CLAS physics database search results Measurement E1M226 E93-006 CLAS experiment V. D. Burkert, M. Ripani 2003 theta(pi+) dsigma/d(−cos(theta_pip)) Stat. error deg mcbn/rad mcbn/rad 9 4.1813617 0.94266558 27 7.5369177 1.8575393 45 7.0208406 1.9970458 63 6.9063773 1.4199098 81 4.4836669 0.71249664 98.99999 5.5651159 0.67720842 117 6.7507186 1.1102978 135 5.3733287 2.3979862 153 5.3473258 1.3642451 171 3.8201556 0