CLAS physics database search results Measurement E169M42 g11 E. Golovach 2005 theta(pi+) dsigma/d(−cos(theta_pip)) Data errors rad mcb mcb 0.1122 44.8265 13.9493 0.336599 44.5434 6.40056 0.560999 46.086 4.54236 0.785398 49.0945 4.39242 1.0098 46.2902 3.89638 1.2342 37.2169 2.76113 1.4586 32.9649 2.20488 1.683 30.8387 1.76565 1.9074 31.3166 1.75218 2.1318 26.1224 1.63347 2.35619 29.4785 1.65244 2.58059 31.3972 4.92875 2.80499 30.1162 8.59295 3.02939 29.7272 8.55727