CLAS physics database search results Measurement E159M518 E1-6 V. Burkert 2001 theta(p) dsigma/d(−cos(theta_pr)) Data errors deg mcb/rad mcb/rad 9 0.431739 0.266706 27 0.66209 0.16924 45 0.665659 0.144717 63 0.915258 0.175504 81 1.07505 0.219842 99 1.43887 0.28624 117 1.54205 0.32497 135 1.61594 0.331544 153 1.38413 0.302364 171 1.63917 0.477268