CLAS physics database search results Measurement E159M1066 E1-6 V. Burkert 2001 theta(pi+) dsigma/d(−cos(theta_pip)) Data errors deg mcb/rad mcb/rad 9 0.462318 0.144332 27 0.802323 0.213777 45 0.797564 0.218989 63 1.04527 0.233616 81 0.859941 0.157662 99 0.91626 0.188529 117 0.849749 0.185133 135 0.626967 0.207652 153 0.59214 0.519247 171 0.708492 0.572528