CLAS physics database search results Measurement E159M779 E1-6 V. Burkert 2001 theta(p) dsigma/d(−cos(theta_pr)) Data errors deg mcb/rad mcb/rad 9 1.38656 0.342283 27 1.78251 0.356041 45 1.25769 0.264448 63 1.46399 0.256742 81 1.83652 0.35008 99 2.02656 0.384613 117 1.88454 0.325355 135 1.56705 0.289396 153 1.30167 0.286225 171 1.09444 0.346233