CLAS physics database search results Measurement E46M141 N/A 0 cos(theta_HS^pi+) dsigma/dcos(theta_HS^pi+) Data errors dimensionless mcb mcb -0.875 1.095183 0.310617 -0.625 0.539009 0.152686 -0.375 0.265375 0.079422 -0.125 0.306325 0.088573 0.125 0.303593 0.085463 0.375 0.298199 0.086494 0.625 0.300196 0.088284 0.875 0.307197 0.129645