Search for New Physics in Electronic Recoil Data from XENONnT
Search for New Physics in Electronic Recoil Data from XENONnT
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DOI:
10.1103/physrevlett.129.161805
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发表时间:
2022-10-13
影响因子:
8.6
通讯作者:
Zhu, T.
中科院分区:
文献类型:
--
作者:
Aprile, E.;Abe, K.;Zhu, T.
We report on a blinded analysis of low-energy electronic recoil data from the first science run of the XENONnT dark matter experiment. Novel subsystems and the increased 5.9 ton liquid xenon target reduced the background in the (1, 30) keV search region to (15.8 +/- 1.3) events/(ton x year x keV), the lowest ever achieved in a dark matter detector and-5 times lower than in XENON1T. With an exposure of 1.16 ton-years, we observe no excess above background and set stringent new limits on solar axions, an enhanced neutrino magnetic moment, and bosonic dark matter.