Pion-nucleon octet channels
= Pion-nucleon octet channels
{title2=$\pi N\to\pi N,\eta_8N,K\Lambda,K\Sigma$}
For an initial <pion>-<nucleon> state and outgoing <meson octet>-<baryon octet> pair, conservation of <baryon number> and <strangeness> allows $\pi N$, $\eta_8N$, $K\Lambda$, and $K\Sigma$, subject to <electric charge> and production thresholds. Total <isospin> is $1/2$ or $3/2$; the $\eta_8N$ and $K\Lambda$ channels contain only $1/2$.