CLAS physics database search results Measurement E159M94 E1-6 V. Burkert 2001 theta(pi+) dsigma/d(−cos(theta_pip)) Data errors deg mcb/rad mcb/rad 9 2.76172 0.527528 27 2.69944 0.436655 45 2.50733 0.41044 63 3.25686 0.510915 81 2.70434 0.400128 99 3.11173 0.468161 117 2.91349 0.450285 135 1.6702 0.989247 153 1.01025 0.674738 171 1.10918 0.963135