A program to calculate the radial parts of interaction matrix elements between two hydrogenic wave functions as power series

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Title of program: HYDROGENIC INTERACTION INTEGRAL Catalogue Id: ABWA_v1_0 Nature of problem The study of the collisional excitation of atoms by charged projectiles involves interaction matrix elements. These can be reduced to a sum of radial integrals involving hydrogenic wave functions, multiplied by functions of R. The integrals are calculated analytically to yield power series in R. Versions of this program held in the CPC repository in Mendeley Data ABWA_v1_0; HYDROGENIC INTERACTION INTEGRAL; 10.1016/0010-4655(70)90017-2 This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2018)

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