Propagating Torsion in 3D-Gravity and Dynamical Mass Generation

Details Propagating Torsion in 3D-Gravity and Dynamical Mass Generation Propagating Torsion in 3D-Gravity and Dynamical Mass Generation

1999-05-14

arxiv.org/abs/hep-th/9905110v3

Class.Quantum Grav. 19 (2002) 2201

Physics

High Energy Physics

High Energy Physics - Theory

13 pages, latex file, no figures, some corrections added

Scientific paper

10.1088/0264-9381/19/8/310

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.

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