CLAS physics database search results Measurement E169M78 g11 E. Golovach 2005 theta(pi+) dsigma/d(−cos(theta_pip)) Data errors rad mcb mcb 0.1122 36.5133 9.33339 0.336599 42.9807 5.51459 0.560999 45.1232 4.44578 0.785398 44.1531 4.21467 1.0098 39.5974 3.31258 1.2342 31.9482 2.67492 1.4586 27.3992 1.98879 1.683 23.8188 1.66501 1.9074 23.9341 1.34184 2.1318 19.7287 1.09206 2.35619 21.2214 1.38671 2.58059 23.4439 2.76174 2.80499 26.9556 8.71745 3.02939 31.1959 11.2503