CLAS physics database search results Measurement E169M15 g11 E. Golovach 2005 theta(pi+) dsigma/d(−cos(theta_pip)) Data errors rad mcb mcb 0.1122 45.7238 14.5082 0.336599 47.3835 5.90409 0.560999 49.7674 5.26516 0.785398 54.0294 5.62099 1.0098 49.6071 4.72594 1.2342 42.9247 3.31529 1.4586 39.1546 2.96785 1.683 36.6805 2.52116 1.9074 34.1672 2.13144 2.1318 30.7213 1.78851 2.35619 35.6425 2.20212 2.58059 37.844 6.75325 2.80499 35.3074 9.31992 3.02939 34.9457 9.04798