Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2003-04-04
Europhys.Lett. 62 (2003) 677-683
Physics
High Energy Physics
High Energy Physics - Theory
6 pages, version to appear in Europhysics Letters
Scientific paper
10.1209/epl/i2003-00427-7
In the SO(N_c) gauge theory with N_f quarks for N_f=N_c-2, its instanton effects indicate the signal of dynamical flavor symmetry breakdown of SU(N_f) to SO(N_f), which is not described by the conventional "magnetic" degree's of freedom. It is argued that this breaking is well described by our effective superpotential consisting of "electric" quarks and gluons instead of monopoles of SO(N_c). The low-energy particles include the Nambu-Goldstone superfields associated with this breakdown. The proposed superpotential is found to exhibit the holomorphic decoupling property and the anomaly-matching property on a residual chiral U(1) symmetry.
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