CLAS physics database search results Measurement E151M1795 EG4 Xiaochao Zheng 2016 cos(theta_pi+) phi(pi+) A_LL Stat. error Syst. error degrees 0.35 66 -0.5931 0.8494 0.0468 0.35 294 -1.315 0.6927 0.0851 0.55 102 2.8568 2.8568 0.1757 0.65 90 0.576 0.8261 0.046 0.65 102 -1.4036 0.6337 0.0902 0.65 114 0.9422 0.7815 0.0645 0.65 246 -0.1311 0.7928 0.031 0.65 270 0.5901 0.6572 0.0467 0.75 90 0.1786 0.7386 0.0319 0.75 102 -0.2502 0.8591 0.0336 0.75 114 -0.3982 0.743 0.0385 0.75 126 1.1747 0.7901 0.0772 0.75 138 0.6661 0.8809 0.0503 0.75 234 0.2695 0.6901 0.0342 0.75 246 -0.748 0.6429 0.0544 0.75 258 -0.4404 0.6499 0.0402 0.75 270 0.6285 0.677 0.0485 0.75 282 -0.8086 0.7389 0.0575 0.85 66 -0.9679 0.7599 0.0659 0.85 90 1.5179 0.7918 0.0967 0.85 102 0.6752 0.6811 0.0507 0.85 114 -0.3012 0.6778 0.0351 0.85 126 -0.064 0.7642 0.0302 0.85 138 1.1537 0.718 0.0761 0.85 222 0.0423 0.8273 0.0301 0.85 234 0.2953 0.6598 0.0349 0.85 246 -0.1328 0.6545 0.0311 0.85 258 1.0804 0.6085 0.072 0.85 270 0.3257 0.6583 0.0359 0.85 282 0.5849 0.6035 0.0464 0.85 294 0.2329 0.687 0.0332 0.95 66 2.099 2.099 0.1307 0.95 234 -0.2074 0.639 0.0325 0.95 246 0.2033 0.7048 0.0324 0.95 258 0.1742 0.6036 0.0318 0.95 282 -0.323 0.5734 0.0358 0.95 294 0.631 0.6075 0.0486