CLAS physics database search results Measurement E159M203 E1-6 V. Burkert 2001 theta(p) dsigma/d(−cos(theta_pr)) Data errors deg mcb/rad mcb/rad 9 2.87557 0.626264 27 3.3603 0.590489 45 2.2095 0.401368 63 2.05672 0.428854 81 3.00212 0.521073 99 4.02311 0.665279 117 4.14494 0.693027 135 4.23423 0.707535 153 5.30151 0.918167 171 7.29341 1.49093