CLAS physics database search results Measurement E159M606 E1-6 V. Burkert 2001 theta(pi-) dsigma/d(−cos(theta_pim)) Data errors deg mcb/rad mcb/rad 9 0.942706 0.224161 27 1.46669 0.275825 45 1.6466 0.267549 63 1.70815 0.260703 81 2.10742 0.33101 99 1.57458 0.265641 117 1.3947 0.23855 135 1.46873 0.253325 153 1.49157 0.268531 171 0.801643 0.199345