CLAS physics database search results Measurement E62M539 E-94-005 CLAS experiment L. Elouadrhiri 2006 theta(pi+) dsigma/d(−cos(theta_pip)) Data errors deg mcbn/rad mcbn/rad 17.99999 0.94297469 0.44936672 54 1.5729042 0.33766109 90 2.3835692 0.36451882 126 2.124402 0.48712832 162 2.2590442 1.0703146