CDCC calculations of fusion of 6Li with targets 144Sm and 154Sm：effect of resonance states

作     者：A.Gómez Camacho J.Lubian 张焕乔 周善贵 

作者机构：Departamento de Aceleradores Instituto Nacional de Investigaciones Nucleares Instituto de Fisica Universidade Federal Fluminense China Institute of Atomic Energy Department of Technical Physics Beijing University CAS Key Laboratory of Frontiers of Theoretical Physics Institute of Theoretical Physics Chinese Academy of Sciences Center of Theoretical Nuclear Physics National Laboratory of Heavy Ion Accelerator Synergetic Innovation Center for Quantum Effects and Application Hunan Normal University School of Physical Sciences University of Chinese Academy of Sciences 

出 版 物：《Chinese Physics C》 (中国物理C（英文版）)

年 卷 期：2017年第41卷第12期

页      面：40-48页

核心收录：

学科分类：08[工学] 0827[工学-核科学与技术] 082701[工学-核能科学与工程] 

基　　金：partly supported by the NSF of China(11120101005,11275248,11525524,11621131001,11647601,11711540016) 973 Program of China(2013CB834400) the Key Research Program of Frontier Sciences of CAS.H.Q.Z.from NSF China(11375266) 

主　　题：weakly bound projectiles CDCC total complete incomplete fusion 

摘      要：Continuum Discretized Coupled-Channel（CDCC） model calculations of total, complete and incomplete fusion cross sections for reactions of the weakly bound 6Li with 144,154Sm targets at energies around the Coulomb barrier are presented. In the cluster structure frame of 6Li→α＋d, short-range absorption potentials are considered for the interactions between the ground state of the projectile 6Li and α-d fragments with the target. In order to separately calculate complete and incomplete fusion and to reduce double-counting, the corresponding absorption potentials are chosen to be of different range. Couplings to low-lying excited states 2＋, 3-of 144Sm and 2＋, 4＋ of 154Sm are included. So, the effect on total fusion from the excited states of the target is investigated. Similarly, the effect on fusion due to couplings to resonance breakup states of 6Li, namely, l = 2,Jπ= 3＋, 2＋, 1＋ is also *** latter effect is determined by using two approaches,（a） by considering only resonance state couplings and（b）by omitting these states from the full discretized energy space. Among other things, it is found that both resonance and non-resonance continuum breakup couplings produce fusion suppression at all the energies considered.