section of 6 × 10−48 cm2 at a dark matter mass of 40 GeV/c2.

Subfields: Atomic and Molecular Physics, and Optics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/c7cabf0b30b719778625e80fdd805d300ef8a8a5