2002/08/03 by Masaki Yasue, Masaki Yasuè · 2 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Chiral symmetry breaking #Instanton #Massless particle #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #Quark #Seiberg duality #Spontaneous symmetry breaking #Superpotential #Symmetry breaking #hep-ph #hep-th
paper · pdf · doi:10.1016/s0370-2693(02)02465-6
published in Physics Letters B 543(3-4), 296-302 (Elsevier BV) · 6 pages, RevTex, To appear in Phys. Lett. B
arxiv created 2002/08/03 · openalex publication_date 2002/09/01 · arxiv updated 2015/06/26 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We construct an effective superpotential that describes dynamical flavor symmetry breaking in supersymmetric N=1 SO(Nc) theories with Nf-flavor quarks for Nf⩾Nc. Our superpotential induces spontaneous flavor symmetry breaking of SU(Nf) down to SO(Nc)×SU(Nf−Nc) as non-abelian residual groups and respects the anomaly-matching property owing to the appearance of massless composite Nambu–Goldstone superfields. In massive SO(Nc) theories, our superpotential provides holomorphic decoupling property and consistent vacuum structure with instanton effect if Nc−2 quarks remain massless. This superpotential may reflect the remnant of physics corresponding to N=2 SO(Nc) theories near the Chebyshev point, which also exhibits dynamical flavor symmetry breaking.