CLAS physics database search results Measurement E159M212 E1-6 V. Burkert 2001 theta(p) dsigma/d(−cos(theta_pr)) Data errors deg mcb/rad mcb/rad 9 3.50479 0.735497 27 3.24301 0.582046 45 2.2855 0.441148 63 2.19397 0.445213 81 2.75836 0.483119 99 3.5076 0.582565 117 3.72257 0.63597 135 4.6107 0.784975 153 5.88418 1.0041 171 6.46714 1.29534