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Journal Article

#### Two-loop QED corrections with closed fermion loops for the bound-electron g factor

##### Locator

http://link.aps.org/doi/10.1103/PhysRevA.88.042502

(Publisher version)

##### Fulltext (public)

1308.2138.pdf

(Preprint), 248KB

##### Supplementary Material (public)

There is no public supplementary material available

##### Citation

Yerokhin, V. A., & Harman, Z. (2013). Two-loop QED corrections with closed fermion
loops for the bound-electron g factor.* Physical Review A,* *88*(4):
042502. Retrieved from http://arxiv.org/abs/1308.2138.

Cite as: http://hdl.handle.net/11858/00-001M-0000-0014-9CEB-3

##### Abstract

Two-loop QED corrections with closed fermion loops are calculated for the 1s
bound-electron g factor. Calculations are performed to all orders in the
nuclear binding strength parameter Z\alpha (where Z is the nuclear charge and
\alpha is the fine structure constant) except for the closed fermion loop,
which is treated within the free-loop (Uehling) approximation in some cases.
Comparison with previous Z\alpha-expansion calculations is made and the
higher-order remainder of order \alpha^2(Z\alpha)^5 and higher is separated out
from the numerical results.