Three-dimensional potential energy surface for fission of^(236)U within covariant density functional theory  

作　　者：周明晖 李泽宇 陈盛远 陈永静 李志攀 Ming-Hui Zhou;Ze-Yu Li;Sheng-Yuan Chen;Yong-Jing Chen;Zhi-Pan Li(School of Physical Science and Technology,Southwest University,Chongqing 400715,China;China Nuclear Data Center,China Institute of Atomic Energy,Beijing 102413,China)

机构地区：[1]School of Physical Science and Technology,Southwest University,Chongqing 400715,China [2]China Nuclear Data Center,China Institute of Atomic Energy,Beijing 102413,China

出　　处：《Chinese Physics C》2023年第6期143-149,共7页中国物理C（英文版）

基　　金：Supported by the National Natural Science Foundation of China(11875225,11790325,11790320);the Special Fund from the China Nuclear Data Center;the Fundamental Research Funds for the Central Universities;the Fok Ying-Tong Education Foundation。

摘　　要：We calculate the three-dimensional potential energy surface(PES)for the fission of the compound nucleus^(236)U using covariant density functional theory with constraints on the axial quadrupole and octupole deformations(β_(2),β_(3))coexistence of the elongated and compact fission modes is predicted for comes shallow across a large range of quadrupole and octupole deformations for small scission line in the(β_(2),β_(3))plane extends to a shallow band,leading to fluctuations of several to ten MeV in the estimated total kinetic energies and of several to approximately ten nucleons in the fragment masses.

关 键 词：multi-dimensional potential energy surface covariant density functional theory SCISSION total kinetic energy 

分 类 号：O571.43[理学—粒子物理与原子核物理]