Gauge field localization on brane worlds
- Departamento de Fisica, Universidad Centroccidental Lisandro Alvarado, 400 Barquisimeto (Venezuela, Bolivarian Republic of)
- Centro de Fisica Fundamental, Universidad de Los Andes, Merida (Venezuela, Bolivarian Republic of)
We consider the effects of spacetime curvature and brane thickness on the localization of gauge fields on a brane via kinetic terms induced by localized fermions. We find that in a warped geometry with an infinitely thin brane, both the infrared and the ultraviolet behavior of the electromagnetic propagator are affected, providing a more stringent bound on the brane's tension than that coming from the requirement of four-dimensional gravity on the brane. On the other hand, for a thick wall in a flat spacetime, where the fermions are localized by means of a Yukawa coupling, we find that four-dimensional electromagnetism is recovered in a region bounded from above by the same critical distance appearing in the thin case, but also from below by a new scale related to the brane's thickness and the electromagnetic couplings. This imposes very stringent bounds on the brane's thickness which seem to invalidate the localization mechanism for this case.
- OSTI ID:
- 21409672
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 81, Issue 8; Other Information: DOI: 10.1103/PhysRevD.81.086004; (c) 2010 The American Physical Society; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
BRANES
COUPLING
ELECTROMAGNETISM
FERMIONS
FOUR-DIMENSIONAL CALCULATIONS
GAUGE INVARIANCE
GRAVITATION
PROPAGATOR
SPACE-TIME
THICKNESS
ULTRAVIOLET RADIATION
YUKAWA POTENTIAL
DIMENSIONS
ELECTROMAGNETIC RADIATION
INVARIANCE PRINCIPLES
MAGNETISM
NUCLEAR POTENTIAL
POTENTIALS
RADIATIONS