The two-nucleon effective-range parameters with tensor forces

Title of program: EFFECTIVE RANGE APPROXIMATION Catalogue Id: ABGJ_v1_0 Nature of problem Subroutine EFRNG is a Fortran IV subroutine designed to calculate the zero energy wavefunction of the neutron-proton J=1+ state when the interaction between the particles is described by a given combination of central, tensor and spin-orbit potentials with or without a hard- core. From this one derives the effective range parameters, viz. The scattering length and effective range in terms of which can be expressed the low energy scattering behaviour. This subroutine may also be employed in the r ... Versions of this program held in the CPC repository in Mendeley Data ABGJ_v1_0; EFFECTIVE RANGE APPROXIMATION; 10.1016/0010-4655(72)90042-2 This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2019)程序标题：有效范围近似 目录编号：ABGJ_v1_0 问题性质 子程序EFRNG是一款Fortran IV子程序，旨在计算中子-质子J=1+状态的零能量波函数，当粒子间的相互作用由特定组合的中央势、张量势和自旋轨道势以及（或）硬芯势描述时。由此，可推导出有效范围参数，即散射长度和有效范围，这些参数可以用来表达低能散射行为。此子程序亦可用于r ...