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.
Autori interni: | |
Autori: | Carlino G; Konishi K; Terao H |
Titolo: | Quark number fractionalization in N=2 supersymmetric SU(2)xU(1)(Nf) gauge theories |
Anno del prodotto: | 1998 |
Appare nelle tipologie: | 1.1 Articolo in rivista |
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