CLAS physics database search results Measurement E151M544 EG4 Xiaochao Zheng 2016 cos(theta_pi+) phi(pi+) A_UL Stat. error Syst. error degrees 0.65 102 0.6457 0.6721 0.0496 0.65 270 -0.7311 0.5256 0.0538 0.75 78 0.1875 0.663 0.0321 0.75 90 0.5047 0.6815 0.043 0.75 102 0.1854 0.6188 0.0321 0.75 294 0.7325 0.6679 0.0539 0.85 90 0.3057 0.6942 0.0354 0.85 102 -0.6823 0.4955 0.0514 0.85 222 -0.1852 0.6048 0.0321 0.85 234 0.3783 0.6526 0.0379 0.85 270 1.091 0.6479 0.0732 0.85 282 -0.4247 0.5525 0.0397 0.85 294 0.6684 0.6003 0.0507 0.95 234 -0.8213 0.4906 0.0585 0.95 294 -0.3764 0.5205 0.0378