Simulation of(p,d) reaction on RIBLL2 for study of tensor force  

作　　者：郭晨雷 张高龙 屈卫卫 Satoru Terashima Isao Tanihata 乐小云 

机构地区：[1]State Key Laboratory of Software Development Environment Beihang University [2]School of Physics and Nuclear Energy Engineering Beihang University [3]International Research Center for Nuclei and Particles in the Cosmos Beihang University [4]Research Center for Nuclear Physics Osaka University

出　　处：《Nuclear Science and Techniques》2015年第4期72-76,共5页核技术（英文）

基　　金：Supported by National Natural Science Foundation of China(Nos.11475013,11035007 and 11175011);State Key Laboratory of Software Development Environment(No.SKLSDE-2014ZX-08);Fundamental Research Funds for the Central Universities;the Key Laboratory of High Precision Nuclear Spectroscopy,Institute of Modern Physics,Chinese Academy of Sciences

摘　　要：In order to study the effect of tensor force,we plan to perform a(p,d)reaction with a 400–1600 Me V proton beam on the RIBLL2 at Lanzhou.Based on the experimental conditions of RIBLL2,a Monte Carlo method is used to simulate(p,d)reaction process.The distributions of primary beam and scattered deuterons are given on the target and at the F1,F2,F3,and F4 positions.Considering the yield of the deuteron,to separate the produced deuteron from the background particles,the target thickness is optimized.To obtain a clear particle identification spectrum by time of flight(TOF)and energy loss(?E),the distance between the two detectors,as well as the energy and timing resolution of detectors are simulated.As a result,the distance between F2 and F4 is fit for that of TOF.After taking into account the particle distribution at F4,both sizes of Multi-Wire Drift Chamber,namely MWDC2 and MWDC3,are selected to be 50 mm×50 mm.In order to study the effect of tensor force, we plan to perform a （p,d） reaction with a 400-1600 MeV proton beam on the RIBLL2 at Lanzhou. Based on the experimental conditions of RIBLL2, a Monte Carlo method is used to simulate （p,d） reaction process. The distributions of primary beam and scattered deuterons are given on the target and at the F1, F2, F3, and F4 positions. Considering the yield of the deuteron, to separate the produced deuteron from the background particles, the target thickness is optimized. To obtain a clear particle identification spectrum by time of flight （TOF） and energy loss （AE）, the distance between the two detectors, as well as the energy and timing resolution of detectors are simulated. As a result, the distance between F2 and F4 is fit for that of TOF. After taking into account the particle distribution at F4, both sizes of Multi-Wire Drift Chamber, namely MWDC2 and MWDC3, are selected to be 50 mm × 50 mm.

关 键 词：反应过程 模拟 张力 Carlo法 能量分辨率 实验条件 能量损失 粒子识别 

分 类 号：O571[理学—粒子物理与原子核物理]