Resolving XENON excess with decaying cold dark matter
Resolving XENON excess with decaying cold dark matter
复制标题
用衰变的冷暗物质解决氙过剩问题
DOI:
10.1140/epjc/s10052-021-09262-x
复制
发表时间:
2020-12
期刊:
影响因子:
--
通讯作者:
Zheng Sibo
中科院分区:
文献类型:
--
作者:
Xu Shuai;Zheng Sibo
We propose a decaying cold dark matter model to explain the excess of electron recoil observed at the XENON1T experiment. In this scenario, the daughter dark matter from the parent dark matter decay easily obtains velocity large enough to saturate the peak of the electron recoil energy around 2.5 keV, and the observed signal rate can be fulfilled by the parent dark matter with a mass of order 10–200 MeV and a lifetime larger than the age of Universe. We verify that this model is consistent with experimental limits from dark matter detections, Cosmic microwave background and large scale structure experiments.
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