CLAS physics database search results Measurement E151M1955 EG4 Xiaochao Zheng 2016 cos(theta_pi+) phi(pi+) A_LL Stat. error Syst. error degrees 0.45 78 -2.8621 2.5254 0.2647 0.55 270 -2.7517 2.3452 0.2547 0.65 270 1.958 1.7938 0.1824 0.65 282 -0.5486 2.3012 0.0587 0.75 258 -1.5773 2.1588 0.148 0.75 270 1.0291 1.7874 0.0992 0.75 282 0.5336 2.0193 0.0575 0.85 102 -6.2476 3.1504 0.575 0.85 114 -0.1683 2.5499 0.0338 0.85 126 -4.3436 3.0157 0.4003 0.85 138 5.2538 2.6895 0.4838 0.95 114 -5.1874 8.0598 0.4777 0.95 126 -8.4657 8.4789 0.7786 0.95 138 4.4935 7.3893 0.4141 0.95 150 3.4164 8.5597 0.3154 0.95 162 13.2533 9.0855 1.2184 0.95 186 9.9775 8.2548 0.9174 0.95 198 8.7264 7.9776 0.8025 0.35 66 -0.3299 0.4259 0.0369 0.35 78 -0.8628 0.4593 0.0636 0.45 78 0.2411 0.4052 0.0339 0.55 78 0.4171 0.4094 0.0404 0.55 270 0.6203 0.5163 0.0503 0.55 282 -0.1567 0.5131 0.0317 0.65 258 -0.1104 0.5264 0.0308 0.65 270 -0.0849 0.478 0.0305 0.65 282 0.3719 0.3945 0.0385 0.75 102 -0.7847 0.5464 0.0592 0.75 246 -0.1415 0.5691 0.0314 0.75 258 -0.7577 0.408 0.0577 0.75 270 0.0336 0.3374 0.0301 0.75 282 0.2906 0.4113 0.0355 0.85 90 0.7469 0.5967 0.0571 0.85 102 -0.5565 0.523 0.047 0.85 114 0.1281 0.4977 0.0311 0.85 126 -0.21 0.4491 0.033 0.85 246 -0.4859 0.496 0.0436 0.85 258 0.9336 0.4999 0.0677 0.85 270 0.4953 0.4544 0.044 0.95 102 -0.6664 0.782 0.0527 0.95 114 0.2393 0.8177 0.0338 0.95 126 0.6278 0.7604 0.0507 0.95 138 1.1192 0.854 0.0787 0.95 150 0.6098 0.8619 0.0497 0.95 162 -1.0975 0.8698 0.0774 0.95 174 -0.0123 0.895 0.03 0.95 186 0.3653 0.9126 0.0383