CLAS physics database search results Measurement E1M610 E93-006 CLAS experiment V. D. Burkert, M. Ripani 2003 theta(pi+) dsigma/d(−cos(theta_pip)) Stat. error deg mcbn/rad mcbn/rad 9 6.5695868 1.8165283 27 6.8530469 0.97930199 45 9.4242849 0.97837168 63 9.6581469 0.71708786 81 8.3429966 0.67225033 98.99999 7.5081811 0.63160348 117 6.443675 0.42170575 135 5.3083706 0.59079039 153 7.1321878 1.0014824 171 5.8904104 0.67147851