English

Gauge field localization on brane worlds

High Energy Physics - Theory 2010-04-21 v1

Abstract

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 and 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 4-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.

Keywords

Cite

@article{arxiv.0912.0463,
  title  = {Gauge field localization on brane worlds},
  author = {Rommel Guerrero and Alejandra Melfo and Nelson Pantoja and R. Omar Rodriguez},
  journal= {arXiv preprint arXiv:0912.0463},
  year   = {2010}
}

Comments

7 pages

R2 v1 2026-06-21T14:18:47.196Z