CLAS physics database search results Measurement E159M705 E1-6 V. Burkert 2001 theta(pi-) dsigma/d(−cos(theta_pim)) Data errors deg mcb/rad mcb/rad 9 0.660252 0.157713 27 0.926868 0.1577 45 0.701489 0.114461 63 0.550906 0.0860448 81 0.628405 0.105519 99 0.571362 0.113914 117 0.487016 0.0904515 135 0.483402 0.0789849 153 0.469698 0.0912525 171 0.455771 0.129875