CLAS physics database search results Measurement E159M507 E1-6 V. Burkert 2001 theta(pi-) dsigma/d(−cos(theta_pim)) Data errors deg mcb/rad mcb/rad 9 1.70297 0.413912 27 1.5265 0.269647 45 1.39979 0.210748 63 1.15359 0.191184 81 1.11378 0.186035 99 0.794166 0.140244 117 0.652556 0.106452 135 0.657831 0.107462 153 0.655654 0.114844 171 0.76784 0.264653