Simulation and analysis of ～(13)N+p elastic resonance scattering  

作　　者：王友宝 秦星 王宝祥 柳卫平 李志宏 白希祥 连钢 郭冰 曾晟 苏俊 李云居 蒋超 

机构地区：[1]Department of Nuclear Physics, China Institute of Atomic Energy(CIAE)

出　　处：《Chinese Physics C》2009年第3期181-186,共6页中国物理C（英文版）

基　　金：Supported by National Natural Science Foundation of China (10575136, 10735100);Major State Basic Research Develop-ment Program (2007CB815003)

摘　　要：The ^13 N＋p elastic resonance scattering has been studied at the secondary radioactive beam facility of CIAE in inverse kinematics via a thick-target method. The excitation function for the ^13N（p,p） scattering was obtained in the energy interval of Ecru ≈0.5-3.2 MeV with a ^13 N secondary beam of （47.8±1.5） MeV. Careful analysis of the secondary beam components and extensive Monte-Carlo simulations enable the resolution of the experimental proton spectra. The resonance parameters for five low-lying levels in ^14 O were deduced by Rmatrix fitting calculations with MULTI7 and SAMMY-M6-BETA. The present results show general agreement with those from a recent similar work, and thus confirm the observation of a new 0^- level at 5.7 MeV in 140 with an improved width of 400（45） keV.The ^13 N＋p elastic resonance scattering has been studied at the secondary radioactive beam facility of CIAE in inverse kinematics via a thick-target method. The excitation function for the ^13N（p,p） scattering was obtained in the energy interval of Ecru ≈0.5-3.2 MeV with a ^13 N secondary beam of （47.8±1.5） MeV. Careful analysis of the secondary beam components and extensive Monte-Carlo simulations enable the resolution of the experimental proton spectra. The resonance parameters for five low-lying levels in ^14 O were deduced by Rmatrix fitting calculations with MULTI7 and SAMMY-M6-BETA. The present results show general agreement with those from a recent similar work, and thus confirm the observation of a new 0^- level at 5.7 MeV in 140 with an improved width of 400（45） keV.

关 键 词：radioactive secondary beam elastic resonance scattering excitation function thick-target method 

分 类 号：O571.2[理学—粒子物理与原子核物理]