违反泡利不相容原理的实验研究
Experimental search for the violation of Pauli Exclusion Principle
摘要：
泡利不相容原理-2实验的VIOLATION，或VIP-2实验，在Gran Sasso的Nazionali del Gran Sasso实验室寻找来自铜原子跃迁的X射线，这是泡利不相容原理所禁止的。候选的直接破坏事件来自于一个$2p$电子到已经被两个电子占据的基态的跃迁。从VIP-2实验2016年的第一次数据采集活动中，我们确定了3.4 $\times$ × 10 $^{-29}$的最佳上限，用于存在这种违规的概率。实验系统学的控制也取得了显着的改善，虽然没有明确反映在改进的上限。通过在分析中引入信号和背景数据的同时光谱拟合，我们成功地考虑了以前在这种类型的测量中无法评估的系统误差。
英文摘要：
The VIolation of Pauli exclusion principle -2 experiment, or VIP-2 experiment, at the Laboratori Nazionali del Gran Sasso searches for x-rays from copper atomic transition that are prohibited by the Pauli Exclusion Principle. Candidate direct violation events come from the transition of a $2p$ electron to the ground state that is already occupied by two electrons. From the first data taking campaign in 2016 of VIP-2 experiment, we determined a best upper limit of 3.4 $\times$ 10$^{-29}$ for the probability that such a violation exists. Significant improvement in the control of the experimental systematics was also achieved, although not explicitly reflected in the improved upper limit. By introducing a simultaneous spectral fit of the signal and background data in the analysis, we succeeded in taking into account systematic errors that could not be evaluated previously in this type of measurements.
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