h / 99 05 11 0 v 3 2 4 Se p 20 02 Propagating torsion in 3 D - gravity and dynamical mass generation
نویسنده
چکیده
In this paper, fermions are minimally coupled to 3D-gravity with dynamical torsion. A Kalb-Ramond field is also introduced and non-minimally coupled to the 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 fermion mass shift proportional to the Yukawa coupling whenever these fermions already have a non-vanishing tree-level mass. PACS numbers: 11.10.Gh, 11.10.Kk, 11.15.-q
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تاریخ انتشار 2002