CLAS physics database search results Measurement E1M670 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 7.3112235 1.5265696 27 10.920647 1.503232 45 9.5324287 1.2564415 63 9.1925545 0.91781652 81 7.6573939 0.44503421 98.99999 7.654202 0.42922607 117 7.287478 0.36851829 135 7.2076259 0.44295254 153 10.146447 1.4931929 171 7.3605881 0.95589381