CLAS physics database search results Measurement E1M730 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 11.268404 1.5364656 27 11.667296 1.5094991 45 12.711708 1.3879913 63 12.847807 1.3153409 81 11.77418 0.61460042 98.99999 11.884293 0.59344536 117 10.65914 0.50882137 135 12.052527 1.193802 153 11.133388 1.0451567 171 8.960557 0.43194497