Energy-dependent angular distribution of individual gamma rays in the 139La(n,gamma)140La reaction
Energy-dependent angular distribution of individual gamma rays in the 139La(n,gamma)140La reaction
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139La(n,gamma)140La 反应中单个伽马射线的能量相关角分布
DOI：
10.1103/physrevc.104.014601
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发表时间：
2021
影响因子：
3.1
通讯作者：
Yoshioka T.
中科院分区：
文献类型：
--
作者：
Okudaira T.;Endo S.;Fujioka H.;Hirota K.;Ishizaki K.;Kimura A.;Kitaguchi M.;Koga J.;Niinomi Y.;Sakai K.;Shima T.;Shimizu H. M.;Takada S.;Tani Y.;Yamamoto T.;Yoshikawa H.;Yoshioka T.
从0.74 eV波共振到几个较低的激发态，观察到了与中子能量相关的角分布。的射线信号进行了分析，在一个二维直方图的射线能量，测量与分布式锗探测器，中子能量，确定与脉冲中子的飞行时间，以确定中子能量的角分布为每个individualrays的依赖。角分布也被发现为一个与弱波共振分量伴随的一个峰。我们的结果可以解释为-和-波振幅之间的干涉，这可能被用来研究基本相互作用的离散对称性。
Neutron energy-dependent angular distributions were observed for individualrays from the 0.74 eV-wave resonance ofto several lower excited states of. The-ray signals were analyzed in a two-dimensional histogram of the-ray energy, measured with distributed germanium detectors, and neutron energy, determined with the time-of-flight of pulsed neutrons, to identify the neutron energy dependence of the angular distribution for each individualrays. The angular distribution was also found for a photopeak accompanied with a faint-wave resonance component. Our results can be interpreted as interference between- and-wave amplitudes, which may be used to study discrete symmetries of fundamental interactions.