14 July 2017
Universidade de Coimbra
Europe/Lisbon timezone

Spin 0 and spin 1 low-lying meson spectra within a chiral model with explicit symmetry breaking effects.

14 Jul 2017, 11:00
Universidade de Coimbra

Universidade de Coimbra

Sala de Conferências (sala F42 no 3º andar) Departamento de Física Faculdade de Ciências e Tecnologia Universidade de Coimbra Rua Larga P-3004 516 Coimbra


Jorge Morais (FCTUC / CFisUC)


An NJL-type three-flavor quark model with a complete set of explicit chiral symmetry breaking terms is extended to accommodate spin 1 mesons upon bosonization. The bosonized Lagrangian is analyzed up to quadratic order in the
meson fields. Analytic relations between spin 0 and spin 1 meson masses are obtained. The vector mesons are shown to play a major role in the model's predictions for the constituent quark masses. Finally, it is shown that the parameters can be adjusted to accurately reproduce the four low-lying meson nonets.

Primary author

Jorge Morais (FCTUC / CFisUC)


Presentation Materials