CLAS physics database search results Measurement E1M449 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 19.32362 2.0289798 27 20.937099 1.3277245 45 17.697336 1.0545939 63 14.401879 0.738446 81 10.635473 0.53233546 98.99999 8.6164932 0.62897164 117 9.4276524 0.80970341 135 11.502986 1.1078687 153 10.201164 1.3695134 171 12.796333 2.4774392