CLAS physics database search results Measurement E159M383 E1-6 V. Burkert 2001 theta(p) dsigma/d(−cos(theta_pr)) Data errors deg mcb/rad mcb/rad 9 2.04904 0.416073 27 2.33243 0.403574 45 1.61023 0.252939 63 1.74712 0.33185 81 2.65426 0.442818 99 3.2811 0.530039 117 3.11018 0.494901 135 2.5871 0.408826 153 2.82297 0.500266 171 3.21203 0.60376