Radiative orbital electron capture by the atomic nucleus

K. Pachucki, U. D. Jentschura, M. Pfützner

Research output: Contribution to journalArticle

2 Citations (Scopus)


The rate for the photon emission accompanying orbital 1S electron capture by the atomic nucleus is recalculated. While a photon can be emitted by the electron or by the nucleus, the use of the length gauge significantly suppresses the nuclear contribution. Our calculations resolve the long standing discrepancy of theoretical predictions with experimental data for ΔJ=2 forbidden transitions. We illustrate the results by comparison with the data established experimentally for the first forbidden unique decays of Ca41 and Tl204.

Original languageEnglish
Article number055502
JournalPhysical Review C - Nuclear Physics
Issue number5
Publication statusPublished - May 18 2007

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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