机构:Laboratoire de Physique Théorique (Unité Associée au CNRS No 769), Institut Henri Poincaré, Université Pierre et Marie Curie, 75231 Paris Cedex 05, 11, Rue Pierre et Marie Curie
ALDROVANDI, R
机构:
[1] Laboratoire de Physique Théorique (Unité Associée au CNRS No 769), Institut Henri Poincaré, Université Pierre et Marie Curie, 75231 Paris Cedex 05, 11, Rue Pierre et Marie Curie
A scheme inspired in Lie algebra extensions is introduced that enlarges gauge models to allow some coupling between space-time and gauge space. Everything may be written in terms of a generalized covariant derivative including usual differential plus purely algebraic terms. A noncovariant vacuum appears, introducing a natural symmetry breaking, but currents satisfy conservation laws alike those found in gauge theories.