Physical quark-number charges of dyons are determined, via a formula which generalizes that of Witten for the electric charge, in N = 2 supersymmetric theories with SU(2) x U(1)(Nf) gauge group. The quark numbers of the massless monopole at a nondegenerate singularity of the space of vacua turn out to vanish in all cases. A puzzle related to CP invariant cases is solved. Generalization of our results to SU(N-c) x U(1)(Nf) gauge theories is straightforward.
Quark number fractionalization in N=2 supersymmetric SU(2)xU(1)(Nf) gauge theories
KONISHI, KENICHI;
1998-01-01
Abstract
Physical quark-number charges of dyons are determined, via a formula which generalizes that of Witten for the electric charge, in N = 2 supersymmetric theories with SU(2) x U(1)(Nf) gauge group. The quark numbers of the massless monopole at a nondegenerate singularity of the space of vacua turn out to vanish in all cases. A puzzle related to CP invariant cases is solved. Generalization of our results to SU(N-c) x U(1)(Nf) gauge theories is straightforward.File in questo prodotto:
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