Orientation dichroism effect of proton scattering on deformed nuclei  

作　　者：Li Ou Zhi-Gang Xiao 欧立;肖志刚(College of Physics and Technology and Guangxi Key Laboratory of Nuclear Physics and Technology,Guangxi Normal University,Guilin 541004,China;Department of Physics,Tsinghua University,Beijing 100084,China)

机构地区：[1]College of Physics and Technology and Guangxi Key Laboratory of Nuclear Physics and Technology,Guangxi Normal University,Guilin 541004,China [2]Department of Physics,Tsinghua University,Beijing 100084,China

出　　处：《Chinese Physics C》2020年第11期150-155,共6页中国物理C（英文版）

基　　金：Supported by the National Natural Science Foundation of China(11875174,11890712,11965004,11947413,U1867212,11711540016);Natural Science Foundation of Guangxi(2016GXNSFFA380001,2017GXNSFGA198001);Foundation of Guangxi innovative team and distinguished scholar in institutions of higher education。

摘　　要：Proton-induced scattering of 238U nuclei,with spheroidal deformations at beam energies above 100 MeV,is simulated using an improved quantum molecular dynamics model.The angular distribution of the deflected protons is highly sensitive to the orientation of the symmetrical long axis of the target nuclei with respect to the beam direction.As a result,in reverse kinematic reactions,an orientation dichroism effect is predicted,implying that the absorption rate of the 238U beam by a proton target discerns between the parallel and perpendicular orientations of the deformed 238U nuclei.

关 键 词：proton-induced reaction improved quantum molecular dynamics model deformed nucleus DICHROISM 

分 类 号：O571[理学—粒子物理与原子核物理]