CLAS physics database search results Measurement E159M590 E1-6 V. Burkert 2001 theta(p) dsigma/d(−cos(theta_pr)) Data errors deg mcb/rad mcb/rad 9 1.46955 0.357979 27 1.5239 0.300735 45 0.878541 0.167733 63 1.08755 0.213168 81 1.62843 0.302707 99 2.30889 0.397393 117 2.25374 0.423821 135 1.75393 0.331109 153 1.52131 0.328455 171 1.57629 0.375919