CLAS physics database search results Measurement E159M239 E1-6 V. Burkert 2001 theta(p) dsigma/d(−cos(theta_pr)) Data errors deg mcb/rad mcb/rad 9 0.328857 0.104626 27 0.551166 0.122992 45 0.39219 0.0894471 63 0.613921 0.117791 81 0.837514 0.148557 99 0.829293 0.136544 117 0.996622 0.160986 135 1.06528 0.198611 153 0.948311 0.180528 171 0.867933 0.184613