CLAS physics database search results Measurement E46M146 N/A 0 cos(theta_HS^pi+) dsigma/dcos(theta_HS^pi+) Data errors dimensionless mcb mcb -0.875 1.302238 0.341457 -0.625 0.578687 0.171409 -0.375 0.25585 0.08786 -0.125 0.304106 0.088097 0.125 0.296545 0.087683 0.375 0.254819 0.077113 0.625 0.320239 0.090691 0.875 0.390906 0.174123