论文标题
搜索$^{100} $ MO的双β衰减速率的定期调制。
Search for Periodic Modulations of the Rate of Double-Beta Decay of $^{100}$Mo in the NEMO-3 Detector
论文作者
论文摘要
NEMO-3实验记录了6.914 kg高纯度样本的6.914 kg高纯度样本的$^{100} $ MO的双β衰减,该实验搜索了中微子双β衰变。这些非常稀有的过渡到$^{100} $ ru的半衰期约为$ 7 \ times10^{18} $年,并已被用来首次搜索此衰减模式的定期变化。使用Lomb-Scargle周期图技术及其错误加权扩展,用于寻找半衰期的定期调制。 Monte Carlo建模用于研究数据在广泛的幅度和频率上的调制灵敏度。数据显示,在$ 0.33225 \,{\ rm y^{ - 1}} $ $ 365.25 \,{\ rm y^{ - 1}} $的频率范围内,没有幅度大于2.5%的调制证据。
Double-beta decays of $^{100}$Mo from the 6.0195-year exposure of a 6.914 kg high-purity sample were recorded by the NEMO-3 experiment that searched for neutrinoless double-beta decays. These ultra-rare transitions to $^{100}$Ru have a half-life of approximately $7\times10^{18}$ years, and have been used to conduct the first ever search for periodic variations of this decay mode. The Lomb-Scargle periodogram technique, and its error-weighted extension, were employed to look for periodic modulations of the half-life. Monte Carlo modeling was used to study the modulation sensitivity of the data over a broad range of amplitudes and frequencies. Data show no evidence of modulations with amplitude greater than 2.5% in the frequency range of $0.33225\,{\rm y^{-1}}$ to $365.25\,{\rm y^{-1}}$.