Production of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>χ</mml:mi></mml:math>charmonium via 300-GeV/<i>c</i>pion and proton interactions on a lithium target

We present a measurement and comparison of the ${\ensuremath{\chi}}_{c1}$ and ${\ensuremath{\chi}}_{c2}$ production cross sections determined from interactions of 300-GeV/c ${\ensuremath{\pi}}^{\ifmmode\pm\else\textpm\fi{}}$ and $p$ with a Li target. We find $\frac{{\ensuremath{\chi}}_{c1}}{{\ensuremath{\chi}}_{c2}}$ production ratios of $0.52_{\ensuremath{-}0.27}^{}{}_{}{}^{+0.57}$ and $0.08_{\ensuremath{-}0.15}^{}{}_{}{}^{+0.25}$ from reactions induced by ${\ensuremath{\pi}}^{\ifmmode\pm\else\textpm\fi{}}$ and $p$, respectively.