Fermionic instanton zero modes in models with spontaneous symmetry breaking and broken custodial SU(2) symmetry

In an SU L(2)-Higgs model with one chirally coupled flavor, fermioniz zero modes are constructed in the background of an instanton when there is no custodial global SU(2) symmetry to ensure degenerate fermion masses. The generalization to more fermion flavors and colors is straightforward.

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Bibliographic Details
Published in:Physics letters. B 1992-09, Vol.291 (1), p.92-96
Main Author: Kastening, Boris
Format: Article
Language:English
Subjects:
Classical and quantum physics: mechanics and fields
Exact sciences and technology
Physics
Theory of quantized fields
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Description
Summary:In an SU L(2)-Higgs model with one chirally coupled flavor, fermioniz zero modes are constructed in the background of an instanton when there is no custodial global SU(2) symmetry to ensure degenerate fermion masses. The generalization to more fermion flavors and colors is straightforward.
ISSN:0370-2693
1873-2445
DOI:10.1016/0370-2693(92)90124-M