CLAS physics database search results Measurement E159M869 E1-6 V. Burkert 2001 theta(p) dsigma/d(−cos(theta_pr)) Data errors deg mcb/rad mcb/rad 9 0.852564 0.322257 27 1.15589 0.296431 45 0.587781 0.156626 63 0.957494 0.281058 81 0.896457 0.197836 99 1.10309 0.195364 117 1.18786 0.216224 135 1.33012 0.245747 153 1.33425 0.314419 171 1.42485 0.48732