CLAS physics database search results Measurement E151M2033 EG4 Xiaochao Zheng 2016 cos(theta_pi+) phi(pi+) A_LL Stat. error Syst. error degrees 0.35 66 -0.9108 0.6876 0.0664 0.45 282 -0.4921 0.7114 0.0439 0.65 102 1.2029 0.7093 0.0838 0.65 114 0.8138 0.8166 0.0609 0.65 258 -2.4818 2.4818 0.1642 0.75 90 -0.2579 0.6891 0.0344 0.75 102 -0.3159 0.6917 0.0364 0.75 114 -0.5828 0.6989 0.0483 0.75 126 -0.5508 0.8558 0.0467 0.75 234 -0.04 0.6535 0.0301 0.75 246 -0.0896 0.7107 0.0306 0.75 258 -0.8663 0.7819 0.0638 0.75 270 -0.1163 0.7227 0.0309 0.85 66 0.2952 0.7666 0.0356 0.85 102 0.6037 0.6902 0.0494 0.85 114 0.7468 0.7647 0.0571 0.85 246 -0.7147 0.7594 0.0553 0.85 258 -0.7287 0.7465 0.0561 0.85 270 -0.4519 0.8484 0.042 0.85 282 0.2957 0.8046 0.0356 0.95 258 -0.3675 1.0962 0.0384 0.95 270 2.5159 1.2313 0.1664 0.95 282 -0.2467 1.2238 0.034 0.95 294 1.6851 1.0125 0.1137 0.25 78 -1.9806 1.1718 0.1845 0.65 102 1.0324 1.1355 0.0995 0.65 258 -1.7013 0.9111 0.1592 0.75 90 0.5829 1.2112 0.0614 0.75 102 -1.0489 1.2377 0.101 0.75 114 -1.3619 1.3146 0.1287 0.75 126 1.9971 1.2497 0.186 0.75 246 1.3741 0.9544 0.1298 0.75 258 0.1152 1.0566 0.0318 0.75 270 0.0972 1.0231 0.0313 0.85 102 -0.3624 1.4262 0.0448 0.85 114 -1.9863 1.1985 0.185 0.85 246 1.6487 1.2588 0.1545 0.85 258 0.5481 1.111 0.0586 0.85 270 -0.5617 1.2241 0.0597 0.85 282 2.9467 1.0201 0.2725 0.85 294 1.8809 1.0364 0.1754 0.95 66 0.8099 3.943 0.0802 0.95 258 0.0263 3.3393 0.0301 0.95 282 -0.3597 2.6199 0.0446