论文标题
来自中子诱导的$ p $ - $^{132} $ xe的$γ$ - 砂的角度分布
Angular distribution of $γ$-rays from a neutron-induced $p$-wave resonance of $^{132}$Xe
论文作者
论文摘要
从3.2 ev $ p $ p $ p $ p $ p $^{131} $ xe+$ n $的单个$γ$ rays测量了中子能量依赖的角度分布，这表明违反了奇偶校验，这表明$ s $ - $ s $ - 和$ p $ -p $ -wave amplitudes。从$ p $ - 波的共鸣中$γ$ - 射线的过渡，并且对中子动量的角度分布作为7132 keV $γ$ rays的中子能量的函数评估，这对应于1807 kev兴奋的状态$^{132} $ XE。角度分布被认为是源于$ s $ - 和$ p $ - 波幅度之间的干扰，并将为对化合物核中基本奇偶校验违规的增强机制的定量理解提供基础。
A neutron-energy dependent angular distribution was measured for individual $γ$-rays from the 3.2 eV $p$-wave resonance of $^{131}$Xe+$n$, that shows enhanced parity violation owing to a mixing between $s$- and $p$-wave amplitudes. The $γ$-ray transitions from the $p$-wave resonance were identified, and the angular distribution with respect to the neutron momentum was evaluated as a function of the neutron energy for 7132 keV $γ$-rays, which correspond to a transition to the 1807 keV excited state of $^{132}$Xe. The angular distribution is considered to originate from the interference between $s$- and $p$-wave amplitudes, and will provide a basis for a quantitative understanding of the enhancement mechanism of the fundamental parity violation in compound nuclei.
