新高灵敏度搜索：在PSI UCN源中寻找中子到镜像中子振荡
New high-sensitivity search for neutron to mirror-neutron oscillations at the PSI UCN source
AI总结：
该研究在PSI UCN源中利用高灵敏度装置，通过磁场分析和模拟排除了中子到镜像中子振荡的潜在信号参数空间，设定了新的限制。
摘要：
在寻找中子（n）到镜像中子（n'）振荡的潜在信号过程中，以保罗·施特劳斯研究所（PSI）为中心的合作组利用专门的高灵敏度装置研究了仍被异常现象所声称的剩余参数空间。通过详细的磁场映射分析和对存储容器内中子轨迹上累积的n-n'振荡概率的蒙特卡洛模拟，补充了中子数据分析。磁场扫描范围为5微特斯拉 < B < 109微特斯拉。未发现异常中子损失的证据。因此，对n-n'振荡时间常数设定了新的限制。之前声称的参数空间已被排除至99.98%。
英文摘要：
In a search for potential signals of neutron (n) to mirror-neutron (n') oscillations, a collaboration centered at the Paul Scherrer Institute (PSI) investigated the remaining parameter space claimed by anomalies with a dedicated high-sensitivity apparatus. An elaborate magnetic-field-mapping analysis and Monte Carlo simulation of the cumulative n-n' oscillation probabilities along the neutron trajectories inside the storage vessel complemented the neutron data analysis. Magnetic fields were scanned in the range 5 microT < B < 109 microT. No evidence of anomalous neutron losses was found. Consequently, new limits for the n-n' oscillation time constant were set. The parameter space, previously claimed for potential signals, has been excluded to 99.98 %.
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