CLAS physics database search results Measurement E1M81 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 4.5534492 1.1090782 27 5.1580768 1.8747165 45 6.1985178 1.4872497 63 5.5123482 1.2500592 81 4.449101 0.99550414 98.99999 3.3118556 0.67006457 117 3.601402 0.85654134 135 5.1927056 1.7118266 153 3.7736859 1.2194769 171 3.776397 1.7372549