CLAS physics database search results Measurement E169M132 g11 E. Golovach 2005 theta(pi+) dsigma/d(−cos(theta_pip)) Data errors rad mcb mcb 0.1122 45.8063 9.71238 0.336599 48.762 5.32756 0.560999 47.2898 3.64643 0.785398 43.7287 3.60346 1.0098 37.2181 2.86172 1.2342 27.0722 2.32575 1.4586 21.2061 1.73174 1.683 17.8796 1.40317 1.9074 17.8246 1.15263 2.1318 17.2052 1.04543 2.35619 17.2533 1.0113 2.58059 19.6747 1.61408 2.80499 28.4941 10.4803 3.02939 34.1375 13.3574