CLAS physics database search results Measurement E169M68 g11 E. Golovach 2005 theta(pi-) dsigma/d(−cos(theta_pim)) Data errors rad mcb mcb 0.1122 84.2229 31.2851 0.336599 77.4198 26.6316 0.560999 50.891 12.8456 0.785398 40.7519 2.07682 1.0098 37.1604 1.32951 1.2342 30.959 0.827994 1.4586 25.7857 0.654341 1.683 23.2864 0.718339 1.9074 21.2329 0.508438 2.1318 20.3456 0.49252 2.35619 19.3314 0.53033 2.58059 21.8086 2.31393 2.80499 20.6477 3.23994 3.02939 18.4721 2.4813