Propagating Torsion in 3D-Gravity and Dynamical Mass Generation
High Energy Physics - Theory
2009-10-31 v3
Abstract
In this paper, fermions are minimally coupled to 3D-gravity where a dynamical torsion is introduced. A Kalb-Ramond field is non-minimally coupled to these fermions in a gauge-invariant way. We show that a 1-loop mass generation mechanism takes place for both the 2-form gauge field and the torsion. As for the fermions, no mass is dynamically generated: at 1-loop, there is only a mass shift proportional to the Yukawa coupling whenever the fermions have a non-vanishing tree-level mass.
Cite
@article{arxiv.hep-th/9905110,
title = {Propagating Torsion in 3D-Gravity and Dynamical Mass Generation},
author = {J. L. Boldo and J. A. Helayel-Neto and N. Panza},
journal= {arXiv preprint arXiv:hep-th/9905110},
year = {2009}
}
Comments
13 pages, latex file, no figures, some corrections added