Exploration of resonances by using complex momentum representation  

作　　者：田亚娟 衡太骅 牛中明 刘泉 郭建友 

机构地区：[1]School of Physics and Materials Science, Anhui University, Hefei 230601, China

出　　处：《Chinese Physics C》2017年第4期88-93,共6页中国物理C（英文版）

基　　金：Supported by National Natural Science Foundation of China(11575002,11175001,11205004,11305002);Program for New Century Excellent Talents at the University of China(NCET-05-0558);Natural Science Foundation of Anhui Province(1408085QA21);Key Research Foundation of Education Ministry of Anhui Province of China(KJ2016A026);211 Project of Anhui University

摘　　要：Resonance research is a hot topic in nuclear physics,and many methods have been developed for resonances.In this paper,we explore resonances by solving the Schrodinger equation in complex momentum representation,in which the bound states and resonant states are separated completely from the continuum and exposed clearly in the complex momentum plane.We have checked the convergence of the calculations on the grid numbers of the Gauss-Hermite quadrature and the Gauss-Legendre quadrature,and the dependence on the contour of momentum integration.Satisfactory results are obtained.^17O is chosen as an example,and we have calculated the bound and resonant states to be in excellent agreement with those calculated in the coordinate representation.Resonance research is a hot topic in nuclear physics,and many methods have been developed for resonances.In this paper,we explore resonances by solving the Schrodinger equation in complex momentum representation,in which the bound states and resonant states are separated completely from the continuum and exposed clearly in the complex momentum plane.We have checked the convergence of the calculations on the grid numbers of the Gauss-Hermite quadrature and the Gauss-Legendre quadrature,and the dependence on the contour of momentum integration.Satisfactory results are obtained.^17O is chosen as an example,and we have calculated the bound and resonant states to be in excellent agreement with those calculated in the coordinate representation.

关 键 词：single-particle levels  resonant states complex momentum representation 

分 类 号：O571[理学—粒子物理与原子核物理]