Theory of the two-loop self-energy correction to the g factor in 
nonperturbative Coulomb fields

Sikora, Bastian; Yerokhin, V. A.; Oreshkina, Natalia S.; Cakir, Halil; Keitel, Christoph H.; Harman, Zoltan

doi:10.1103/PhysRevResearch.2.012002

Item

ITEM ACTIONSEXPORT

Add to Basket

Local TagsRelease HistoryDetailsSummary

Released

Journal Article

Theory of the two-loop self-energy correction to the g factor in nonperturbative Coulomb fields

MPS-Authors

/persons/resource/persons130143

Sikora, Bastian
Division Prof. Dr. Christoph H. Keitel, MPI for Nuclear Physics, Max Planck Society;

Yerokhin, V. A.
Division Prof. Dr. Christoph H. Keitel, MPI for Nuclear Physics, Max Planck Society;
Center for Advanced Studies, Peter the Great St. Petersburg Polytechnic University, 195251 St. Petersburg, Russia;

/persons/resource/persons37662

Oreshkina, Natalia S.
Division Prof. Dr. Christoph H. Keitel, MPI for Nuclear Physics, Max Planck Society;

/persons/resource/persons198584

Cakir, Halil
Division Prof. Dr. Christoph H. Keitel, MPI for Nuclear Physics, Max Planck Society;

/persons/resource/persons30659

Keitel, Christoph H.
Division Prof. Dr. Christoph H. Keitel, MPI for Nuclear Physics, Max Planck Society;

/persons/resource/persons30565

Harman, Zoltan
Division Prof. Dr. Christoph H. Keitel, MPI for Nuclear Physics, Max Planck Society;

External Resource

https://journals.aps.org/prresearch/pdf/10.1103/PhysRevResearch.2.012002
(Publisher version)

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

Fulltext (public)

1804.05733.pdf
(Preprint), 485KB

Supplementary Material (public)

There is no public supplementary material available

Citation

Sikora, B., Yerokhin, V. A., Oreshkina, N. S., Cakir, H., Keitel, C. H., & Harman, Z. (2020). Theory of the two-loop self-energy correction to the g factor in nonperturbative Coulomb fields. Physical Review Research, 2(1): 012002(R). doi:10.1103/PhysRevResearch.2.012002.

Cite as: https://hdl.handle.net/21.11116/0000-0005-9B2C-C

Abstract

Two-loop self-energy corrections to the bound-electron $g$ factor are
investigated theoretically to all orders in the nuclear binding strength
parameter $Z\alpha$. The separation of divergences is performed by dimensional
regularization, and the contributing diagrams are regrouped into specific
categories to yield finite results. We evaluate numerically the loop-after-loop
terms, and the remaining diagrams by treating the Coulomb interaction in the
electron propagators up to first order. The results show that such two-loop
terms are mandatory to take into account for projected near-future stringent
tests of quantum electrodynamics and for the determination of fundamental
constants through the $g$ factor.