CLAS physics database search results Measurement E46M156 N/A 0 cos(theta_HS^pi+) dsigma/dcos(theta_HS^pi+) Data errors dimensionless mcb mcb -0.875 0.679193 0.185062 -0.625 0.328248 0.1115 -0.375 0.214303 0.083405 -0.125 0.158682 0.051377 0.125 0.116414 0.041885 0.375 0.147673 0.058469 0.625 0.19594 0.078644 0.875 0.375035 0.152441