Chiral Multiplets of Large-N Ground State Baryons

Abstract

I show that in the large-N limit the ground state baryons with helicity h fall into an ((N-2h)/4,(N+2h)/4) irreducible representation of SU(2)XSU(2). This representation determines the absolute normalization of the ground state baryon axial vector couplings at large-N. Results map precisely to (spin-flavor) SU(4) results. For instance, I find g_A =(N+2)/3. As a consequence of this multiplet structure, chiral symmetry forbids pion transitions between the ground state baryons and other baryon towers in the large-N limit.

6 pages TeX and mtexsis.tex

References in corpus (3)

• $1/N_c$ Expansion for Excited Baryons
• Excited Baryons Phenomenology from Large-$N_c$ QCD
• Strong Interactions at Low Energy

Cited by in corpus (6)

• Parity Doubling Among the Baryons
• Broken Chiral Symmetry on a Null Plane
• The Role of the Roper in QCD
• A Conjecture about Hadrons
• Bosonic Operator Methods for the Quark Model
• High Energy Theorems at Large-N