CLAS physics database search results Measurement E1M67 E93-006 CLAS experiment V. D. Burkert, M. Ripani 2003 theta(pi-) dsigma/d(−cos(theta_pim)) Stat. error dimensionless mcbn/rad mcbn/rad 9 5.0540886 1.1129011 27 5.5129457 1.1531826 45 6.7607527 1.7578362 63 2.8789909 0.41961557 81 4.4508405 0.81058544 98.99999 3.7819729 1.9052241 117 3.5712531 0.96771014 135 4.9731827 1.945681 153 7.810575 2.3951883 171 8.2145424 7.1845698