Radiative generation of the CPT-even gauge term of the SME from a dimension-five nonminimal coupling term
Feb 10, 2013
5 pages
Published in:
- Phys.Lett.B 726 (2013) 815-819
- Published: Nov 4, 2013
e-Print:
- 1302.2375 [hep-th]
View in:
Citations per year
Abstract: (Elsevier)
In this Letter we show for the first time that the usual CPT-even gauge term of the Standard Model Extension (SME), in its full structure, can be radiatively generated, in a gauge invariant level, in the context of a modified QED endowed with a dimension-five nonminimal coupling term recently proposed in the literature. As a consequence, the existing upper bounds on the coefficients of the tensor (KF) can be used to improve the bounds on the magnitude of the nonminimal coupling, λ(KσF) , by the factors 10 5 or 10 25 . The nonminimal coupling also generates higher-order derivative contributions to the gauge field effective action quadratic terms.Note:
- Revtex style, two columns, 6 pages, revised final version to be published in the Physics Letters B (2013)
- 11.30.Er
- 11.15.Tk
- 11.30.Cp
- 11.10.Gh
- coupling: nonminimal
- invariance: gauge
- gauge field theory: effective action
- symmetry: discrete
- quantum electrodynamics
- charge conjugation
References(105)
Figures(0)
- [1]
- [1]
- [1]
- [1]
- [1]
- [1]
- [1]
- [2]
- [2]
- [2]
- [3]
- [3]
- [3]
- [3]
- [3]
- [3]
- [3]
- [3]
- [3]
- [3]
- [3]
- [4]
- [4]
- [4]
- [4]