CLAS physics database search results Measurement E159M435 E1-6 V. Burkert 2001 theta(pi-) dsigma/d(−cos(theta_pim)) Data errors deg mcb/rad mcb/rad 9 3.26752 0.554084 27 2.64449 0.389565 45 2.54756 0.377637 63 2.30664 0.339467 81 2.15299 0.3128 99 1.82278 0.2682 117 2.01622 0.302455 135 1.91679 0.309029 153 2.14369 0.353771 171 2.07519 0.364959