201. Search for Dark-Matter-Nucleon Interactions with a Dark Mediator in PandaX-4T.
- Author
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Huang D, Abdukerim A, Bo Z, Chen W, Chen X, Cheng C, Cheng Z, Cui X, Fan Y, Fang D, Fu C, Fu M, Geng L, Giboni K, Gu L, Guo X, Han C, Han K, He C, He J, Huang Y, Huang J, Huang Z, Hou R, Hou Y, Ji X, Ju Y, Li C, Li J, Li M, Li S, Li T, Lin Q, Liu J, Lu C, Lu X, Luo L, Luo Y, Ma W, Ma Y, Mao Y, Meng Y, Ning X, Qi N, Qian Z, Ren X, Shaheed N, Shang X, Shao X, Shen G, Si L, Sun W, Tan A, Tao Y, Wang A, Wang M, Wang Q, Wang S, Wang S, Wang W, Wang X, Wang Z, Wei Y, Wu M, Wu W, Xia J, Xiao M, Xiao X, Xie P, Yan B, Yan X, Yang J, Yang Y, Yao Y, Yu C, Yuan Y, Yuan Z, Zeng X, Zhang D, Zhang M, Zhang P, Zhang S, Zhang S, Zhang T, Zhang W, Zhang Y, Zhang Y, Zhang Y, Zhao L, Zheng Q, Zhou J, Zhou N, Zhou X, Zhou Y, Zhou Y, Huo R, and Yu H
- Abstract
We report results of a search for dark-matter-nucleon interactions via a dark mediator using optimized low-energy data from the PandaX-4T liquid xenon experiment. With the ionization-signal-only data and utilizing the Migdal effect, we set the most stringent limits on the cross section for dark matter masses ranging from 30 MeV/c^{2} to 2 GeV/c^{2}. Under the assumption that the dark mediator is a dark photon that decays into scalar dark matter pairs in the early Universe, we rule out significant parameter space of such thermal relic dark-matter model.
- Published
- 2023
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