CLAS physics database search results Measurement E159M867 E1-6 V. Burkert 2001 theta(pi-) dsigma/d(−cos(theta_pim)) Data errors deg mcb/rad mcb/rad 9 0.869102 0.2272 27 1.2112 0.220319 45 1.02428 0.174264 63 1.10146 0.185612 81 1.0999 0.17838 99 1.09747 0.192023 117 0.870023 0.167217 135 0.85467 0.165353 153 0.914863 0.206042 171 0.61341 0.198873