CLAS physics database search results Measurement E159M500 E1-6 V. Burkert 2001 theta(p) dsigma/d(−cos(theta_pr)) Data errors deg mcb/rad mcb/rad 9 0.300647 0.141682 27 0.528956 0.188729 45 0.699915 0.199552 63 0.888414 0.172971 81 0.937718 0.192957 99 1.27601 0.240097 117 1.47755 0.287299 135 1.37573 0.287451 153 1.33144 0.318785 171 1.18888 0.367544