CLAS physics database search results Measurement E169M86 g11 E. Golovach 2005 theta(pi-) dsigma/d(−cos(theta_pim)) Data errors rad mcb mcb 0.1122 78.5656 25.8778 0.336599 74.7008 22.8468 0.560999 50.7087 12.0434 0.785398 41.0859 1.74787 1.0098 36.2783 1.11164 1.2342 30.5167 0.640173 1.4586 24.6664 0.497107 1.683 22.0282 0.501751 1.9074 20.3181 0.343899 2.1318 19.0524 0.374476 2.35619 17.5932 0.412953 2.58059 17.3476 1.23438 2.80499 17.6117 2.79077 3.02939 16.0244 2.355