Confining Flux Tubes in a Current Algebra Approach

Details Confining Flux Tubes in a Current Algebra Approach Confining Flux Tubes in a Current Algebra Approach

1994-09-19

arxiv.org/abs/hep-th/9409109v3

Phys.Rev.D51:3096-3107,1995

Physics

High Energy Physics

High Energy Physics - Theory

29 pages (REVTEX) plus 6 figures, two corrections in the final section and added references

Scientific paper

10.1103/PhysRevD.51.3096

We describe flux tubes and their interactions in a low energy sigma model induced by $SU({N_f}) \rightarrow SO({N_f})$ flavor symmetry breaking in $SO(N_c)$ QCD. Unlike standard QCD, this model allows gauge confinement to manifest itself in the low energy theory, which has unscreened spinor color sources and global $Z_2$ flux tubes. We construct the flux tubes and show how they mediate the confinement of spinor sources. We further examine the flux tubes' quantum stability, spectrum and interactions. We find that flux tubes are Alice strings, despite ambiguities in defining parallel transport. Furthermore, twisted loops of flux tube support skyrmion number, just as gauged Alice strings form loops that support monopole charge. This model, while phenomenologically nonviable, thus affords a perspective on both the dynamics of confinement and on subtleties which arise for global Alice strings.

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