CLAS physics database search results Measurement E159M122 E1-6 V. Burkert 2001 theta(p) dsigma/d(−cos(theta_pr)) Data errors deg mcb/rad mcb/rad 9 3.10016 0.799688 27 3.5777 0.609232 45 3.37696 0.564736 63 3.93157 0.662321 81 4.22826 0.722576 99 5.56668 0.905683 117 5.9777 1.01555 135 5.23993 0.885827 153 4.03854 0.760545 171 4.69506 1.10523