CLAS physics database search results Measurement E159M59 E1-6 V. Burkert 2001 theta(p) dsigma/d(−cos(theta_pr)) Data errors deg mcb/rad mcb/rad 9 1.0576 0.320337 27 1.43345 0.310899 45 1.11339 0.24883 63 1.63368 0.331056 81 2.00199 0.377898 99 2.15187 0.423086 117 2.57751 0.519077 135 3.10493 0.581127 153 3.08701 0.599128 171 2.15737 0.528293