Is hypercharge U(1) in Weinberg's model redundant?
Abstract
The U1 × U1(loc) × SU2(loc) invariant Weinberg lagrangian can be reduced to a U1 × SU2(loc) invariant lagrangian without hypercharge group involving only a single left-handed Weyl spinor field and an isotriplet gauge vector field. Spontaneous symmetry breakdown is induced by condensation of fermion pairs. Charge appears simply as ``isospin charge''.
- Publication:
-
Physics Letters B
- Pub Date:
- July 1979
- DOI:
- 10.1016/0370-2693(79)90053-4
- Bibcode:
- 1979PhLB...84..336D