CLAS physics database search results Measurement E216M312 CLAS12 Run Group A Krishna Chandra 2018 psi(p) dsigma/dpsi_pr Stat. error Syst. error deg mcbn/rad mcbn/rad mcbn/rad 18 0.690966 0.0516511 0.09868759 54 0.57805 0.0236759 0.07334072 90 0.540012 0.0409507 0.04249108 126 0.588463 0.0398512 0.05261903 162 0.608914 0.0169736 0.04529064 198 0.615207 0.0183304 0.04603645 234 0.558597 0.0149654 0.04033799 270 0.561058 0.0208411 0.04362312 306 0.633605 0.0301304 0.05820524 342 0.613681 0.038605 0.09627748