CLAS physics database search results Measurement E19M29 E89-004 R. A. Schumacher 2005 cos(theta) Cx Data errors dimensionless dimensionless dimensionless -0.7 0.446 1.85 -0.4 0.933 1.03 -0.1 -1.616 1.587 0.2 -1.441 0.948 0.5 -0.975 0.507 0.8 0.587 0.413