Relativistic recoil corrections to the electron-vacuum-polarization contribution in light muonic atoms
| Autor: | Karshenboim, Savely G., Ivanov, Vladimir G., Korzinin, Evgeny Yu. |
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| Rok vydání: | 2011 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevA.85.032509 |
| Popis: | The relativistic recoil contributions to the Uehling corrections are revisited. We consider a controversy in recent calculations based on different approaches including Breit-type and Grotch-type calculations. We have found that calculations of those authors were in fact done in different gauges and in some of those gauges contributions the retardation and two-photon-exchange effects were missed. We have evaluated such effects and obtained a consistent result from those approaches. We present a correct expression for the Grotch-type approach which produces a correct gauge-invariant result. We also consider a finite-nuclear-size correction for the Uehling term. The results are presented for muonic hydrogen and deuterium atoms and for muonic helium-3 and helium-4 ions. Comment: Submitted to Phys. Rev. A; in v.2 results for muonic helium are corrected |
| Databáze: | arXiv |
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