Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1992-05-28
Phys.Lett. B292 (1992) 93-98
Physics
High Energy Physics
High Energy Physics - Theory
12 pages, DFTT-19/92
Scientific paper
10.1016/0370-2693(92)90613-9
We find two different q-generalizations of Yang-Mills theories. The corresponding lagrangians are invariant under the q-analogue of infinitesimal gauge transformations. We explicitly give the lagrangian and the transformation rules for the bicovariant q-deformation of $SU(2) \times U(1)$. The gauge potentials satisfy q-commutations, as one expects from the differential geometry of quantum groups. However, in one of the two schemes we present, the field strengths do commute.
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