CLAS physics database search results Measurement E80M4 e1b-c analysis C. Hadjidakis, M. Guidal 0 Q^2 sigma_L Data errors GeV^2 mcbn mcbn 1.57 0.77 0.19 1.7 1.33 0.2 1.83 0.96 0.24 1.96 1.18 0.29 2.09 0.81 0.17 2.22 1.16 0.24