Pipit: A momentum space optical potential code for pions
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http://doi.org/10.17632/gjjhtv9xm2.1
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资源简介：
Title of program: PIPIT
Catalogue Id: ABIH_v1_0
Nature of problem
Angular distributions for the elastic scattering of pions are generated by summing a partial wave series. The elastic T-matrix elements for each partial wave are obtained by solving a relativistic Lippmann- Schwinger equation in momentum space using a matrix inversion technique. The Coulomb interaction is included essentially exactly using the method of Vincent and Phatak. The piN amplitude is obtained from phase shift information on-shell and incorporates a separable off-shell form factor to en ...
Versions of this program held in the CPC repository in Mendeley Data
ABIH_v1_0; PIPIT; 10.1016/0010-4655(76)90072-2
This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2019)
标题：PIPIT
问题性质
π介子的弹性散射角分布通过叠加部分波级数而生成。通过在动量空间中求解相对论性的李普曼-施温格方程，并使用矩阵逆技术来获取每个部分波的弹性T矩阵元素。库仑相互作用主要通过Vincent和Phatak的方法进行精确的包含。πN振幅通过在壳上相位移信息获得，并引入一个可分离的壳外形式因子，以……
该程序版本存放在Mendeley数据中CPC存储库中
ABIH_v1_0; PIPIT; 10.1016/0010-4655(76)90072-2
本程序已从贝尔法斯特女王大学（1969-2019）持有的CPC程序库中导入
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doi.org
