Chiral Symmetry Breaking with Scalar Confinement

Abstract

Spontaneous chiral symmetry breaking is accepted to occur in low energy hadronic physics, resulting in the several successful theorems of PCAC. On the other hand scalar confinement is suggested both by the spectroscopy of hadrons and by the string picture of confinement. However these two evidences are apparently conflicting, because chiral symmetry breaking requires a chiral invariant coupling to the quarks, say a vector coupling like in QCD. Here we reformulate the coupling of the quarks to the string, and we are able to comply with chiral symmetry breaking, using scalar confinement. The results are quite encouraging.

4 pages, 5 figures, contribution to the XXXVIIIth Rencontres de Moriond QCD and High Energy Hadronic Interactions

References in corpus (5)

• Non-perturbative Propagators, Running Coupling and Dynamical Quark Mass of Landau gauge QCD
• Analysis of a quenched lattice-QCD dressed-quark propagator
• Analytic proof that the Quark Model complies with the PCAC theorems
• Pseudoscalar mesons and their radial excitations from the Effective Chiral Lagrangian
• Comment on the proper QCD string dynamics in a heavy-light system

Cited by in corpus (8)

• The quark-gluon vertex in Landau gauge QCD: Its role in dynamical chiral symmetry breaking and quark confinement
• Confinement, quark mass functions, and spontaneous chiral symmetry breaking in Minkowski space
• The large degeneracy of excited hadrons and quark models
• Kurt Symanzik - a stable fixed point beyond triviality
• A quark model suggestion against Ds*(2317) and Ds*(2460) as chiral partners of standard Ds
• Mesons and tachyons with confinement and chiral restoration, and NA60
• Quark mass functions and pion structure in Minkowski space
• Confinement of Fermions in Tachyon Matter at Finite Temperature