CLAS physics database search results Measurement E46M140 N/A 0 cos(theta_HS^pi+) dsigma/dcos(theta_HS^pi+) Data errors dimensionless mcb mcb -0.875 1.480694 0.374048 -0.625 1.031739 0.276277 -0.375 0.477979 0.140524 -0.125 0.441786 0.122256 0.125 0.43999 0.12465 0.375 0.354219 0.101983 0.625 0.500645 0.135661 0.875 0.717346 0.292294