CLAS physics database search results Measurement E1M259 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 9.6411009 3.0090368 27 9.7253923 3.2647462 45 5.1913872 0.95877415 63 4.4166102 0.91132826 81 6.3412113 1.0003922 98.99999 4.0362654 0.60302413 117 4.7094488 0.53452879 135 5.735754 1.3285253 153 5.2716193 1.3201642 171 3.1354055 0