利用反预报方法从截面预言近滴线丰质子核的结合能  

Binding energy of near proton-drip line Isotope predicted from cross section by a reverse prediction method

作　　者：马春旺 宋一丹[1] Ma Chunwang;Song Yidan(College of Physics and Materials Science,Henan Normal University, Xinxiang 453007,China;National Demonstration Center for Experimental Teaching in Physics,Henan Normal University, Xinxiang 453007,China)

机构地区：[1]河南师范大学物理与材料科学学院,河南新乡453007 [2]河南师范大学国家物理实验教学示范中心,河南新乡453007

出　　处：《河南师范大学学报（自然科学版）》2018年第1期60-63,共4页Journal of Henan Normal University(Natural Science Edition)

基　　金：国家自然科学基金(U1732135);河南省自然科学基金(162300410179);河南师范大学优秀青年项目(154100510007);国家大学生创新创业项目(CEPNU201510476017);河南省科技创新人才项目(154100510007)

摘　　要：在Origin等数据处理软件中,当实验数据较少时,自由参数的不同初始化设置会导致较大的结果差异,这为物理结果的确定带来较大不确定性.通过最小二乘法分析了345MeV/u ^(78) Kr+~9Be反应中产生的丰质子同位素的截面和结合能,并得到线性回归方程.通过回归方程,利用结合能预报部分丰质子核素的截面,以及通过实验截面对近质子滴线核素的结合能进行反预报测量.这对于近质子滴线的丰质子核素实验测量具有较好的借鉴意义.For the data analysis softwares such as Origin,when the experimental data is not enough,the initializing of parameters leads to a large difference in the fitting results.To determine the binding energies of some near proton drip line isotopes,a least squares method(LSM)was introduced to analyze the correlation between the cross sections and binding energies of isotopes.The linear regression equation for the isotopes measured in the345MeV/u78Kr+9Be reaction was obtained by the LSM,based on which the cross sections and the binding energies of near proton drip isotopes were obtained.

关 键 词：最小二乘法 回归直线 反预报 结合能 丰质子核素 

分 类 号：N37[自然科学总论] O571.22[理学—粒子物理与原子核物理]