CLAS physics database search results Measurement E151M2386 EG4 Xiaochao Zheng 2016 cos(theta_pi+) phi(pi+) A_LL Stat. error Syst. error degrees 0.65 54 1.8242 0.9492 0.1356 0.65 114 -0.6752 0.9696 0.0574 0.65 186 -1.1208 1.0925 0.0866 0.65 198 -0.5675 1.0086 0.0509 0.65 222 -0.2296 1.148 0.0343 0.65 282 -1.3215 0.7884 0.1004 0.65 294 1.8216 0.9449 0.1355 0.75 102 -0.8846 0.948 0.0708 0.75 186 0.6203 1.0296 0.0541 0.75 198 -1.5903 0.8953 0.1192 0.75 210 0.1271 0.8834 0.0314 0.75 222 1.4468 0.9596 0.1091 0.75 234 0.1645 0.9765 0.0323 0.75 270 1.1974 0.8938 0.0919 0.75 282 -0.4675 0.7684 0.0453 0.75 294 -1.0535 0.9401 0.0821 0.85 90 -0.915 0.8055 0.0728 0.85 102 0.0983 0.672 0.0308 0.85 114 -0.1541 0.7092 0.032 0.85 126 -0.5672 1.0082 0.0509 0.85 174 1.3068 0.9417 0.0994 0.85 186 -0.1705 0.8861 0.0324 0.85 198 -0.6368 0.7541 0.0551 0.85 210 1.8258 0.7193 0.1357 0.85 222 -0.2715 0.7282 0.0359 0.85 234 -0.5171 0.9908 0.048 0.85 246 -0.2087 0.9157 0.0336 0.95 198 0.2033 0.9915 0.0334 0.95 210 -0.2698 0.7878 0.0358 0.95 222 -0.1966 0.8803 0.0332 0.95 234 -0.148 0.9184 0.0319