CLAS physics database search results Measurement E159M860 E1-6 V. Burkert 2001 theta(p) dsigma/d(−cos(theta_pr)) Stat. error deg mcb/rad mcb/rad 9 1.04731 0.330218 27 1.19322 0.292098 45 0.909159 0.260394 63 0.778487 0.191262 81 0.740415 0.157724 99 1.17682 0.222078 117 1.18609 0.217588 135 1.21793 0.238085 153 1.33813 0.314626 171 1.58548 0.383007