CLAS physics database search results Measurement E159M374 E1-6 V. Burkert 2001 theta(p) dsigma/d(−cos(theta_pr)) Data errors deg mcb/rad mcb/rad 9 2.62154 0.529655 27 2.1262 0.351122 45 1.85888 0.310435 63 1.75992 0.315605 81 2.67798 0.422405 99 3.36966 0.504583 117 3.41945 0.512877 135 3.0118 0.486126 153 3.32689 0.627206 171 2.3325 0.466746