CLAS physics database search results Measurement E151M2267 EG4 Xiaochao Zheng 2016 cos(theta_pi+) phi(pi+) A_LL Stat. error Syst. error degrees 0.25 294 -0.9743 0.8855 0.0768 0.45 102 0.1063 1.0021 0.031 0.55 78 -0.4488 0.8567 0.0443 0.55 90 -0.4014 0.8838 0.0418 0.55 102 0.7361 0.8354 0.0612 0.65 78 1.0969 0.8487 0.085 0.65 90 1.0164 0.8787 0.0796 0.65 102 1.0015 0.91 0.0786 0.65 258 0.7631 0.8834 0.0629 0.75 54 -0.527 0.8817 0.0486 0.75 90 -0.1584 0.8024 0.0321 0.75 102 0.5269 0.9553 0.0486 0.75 114 -0.2938 0.9321 0.0368 0.75 234 -1.0889 0.9457 0.0845 0.75 246 -0.0678 0.8579 0.0304 0.75 258 1.3708 0.7791 0.1038 0.75 282 1.439 0.7316 0.1086 0.85 54 0.8812 0.8175 0.0706 0.85 114 0.1072 0.9534 0.031 0.85 210 2.3914 0.7212 0.176 0.85 222 -0.3018 0.8193 0.0371 0.85 246 0.281 0.8762 0.0363 0.85 270 0.7002 0.7432 0.059 0.85 282 -0.9385 0.7839 0.0744 0.85 294 0.221 0.7364 0.034 0.85 306 1.2039 0.6435 0.0923 0.85 318 0.2591 0.7136 0.0354 0.85 330 0.2878 0.7813 0.0365 0.95 294 0.336 0.7731 0.0386