CLAS physics database search results Measurement E21M9 g1c CLAS experiment K. Hicks 2006 cos(theta_K*) dsigma/dcos(theta K*) Data errors dimensionless nb nb -0.75 64.7 18.4 -0.35 39.5 13.4 -0.05 22.6 7.5 0.25 20.1 6.2 0.55 18.2 5.7 0.8 79 21.1