CLAS physics database search results Measurement E216M664 CLAS12 Run Group A Krishna Chandra 2018 theta(pi-) dsigma/d(−cos(theta_pim)) Stat. error Syst. error deg mcbn/rad mcbn/rad mcbn/rad 9 0.374628 0.0473651 0.05789232 27 0.332857 0.0282771 0.03669936 45 0.323751 0.0233302 0.02944073 63 0.263601 0.0215649 0.02362275 81 0.255515 0.0222353 0.02041377 99 0.201466 0.015214 0.01933197 117 0.241893 0.0291989 0.02388515 135 0.217142 0.0188078 0.02351344 153 0.213811 0.0161932 0.02066706 171 0.239736 0.044819 0.06304429