Relativistic analogues of nonrelativistic integrals in R-matrix calculations

V. Jonauskas, F. P. Keenan, R. Kisielius, P. A.M. Van Hoof, M. E. Foord, R. F. Heeter, S. J. Rose, G. J. Ferland, P. H. Norrington

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


Relativistic analogues of integrals are applied to the nonrelativistic R-matrix code to demonstrate the possibilities of the method. An expression for the relativistic analogue of the multipole integral is obtained. Energy levels and electron impact excitation cross sections for transitions in C2+, Fe22+ and W70+, calculated with different codes, are compared. It is found that the relativistic analogues of integrals method shows good agreement with results calculated using a relativistic code.

Original languageEnglish
Pages (from-to)L79-L85
JournalJournal of Physics B: Atomic, Molecular and Optical Physics
Issue number5
StatePublished - Mar 14 2005

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics


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