CLAS physics database search results Measurement E216M846 CLAS12 Run Group A Krishna Chandra 2018 theta(p) dsigma/d(−cos(theta_pr)) Stat. error Syst. error deg mcbn/rad mcbn/rad mcbn/rad 9 0.216247 0.0263368 0.02741013 27 0.213642 0.0182782 0.02839403 45 0.167168 0.0162412 0.02151664 63 0.191465 0.0108795 0.02007571 81 0.279365 0.0222731 0.02621185 99 0.373447 0.0275265 0.03081804 117 0.393781 0.0220067 0.08326318 135 0.42073 0.0329587 0.0395375 153 0.383928 0.0292018 0.03367556 171 0.49248 0.05574 0.04495447