CLAS physics database search results Measurement E151M1468 EG4 Xiaochao Zheng 2016 cos(theta_pi+) phi(pi+) A_LL Stat. error Syst. error degrees 0.45 270 0.3771 0.6126 0.0376 0.45 282 0.8721 0.4022 0.0635 0.55 270 -1.1125 0.3306 0.0727 0.55 282 0.8707 0.3725 0.0598 0.55 294 -0.0225 0.5211 0.0412 0.65 258 -0.5659 0.4153 0.0474 0.65 270 -0.0172 0.3743 0.0345 0.65 282 -0.2465 0.4351 0.0334 0.65 294 0.7094 0.4386 0.0524 0.75 126 0.8432 0.633 0.0588 0.75 234 -0.0404 0.924 0.0301 0.75 246 0.8514 0.447 0.0602 0.75 258 0.2145 0.3804 0.035 0.75 270 0.1603 0.3638 0.0318 0.75 282 0.0171 0.3427 0.0388 0.75 294 0.0977 0.3646 0.031 0.85 90 1.0089 0.5699 0.0674 0.85 102 -0.6113 0.3985 0.0471 0.85 114 1.0423 0.4071 0.0693 0.85 126 0.0675 0.3851 0.0372 0.85 138 -0.4811 0.4059 0.0414 0.85 150 -0.1554 0.4584 0.0436 0.85 162 0.9986 0.5093 0.0681 0.85 246 0.0084 0.3892 0.0302 0.85 258 0.6048 0.3611 0.0466 0.85 270 0.0368 0.3669 0.0315 0.85 282 -0.0281 0.3591 0.0386 0.85 294 0.1606 0.4233 0.0337 0.95 66 1.4542 0.4611 0.0922 0.95 78 -0.2395 0.538 0.0333 0.95 102 0.8772 0.4407 0.0611 0.95 114 0.4204 0.3712 0.0426 0.95 126 -0.1565 0.3818 0.0332 0.95 138 0.1918 0.4138 0.0353 0.95 150 0.213 0.3816 0.0415 0.95 162 1.2163 0.3677 0.0779 0.95 174 -0.2947 0.4136 0.0383 0.95 186 1.6249 1.6249 0.0991 0.95 198 -1.2259 0.3542 0.0782 0.95 210 -0.0331 0.8556 0.0301 0.95 246 0.6044 0.6005 0.047 0.95 270 0.5336 0.3888 0.0439 0.95 294 -1.1252 0.4453 0.072