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Phys. Rev. A 69, 022113 (2004) [10 pages]

Radiative corrections to one-photon decays of hydrogenic ions

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J. Sapirstein*
Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556, USA

K. Pachucki†
Institute of Theoretical Physics, Warsaw University, Hoza 69, 00-681 Warsaw, Poland

K. T. Cheng‡
University of California, Lawrence Livermore National Laboratory, Livermore, California 94550, USA

Received 10 November 2003; published 23 February 2004

Radiative corrections to the decay rate of n=2 states of hydrogenic ions are calculated. The transitions considered are the M1 decay of the 2s state to the ground state and the E1(M2) decays of the 2p1/2 and 2p3/2 states to the ground state. The radiative corrections start in order α(Zα)2, but the method used sums all orders of Zα. The leading α(Zα)2 correction for the E1 decays is calculated and compared with the exact result. The extension of the calculational method to parity nonconserving transitions in neutral atoms is discussed.

© 2004 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.69.022113
DOI:
10.1103/PhysRevA.69.022113
PACS:
32.80.Ys, 31.30.Jv, 12.20.Ds

*Electronic address: jsapirst@nd.edu

†Electronic address: krp@fuw.edu.pl

‡Electronic address: ktcheng@llnl.gov

 
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