CLAS physics database search results Measurement E159M302 E1-6 V. Burkert 2001 theta(p) dsigma/d(−cos(theta_pr)) Data errors deg mcb/rad mcb/rad 9 0.771531 0.2599 27 0.902452 0.203543 45 1.01877 0.186971 63 1.38468 0.254535 81 1.56878 0.253389 99 2.05149 0.318861 117 2.14034 0.340282 135 2.32987 0.387705 153 2.48737 0.445155 171 1.74875 0.354017