CLAS physics database search results Measurement E151M1116 EG4 Xiaochao Zheng 2016 cos(theta_pi+) phi(pi+) A_UL Stat. error Syst. error degrees 0.35 270 0.1676 0.8375 0.0324 0.55 90 -0.1962 0.6419 0.0333 0.55 102 -1.199 0.5771 0.0926 0.55 126 -0.4424 0.826 0.0441 0.55 270 1.4865 0.9491 0.1127 0.55 294 0.6927 0.8525 0.0588 0.55 306 -0.2055 0.6982 0.0336 0.65 90 -0.6192 0.6927 0.0543 0.65 102 -0.4447 0.6389 0.0442 0.65 114 0.0265 0.8833 0.0301 0.65 126 -1.2861 0.6334 0.0987 0.65 210 1.5353 1.008 0.1162 0.65 234 0.6432 0.8336 0.0558 0.65 246 1.5653 0.8754 0.1183 0.65 306 0.4593 0.7857 0.045 0.75 66 0.2772 0.787 0.0362 0.75 78 -0.5721 0.5382 0.0515 0.75 102 -1.2204 0.5301 0.0941 0.75 114 0.5379 0.7575 0.0495 0.75 126 -0.5968 0.7278 0.0529 0.75 210 -0.191 0.6922 0.0331 0.75 222 1.0811 0.8731 0.0845 0.75 234 0.2038 0.6269 0.0335 0.75 246 0.707 0.8112 0.0598 0.75 282 1.5465 0.9181 0.1169 0.75 294 0.3175 0.7482 0.0379 0.85 66 -0.2937 0.5435 0.0369 0.85 78 -0.3554 0.4835 0.0397 0.85 90 -0.2769 0.6473 0.0362 0.85 198 1.0573 0.8124 0.0829 0.85 210 1.619 0.9625 0.1221 0.85 222 -0.1032 0.6287 0.0309 0.85 234 0.5328 0.5829 0.0492 0.85 246 0.6307 0.5791 0.055 0.85 258 0.4116 0.6346 0.0425 0.85 270 0.6845 0.8384 0.0583 0.95 78 -0.7776 0.5994 0.0643 0.95 174 -0.7055 0.7027 0.0597 0.95 186 1.3371 0.9515 0.1022 0.95 210 0.6839 0.7287 0.0583 0.95 222 -0.1891 0.6752 0.033 0.95 234 1.4754 0.6689 0.1119 0.95 246 0.2575 0.5844 0.0354 0.95 258 0.7509 0.644 0.0625 0.95 270 -0.2634 0.5377 0.0356 0.95 282 -0.099 0.5472 0.0309 0.95 294 -0.6484 0.5154 0.0561 0.95 306 0.2116 0.7316 0.0338