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Axion-modified photon propagator, Coulomb potential, and Lamb shift.
- Source :
-
Physical Review D: Particles, Fields, Gravitation & Cosmology . Dec2018, Vol. 98 Issue 11, p1-1. 1p. - Publication Year :
- 2018
-
Abstract
- A consistent renormalization of a quantum theory of axion-electrodynamics requires terms beyond the minimal coupling of two photons to a neutral pseudoscalar field. This procedure is used to determine the self-energy operators of the electromagnetic and the axion fields with an accuracy of second-order in the axion-diphoton coupling. The resulting polarization tensor is utilized for establishing the axion-modified Coulomb potential of a static pointlike charge. In connection, the plausible distortion of the Lamb-shift in hydrogenlike atoms is established and the scopes for searching axionlike particles in high-precision atomic spectroscopy and in experiments of Cavendish-type are investigated. Particularly, we show that these hypothetical degrees of freedom are ruled out as plausible candidates for explaining the proton radius anomaly in muonic hydrogen. A certain loophole remains, though, which is linked to the nonrenormalizable nature of axion-electrodynamics. [ABSTRACT FROM AUTHOR]
- Subjects :
- *COULOMB potential
*LAMB shift
*QUANTUM theory
Subjects
Details
- Language :
- English
- ISSN :
- 24700010
- Volume :
- 98
- Issue :
- 11
- Database :
- Academic Search Index
- Journal :
- Physical Review D: Particles, Fields, Gravitation & Cosmology
- Publication Type :
- Periodical
- Accession number :
- 133864058
- Full Text :
- https://doi.org/10.1103/PhysRevD.98.115008