CLAS physics database search results Measurement E151M2385 EG4 Xiaochao Zheng 2016 cos(theta_pi+) phi(pi+) A_LL Stat. error Syst. error degrees 0.45 126 0.6967 0.9906 0.0588 0.45 270 1.0522 1.0176 0.082 0.45 282 -0.4507 0.9345 0.0444 0.55 126 0.9183 1.1419 0.073 0.55 138 0.0928 1.1674 0.0307 0.55 210 -1.0891 0.9502 0.0845 0.65 114 0.5199 0.9056 0.0482 0.65 126 0.3909 0.9375 0.0413 0.65 138 -0.7618 1.0079 0.0629 0.65 186 -2.5485 1.1079 0.1872 0.65 198 1.1578 1.1124 0.0892 0.65 210 -1.6798 0.8338 0.1254 0.65 222 -1.2452 0.9451 0.0951 0.65 270 0.7773 0.9298 0.0639 0.65 282 0.9377 0.7814 0.0743 0.65 294 0.1066 0.9652 0.031 0.75 90 -0.5914 1.1032 0.0523 0.75 102 0.4072 0.9672 0.0421 0.75 126 0.7518 1.1465 0.0622 0.75 138 -2.6991 0.998 0.198 0.75 186 -1.1043 1.0877 0.0855 0.75 198 -0.2911 0.8508 0.0367 0.75 210 0.4539 0.7926 0.0445 0.75 222 -1.4231 0.8638 0.1075 0.75 234 1.1204 1.1734 0.0866 0.75 258 -0.927 0.9366 0.0736 0.75 270 -0.9261 0.8745 0.0736 0.75 282 -1.3292 0.6174 0.1009 0.75 294 -1.4727 0.8577 0.1109 0.85 90 0.0112 0.7051 0.03 0.85 102 -1.0869 0.6856 0.0843 0.85 114 0.1663 0.6845 0.0323 0.85 126 -1.3453 0.7963 0.1021 0.85 174 0.6814 0.7565 0.0578 0.85 186 -0.2778 0.7293 0.0361 0.85 198 -1.0404 0.7552 0.0812 0.85 210 -0.7114 0.6647 0.0597 0.85 222 0.8272 0.7229 0.0671 0.85 234 0.0765 0.7941 0.0305 0.85 246 -1.1119 0.7957 0.086 0.95 114 -1.8396 0.89 0.1367 0.95 186 -0.2009 0.8644 0.0334 0.95 198 -0.9785 0.9322 0.077 0.95 210 1.7391 0.7844 0.1296 0.95 222 0.223 0.8638 0.0341 0.95 234 0.7477 1.014 0.062 0.95 246 1.2585 0.8835 0.0961