CLAS physics database search results Measurement E1M813 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 9.056366 1.0441661 27 9.8740864 0.67166078 45 7.4192481 0.55037403 63 7.1894865 0.59541589 81 7.460506 0.51544756 98.99999 5.96417 0.46531668 117 6.2701292 0.65512449 135 7.3116732 1.0195811 153 8.0907383 0.74654293 171 12.201261 2.2286935