CLAS physics database search results Measurement E151M1967 EG4 Xiaochao Zheng 2016 cos(theta_pi+) phi(pi+) A_LL Stat. error Syst. error degrees 0.35 66 0.9075 1.9461 0.0886 0.35 78 0.7184 1.7821 0.0725 0.45 66 3.0761 1.8607 0.2843 0.45 78 -1.8802 2.1842 0.1754 0.65 270 1.0523 1.6267 0.1013 0.65 282 -0.7675 1.5448 0.0767 0.75 102 -2.9087 2.0745 0.269 0.75 114 5.9718 2.1892 0.5496 0.75 258 -3.1521 1.7462 0.2912 0.75 270 -0.9739 1.4542 0.0944 0.75 282 0.2236 1.3713 0.0364 0.85 90 -2.0623 2.2729 0.1919 0.85 102 -0.5741 2.1373 0.0607 0.85 114 -3.1813 2.3738 0.2939 0.85 126 5.2672 2.4985 0.485 0.85 258 -2.4972 1.9667 0.2314 0.85 270 0.0473 1.9627 0.0303 0.85 282 0.2895 1.7617 0.0401 0.95 90 -1.1351 6.6259 0.1085 0.95 114 1.4252 7.006 0.1344 0.95 126 6.5295 0.7703 -0.0943 0.95 138 -5.1423 7.3731 0.4735 0.95 150 8.141 6.4395 0.7488 0.95 162 7.3548 6.4861 0.6766 0.25 66 -0.5423 0.4409 0.0463 0.35 66 0.0037 0.4177 0.03 0.45 66 0.4478 0.4443 0.0418 0.55 66 -0.3231 0.5499 0.0366 0.55 270 0.317 0.608 0.0364 0.65 270 -0.9153 0.3878 0.0667 0.65 282 0.1356 0.4164 0.0313 0.75 90 0.4085 0.5896 0.0401 0.75 102 0.4667 0.5203 0.0427 0.75 114 -0.5336 0.5834 0.0459 0.75 258 -0.1287 0.4411 0.0311 0.75 270 -0.3785 0.4194 0.0388 0.75 282 0.3053 0.4242 0.036 0.85 90 -1.2397 0.4631 0.086 0.85 102 0.2889 0.6029 0.0354 0.85 114 -0.0226 0.4987 0.03 0.85 126 0.3719 0.5948 0.0385 0.85 246 -0.7899 0.6194 0.0595 0.85 258 0.7999 0.4802 0.0601 0.85 270 0.2374 0.4745 0.0337 0.85 282 0.5874 0.4439 0.0486 0.95 90 0.1239 0.9116 0.0311 0.95 102 0.0224 0.7663 0.03 0.95 114 -0.2005 0.8936 0.0327 0.95 126 0.0137 0.9857 0.03 0.95 138 0.0839 1.0337 0.0305 0.95 150 0.8298 1.0489 0.0618 0.95 258 -0.326 1.0209 0.0367