[en] Formulae for cross sections of γ¹²C(g.s.)→γ¹²C*(15.110) and anti γ¹²C(g.s.)→anti γ¹²C*(15.110) and for angular distributions and circular polarizations of the subsequent decay photons are derived in a model-independent (elementary-particle) approach. The results indicate that, granting validity of the isotriplet hypothesis which relates the isovector components of the hadronic neutral weak current to the hadronic charged weak polar and axial currents, the numerical predictions of these quantities are strikingly different between solutions A and B. (Auth.)