CLAS physics database search results Measurement E1M421 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 17.792814 2.0086207 27 18.206236 1.4522214 45 16.030706 0.92324847 63 13.129882 0.80412674 81 10.376843 0.56851369 98.99999 8.5485802 0.62414229 117 8.3298645 0.52708608 135 11.25793 1.2156628 153 9.7502155 1.2521505 171 10.016872 1.4180752