Measurement of the angular distribution of γ-rays emitted from the compound state after neutron capture by 81Br for a search of T-violation
Measurement of the angular distribution of γ-rays emitted from the compound state after neutron capture by 81Br for a search of T-violation
复制标题
测量 81Br 俘获中子后化合物态发射的 γ 射线角分布，以寻找 T 破坏
DOI：
10.1051/epjconf/201921909003
复制
发表时间：
2019
影响因子：
--
通讯作者：
Haddock Christopher C.
中科院分区：
文献类型：
--
作者：
Endo Shunsuke;Shimizu Hirohiko M.;Kitaguchi Masaaki;Katsuya Hirota;Yamamoto Tomoki;Ishizaki Kohei;Sato Takumi;Yoshioka Tamaki;Takada Shusuke;Koga Jun;Okudaira Takuya;Sakai Kenji;Kimura Atsushi;Haddock Christopher C.
在复合核中，由于s波和p波的混合，宇称破缺被增强，时间反演不变性（T）破缺也被同样的机制增强。我们计划用中子俘获反应产生的复合核进行T-破坏搜索。尽管81 Br是候选靶核之一，但它对T破坏的敏感性尚未确定。为了估计后者，2017年11月对81 Br（n，γ）反应中发射的γ射线的角分布进行了测量，我们报告了第一批结果。
It is known that parity violation can be enhanced in compound nuclei due to mixing of s- and p-waves, and it is suggested that time reversal invariance (T) violation is enhanced by the same mechanism. We are planing a T-violation search using compound nuclei produced in neutron capture reactions. Although81Br is one of the candidate target nuclei, its sensitivity to T-violation has not yet been determined. For an estimate of the latter, a measurement of the angular distribution of γ-rays emitted in the81Br(n,γ) reaction was carried out in November 2017, of which we report first results.