CLAS physics database search results Measurement E151M1581 EG4 Xiaochao Zheng 2016 cos(theta_pi+) phi(pi+) A_LL Stat. error Syst. error degrees 0.55 138 0.6516 0.7955 0.0492 0.55 234 0.8176 0.5801 0.0574 0.55 246 0.7657 0.5121 0.0562 0.65 126 -0.5029 0.8274 0.0425 0.65 138 0.1357 0.8811 0.0311 0.65 150 -0.1067 0.7575 0.0307 0.65 162 0.5718 0.871 0.0455 0.65 222 0.4018 0.8461 0.0385 0.65 234 0.6382 0.7441 0.0486 0.65 246 0.2379 0.7007 0.0332 0.65 258 -0.66 0.767 0.0496 0.75 114 0.3139 0.7559 0.0354 0.75 126 -0.2918 0.859 0.0347 0.75 138 -0.1841 0.7015 0.032 0.75 150 0.5973 0.8598 0.0467 0.75 222 -0.8958 0.7948 0.0615 0.75 234 -0.0122 0.7402 0.03 0.75 246 0.1786 0.8485 0.0319 0.75 258 -0.3135 0.6752 0.0354 0.75 270 -1.4302 0.8071 0.0908 0.85 114 -0.0189 0.7515 0.03 0.85 126 1.9034 0.804 0.118 0.85 138 -0.742 0.7522 0.0536 0.85 150 0.2756 0.8456 0.0342 0.85 222 0.0708 0.8437 0.0303 0.85 234 0.4106 0.6674 0.0388 0.85 246 0.1609 0.6582 0.0315 0.85 258 0.4137 0.6018 0.0389 0.85 270 -0.2545 0.6116 0.0337 0.95 102 -0.0701 0.7108 0.0303 0.95 234 0.4409 0.6649 0.04 0.95 246 -0.4162 0.656 0.039 0.95 258 -0.3963 0.615 0.0383 0.95 270 0.6891 0.5894 0.051 0.95 282 0.6257 0.7054 0.048 0.55 258 -0.8504 0.9016 0.0578 0.65 126 -0.3532 0.9236 0.0364 0.65 138 0.09 1.1627 0.0305 0.65 222 0.7353 0.9556 0.0522 0.65 234 0.2078 0.8334 0.0323 0.65 246 -1.1143 0.7801 0.0714 0.65 258 0.0988 0.8445 0.0305 0.75 114 -1.1371 1.1039 0.0726 0.75 126 0.4856 0.9962 0.0412 0.75 138 -2.1489 0.8888 0.1285 0.75 162 -2.8395 2.8395 0.1678 0.75 222 1.1857 0.9132 0.0752 0.75 234 0.5786 0.795 0.0451 0.75 246 -0.2137 0.8598 0.0325 0.75 258 -0.4775 0.8347 0.0409 0.75 270 -0.6482 1.0426 0.0482 0.85 138 0.3862 1.0658 0.0375 0.85 222 0.9093 0.9122 0.0608 0.85 234 1.7868 0.5897 0.1081 0.85 246 -1.7151 0.6041 0.1041 0.85 258 0.2128 0.7635 0.0325 0.85 270 -0.3305 0.7524 0.0356 0.95 102 -0.1464 0.9291 0.0312 0.95 114 1.2168 0.7853 0.0769 0.95 234 1.1518 0.5799 0.0734 0.95 246 0.8376 0.7696 0.0572 0.95 258 1.4177 0.6628 0.0877 0.95 270 0.2541 0.9395 0.0334