Model for Lepton, Nucleon, and Pion Interactions
1972; American Physical Society; Volume: 6; Issue: 4 Linguagem: Inglês
10.1103/physrevd.6.1190
ISSN1538-4500
Autores Tópico(s)Black Holes and Theoretical Physics
ResumoAn $\mathrm{SU}{(2)}_{L}\ifmmode\times\else\texttimes\fi{}{Y}_{L}$ gauge theory is studied. The purely leptonic part is the Weinberg theory. The purely hadronic part is a form of the SU(2) \ifmmode\times\else\texttimes\fi{} SU(2) $\ensuremath{\sigma}$ model. It is shown, following the suggestion of Weinberg, that with a cross-coupling term the spontaneous breaking of the lepton symmetry induces a spontaneous breaking of the SU(2) \ifmmode\times\else\texttimes\fi{} SU(2) hadron symmetry, resulting in a partially-conserved-axial-vector-current condition for axial-vector diver-gences and pions which are Goldstone-Nambu particles in an appropriate limit.
Referência(s)