A model for chiral symmetry breaking in QCD
1984; Elsevier BV; Volume: 237; Issue: 1 Linguagem: Inglês
10.1016/0550-3213(84)90015-4
ISSN1873-1562
AutoresJan Govaerts, Jeffrey E. Mandula, J. Weyers,
Tópico(s)High-Energy Particle Collisions Research
ResumoA recently proposed model for dynamical breaking of chiral symmetry in QCD is extended and developed for the calculation of pion and chiral symmetry breaking parameters. The pion is explicitly realized as a massless Goldstone boson and as a bound state of the constituent quarks. We compute, in the limit of exact chiral symmetry, MQ, the constituent quark mass ƒπ the pion decay coupling, 〈uu〉, the constituent quark loop density, μπ2/mq, the ratio of the Goldstone boson mass squared to the bare quark mass, and 〈r2〉π, the pion electromagnetic charge radius squared.
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