CLAS physics database search results Measurement E1M128 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 6.2660394 2.8204668 27 5.4384847 1.0308555 45 9.1530161 1.6373538 63 7.0639982 1.1922113 81 6.8602066 1.168108 98.99999 3.2435372 1.3050501 117 4.1639819 2.957298 135 4.4072037 0.86876488 153 5.84271 1.6930814 171 3.1601238 0.66084743