Calculations of the energy structure of neutral phosphorus by B-spline R-matrix method

Abstract

The B-spline R-matrix (BSR) method is used to study the structure of the electron shell of the neutral phosphorus. This method allows to use the term-dependent nonorthogonal orbitals along with B-splines as basis functions. Thus, it provides the effective accounting of electron correlation. In this paper, the energy structure of the phosphorus atom is calculated. The calculation results demonstrate good agreement with the available experimental data. In the future, our data will be used in the study of electron scattering on phosphorus atoms: e−P.