CLAS physics database search results Measurement E169M141 g11 E. Golovach 2005 theta(pi+) dsigma/d(−cos(theta_pip)) Data errors rad mcb mcb 0.1122 46.5621 9.41236 0.336599 49.6231 5.04443 0.560999 48.4339 3.51482 0.785398 43.8838 3.3455 1.0098 36.2439 2.52096 1.2342 27.2495 2.28691 1.4586 20.611 1.70374 1.683 17.3251 1.3584 1.9074 17.5696 1.11527 2.1318 16.8102 1.06158 2.35619 16.6057 0.982434 2.58059 19.5283 1.55974 2.80499 27.7265 10.2311 3.02939 33.9246 13.3081