['The', 'three', 'point', 'vector', '-', 'pseudo', 'scalar', 'interaction', 'is', 'given', 'by', '(', '11)ih4〈Vμ(P∂μP−∂μPP', ')', '〉', ',', 'where', 'h', 'stands', 'for', 'the', 'vector', '-', 'pseudoscalar', 'coupling', '.']