2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/43360For the " t --> W b " decay mode, an intensity-ratio equivalence-theorem for two Lorentz-invariant couplings is shown to be related to symmetries of tWb-transformations. Explicit tWb-transformations, A_{+}=M A_{SM}, P A_{SM}, B A_{SM} relate the four standard model's helicity amplitudes and those in the case of an additional " t_R --> b_L " weak-moment of relative strength " Lambda_{+} =E_W /2 = 53 GeV ". Two commutator plus anti-commutator symmetry algebras are generated from M, P, B. These transformations enable a characterization of the associated mass scales.20 pages, one "post-script" tableHigh Energy Physics - Phenomenologytext