CLAS physics database search results Measurement E151M345 EG4 Xiaochao Zheng 2016 cos(theta_pi+) phi(pi+) A_UL Data errors Systematic errors degrees 0.65 234 0.6166 0.715 0.0486 0.65 246 0.7707 0.738 0.0564 0.65 258 0.4124 0.7041 0.0394 0.75 102 0.4821 0.7647 0.0423 0.75 114 -0.2385 0.7047 0.0334 0.75 138 -0.6246 0.6733 0.0489 0.75 162 -0.1534 0.7538 0.0315 0.75 234 -1.2766 0.5323 0.0845 0.75 246 0.4719 0.6016 0.0419 0.75 270 0.5049 0.6642 0.0433 0.85 114 -0.6175 0.6934 0.0486 0.85 138 -1.0599 0.6459 0.0722 0.85 246 0.0129 0.5896 0.03 0.85 258 0.3055 0.5911 0.0355 0.85 270 0.2313 0.5875 0.0332 0.95 78 -0.8846 0.5589 0.0625 0.95 90 -0.185 0.5724 0.0321 0.95 270 -0.5313 0.5792 0.0445 0.95 282 -0.5574 0.5255 0.0457 0.55 246 1.8306 1.4157 0.1142 0.55 258 -0.1912 0.9934 0.0321 0.55 270 0.934 1.1909 0.0637 0.65 246 1.7294 1.4432 0.1084 0.65 258 -0.714 0.661 0.0524 0.75 126 -0.434 0.9421 0.0398 0.75 222 0.2152 1.0313 0.0327 0.75 234 0.198 1.0201 0.0323 0.75 246 -0.5827 0.6196 0.0462 0.75 258 -1.3896 0.4683 0.0889 0.75 270 0.603 0.9836 0.0471 0.85 114 -0.6819 0.8946 0.0509 0.85 150 -0.8889 0.764 0.0614 0.85 270 -0.3238 0.7283 0.0358 0.85 282 0.2799 0.9578 0.0344 0.85 294 1.8991 1.2256 0.1182