CLAS physics database search results Measurement E1M107 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 4.2186642 3.0649228 27 6.4211984 2.3395073 45 5.7052097 1.5371324 63 4.3454385 1.0025419 81 8.1322718 3.0014217 98.99999 4.8205414 0.82163811 117 4.3626771 1.1889398 135 4.2266016 0.68452251 153 7.4866843 3.3857968 171 4.4657326 0.62429148