\[(p_{\pm}^{2}-p_{\mp}^{2})R_{J}\left(x^{2},y^{2},z^{2},p^{2}\right)=2(p_{\pm}^{%
2}-a^{2})R_{J}\left(a^{2},z_{+}^{2},z_{-}^{2},p_{\pm}^{2}\right)-3R_{F}\left(x%
^{2},y^{2},z^{2}\right)+3R_{C}\left(z^{2},p^{2}\right),\]