Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2003-11-11
Physics
High Energy Physics
High Energy Physics - Phenomenology
22 pages, 2 figures
Scientific paper
10.1103/PhysRevA.69.022113
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 $2p_{1/2}$ and $2p_{3/2}$ states to the ground state. The radiative corrections start in order $\alpha (Z \alpha)^2$, but the method used sums all orders of $Z\alpha$. The leading $\alpha (Z\alpha)^2$ 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.
Cheng Kwok-Tsang
Pachucki Krzysztof
Sapirstein J.
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