Singular and nonsingular three-body integrals for exponential wave functions.

@article{Harris2004SingularAN,
  title={Singular and nonsingular three-body integrals for exponential wave functions.},
  author={F. Harris and A. M. Frolov and V. H. Smith},
  journal={The Journal of chemical physics},
  year={2004},
  volume={121 13},
  pages={
          6323-33
        }
}
Integrals which are individually singular, but which may be combined to yield convergent expressions, are needed for computations of relativistic effects and various properties of atomic and quasiatomic systems. As computations become more detailed and precise, more such integrals are required. This paper presents general formulas for the radial parts of the singular and nonsingular (regular) integrals that occur when three-body systems are described using wave functions that include… Expand
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