β Scribed by M.K Volkov
No coin nor oath required. For personal study only.
On the basis of a effective "superconductivity"-type four-quark interaction, phenomenological Lagrangians are obtained for interactions of scalar, pseudoscalar, vector. and axial vector meson nonets. The Lagrangians include mass terms breaking chiral and U(3) invariance and corresponding to the quark masses m,, # md # m,. It is shown that upon introducing boson fields the masses of current quarks in the initial Lagrangian are replaced by the masses of constituent quarks in the phenomenological boson Lagrangians. Estimates of these masses are presented. Electromagnetic interactions are considered, and the vector dominance model is derived. The widths of various meson decays are calculated.
π SIMILAR VOLUMES
We study symmetry breaking via quark mass differences in a relativistic quark model where mesons are built from heavy (m B 3 GeV) spin -$ quarks and antiquarks. The meson (squared-)mass differences are linearly related to the number of strange, charmed, etc. quarks in the mesons. We show that the pr
We prove asymptotic completeness for the scattering of two non-relativistic spinless mesons, when each meson is composed of a quark and antiquark bound together by a confining potential, so that free quarks may not result from the collision. 20