CLAS physics database search results Measurement E151M1865 EG4 Xiaochao Zheng 2016 cos(theta_pi+) phi(pi+) A_LL Stat. error Syst. error degrees 0.25 294 0.48 0.8839 0.0418 0.35 78 -0.4843 0.8601 0.042 0.35 270 -0.5519 0.8759 0.0449 0.35 282 1.1126 0.9314 0.0738 0.45 66 0.1278 0.976 0.031 0.45 78 0.3175 0.8778 0.0356 0.45 270 0.2623 0.8531 0.034 0.45 282 -1.0763 0.7493 0.0718 0.55 78 -0.0481 0.9684 0.0301 0.55 114 2.7468 2.7468 0.1691 0.55 126 0.7849 0.956 0.0562 0.55 138 0.2564 0.8857 0.0338 0.55 234 -0.4541 0.9039 0.0407 0.55 258 0.3243 0.9452 0.0359 0.55 270 0.2825 0.8906 0.0345 0.55 282 -0.1066 0.8657 0.0307 0.65 114 -0.3017 0.7678 0.0351 0.65 126 -1.5295 0.7643 0.0974 0.65 138 0.411 0.8582 0.039 0.65 198 -0.3411 0.9091 0.0364 0.65 210 0.2816 0.8955 0.0345 0.65 222 -0.9447 0.7578 0.0646 0.65 234 -0.417 0.8087 0.0392 0.65 282 -0.9897 0.8576 0.0671 0.65 294 1.7957 0.6702 0.1129 0.75 114 0.2895 0.9429 0.0348 0.75 126 0.2901 0.7287 0.0348 0.75 138 -1.6551 0.8849 0.1047 0.75 150 -1.8492 0.7722 0.116 0.75 210 0.39 0.7538 0.0382 0.75 222 -1.2046 0.6736 0.0789 0.75 234 0.2933 0.6787 0.0349 0.75 246 0.9064 0.75 0.0626 0.75 282 0.097 0.6399 0.0306 0.75 294 0.2817 0.6739 0.0345 0.85 102 0.4522 0.7868 0.0406 0.85 114 0.3835 0.8792 0.0379 0.85 198 0.551 0.9478 0.0449 0.85 210 -1.3666 0.6935 0.0881 0.85 222 -1.11 0.7315 0.0736 0.85 234 -0.5283 0.6072 0.0439 0.85 246 0.7476 0.6985 0.0543 0.95 114 -0.6789 0.8555 0.0509 0.95 222 -0.7869 0.717 0.0563 0.95 246 0.2862 0.8069 0.0347