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Circumventing the no-go theorem in noncommutative gauge field theory. (English) Zbl 1246.81394

Summary: Stringent restrictions for model building are imposed by a no-go theorem in noncommutative gauge field theory. Circumventing this theorem is crucial for the construction of realistic models of particle interactions. To this end, the noncommutative construction of tensor representations of gauge groups using half-infinite Wilson lines is extended to allow for gauge groups consisting of an arbitrary number of \(U_{\ast }(N)\) factors. This as well allows representations other than the ones permitted by the no-go theorem.

MSC:

81T75 Noncommutative geometry methods in quantum field theory
81T13 Yang-Mills and other gauge theories in quantum field theory

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