CLAS physics database search results Measurement E62M731 E-94-005 CLAS experiment L. Elouadrhiri 2006 theta(pi+) dsigma/d(−cos(theta_pip)) Stat. error deg mcbn/rad mcbn/rad 17.99999 1.3484445 0.64095902 54 2.0696433 0.42402816 90 1.6608299 0.36031109 126 1.3636514 0.28556266 162 2.7750645 1.2693883