CLAS physics database search results Measurement E169M50 g11 E. Golovach 2005 theta(pi-) dsigma/d(−cos(theta_pim)) Data errors rad mcb mcb 0.1122 92.5494 36.5808 0.336599 82.658 30.1728 0.560999 54.3734 15.5695 0.785398 42.7729 2.71785 1.0098 39.3561 1.192 1.2342 33.8832 0.696526 1.4586 28.4913 0.666199 1.683 26.9901 0.848349 1.9074 25.3036 0.599354 2.1318 24.9634 0.528507 2.35619 24.199 0.555427 2.58059 26.886 2.85578 2.80499 26.5279 3.67697 3.02939 25.0982 2.90069