CLAS physics database search results Measurement E159M347 E1-6 V. Burkert 2001 theta(p) dsigma/d(−cos(theta_pr)) Data errors deg mcb/rad mcb/rad 9 3.13911 0.705391 27 2.91114 0.455948 45 2.77802 0.397116 63 2.66991 0.387016 81 3.81849 0.571738 99 4.11267 0.572682 117 3.93922 0.560834 135 3.37191 0.481741 153 3.19061 0.550067 171 2.53639 0.512939