$\eta$

${\pi }_1^{+}$

${\pi }_2^{+}$

${\pi }_1^{-}$

${\pi }_2^{-}$

${\pi }_1^{+}$

${\left({\pi }_1^{+},{\pi }_1^{+}\right)}_{\oplus }^R$

${\left({\pi }_1^{+},{\pi }_2^{+}\right)}_{\oplus }$

${\left({\pi }_1^{+},{\pi }_1^{-}\right)}_{\oplus }$

${\left({\pi }_1^{+},{\pi }_2^{-}\right)}_{\oplus }$

${\pi }_2^{+}$

${\left({\pi }_2^{+},{\pi }_1^{+}\right)}_{\oplus }^B$

${\left({\pi }_2^{+},{\pi }_2^{+}\right)}_{\oplus }^R$

${\left({\pi }_2^{+},{\pi }_1^{-}\right)}_{\oplus }$

${\left({\pi }_2^{+},{\pi }_2^{-}\right)}_{\oplus }$

${\pi }_1^{-}$

${\left({\pi }_1^{-},{\pi }_1^{+}\right)}_{\oplus }^G$

${\left({\pi }_1^{-},{\pi }_2^{+}\right)}_{\oplus }^Y$

${\left({\pi }_1^{-},{\pi }_1^{-}\right)}_{\oplus }^R$

${\left({\pi }_1^{-},{\pi }_2^{-}\right)}_{\oplus }$

${\pi }_2^{-}$

${\left({\pi }_2^{-},{\pi }_1^{+}\right)}_{\oplus }^Y$

${\left({\pi }_2^{-},{\pi }_2^{+}\right)}_{\oplus }^G$

${\left({\pi }_2^{-},{\pi }_1^{-}\right)}_{\oplus }^B$

${\left({\pi }_2^{-},{\pi }_2^{-}\right)}_{\oplus }^R$