CLAS physics database search results Measurement E169M23 g11 E. Golovach 2005 theta(pi-) dsigma/d(−cos(theta_pim)) Data errors rad mcb mcb 0.1122 88.9652 34.1046 0.336599 80.2905 28.5179 0.560999 58.4486 15.9677 0.785398 53.3054 3.63836 1.0098 50.5582 1.51941 1.2342 42.1312 1.12932 1.4586 35.4189 1.05304 1.683 31.3469 0.990553 1.9074 29.3507 1.02376 2.1318 28.7475 0.924616 2.35619 28.3838 1.38902 2.58059 30.0604 3.73994 2.80499 29.3556 3.33293 3.02939 29.7439 3.37105