{}^{,b}}{000 k_{0}^0 \pi^0} -  \frac{ k_{0} \kappa^0 \bar{\phi} \bar{\phi} {}^{,a} \bar{\phi} {}_{,a}{}_{,b} \bar{\phi} {}^{,b}}{00 k_{0}^0 \pi^0} + \frac{ k_{0} \kappa^0 \nu \bar{\phi} \bar{\phi} {}^{,a} \bar{\phi} {}_{,a}{}_{,b} \bar{\phi} {}^{,b}}{000 k_{0}^0 \pi^0} \nonumber \\      && -  \frac{ k_{0} \kappa^0 \