The symmetry associated with weak isospin is SU (2) and requires gauge bosons with integral T_3 (and) to mediate transformations between fermions with half-integer weak isospin charges.
The symmetry associated with weak isospin is SU (2). The symmetry associated with weak isospin requires gauge bosons with integral T_3 (and). This is to mediate transformations between fermions with half-integer weak isospin charges.