We show that in Anisotropic Chromo-Dynamics (ACD), a new approach to the dynamics of coloured, confined quarks, the π-meson is a qq̄-bound state very close to the Nambu-Goldstone boson of a spontaneously broken chiral symmetry. We calculate the “current” quark masses and obtain mu(0) ≈ md(0) ≈ 18 MeV, and ms(0) ≈ 123 Mev, in disagreement with the usual “strong PCAC” Ansatz.
Chirality And Its Breaking In A New Theory Of Hadrons
CASTORINA, PaoloPrimo
;
1982-01-01
Abstract
We show that in Anisotropic Chromo-Dynamics (ACD), a new approach to the dynamics of coloured, confined quarks, the π-meson is a qq̄-bound state very close to the Nambu-Goldstone boson of a spontaneously broken chiral symmetry. We calculate the “current” quark masses and obtain mu(0) ≈ md(0) ≈ 18 MeV, and ms(0) ≈ 123 Mev, in disagreement with the usual “strong PCAC” Ansatz.File in questo prodotto:
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