CLAS physics database search results Measurement E1M44 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 2.8207481 0.94249314 27 4.8174391 1.7679292 45 6.794188 2.4767039 63 7.6757293 1.5965484 81 5.6743774 1.3868268 98.99999 3.1262746 0.88338751 117 4.5904813 1.0253996 135 3.4622982 1.3357112 153 5.6908684 2.4301567 171 4.4185743 0