Speaker
Jorge Morais
(FCTUC / CFisUC)
Description
An NJL-type three-flavor quark model with a complete set of explicit
chiral symmetry breaking terms is extended to include vector and axial vector
effective interaction terms. A suitable bosonization procedure is implemented
and discussed. The bosonized Lagrangian is written up to quadratic order in the
bosonic fields and the role of the new interactions is analysed in detail. The
model's parameters are fitted to yield reasonable values to the four low-lying
spin 0 and spin 1 meson nonets' masses.
