CLAS physics database search results Measurement E151M2110 EG4 Xiaochao Zheng 2016 cos(theta_pi+) phi(pi+) A_LL Stat. error Syst. error degrees 0.65 114 -2.4173 2.4173 0.2242 0.65 126 1.5353 0.769 0.1443 0.65 210 0.663 0.8267 0.0679 0.65 222 -0.2781 0.867 0.0394 0.75 126 0.6144 1.0546 0.0639 0.75 138 0.1981 1.0075 0.0351 0.75 282 -0.5678 0.8441 0.0602 0.85 90 0.0509 1.0231 0.0304 0.85 210 -0.6704 0.9491 0.0685 0.85 222 -1.5029 0.9332 0.1413 0.85 246 0.8012 0.835 0.0795 0.35 282 -0.3948 0.7889 0.0395 0.45 270 0.6262 0.7029 0.0506 0.45 282 0.6375 0.8134 0.0512 0.55 270 1.3173 0.7864 0.0908 0.65 102 -0.9113 0.8417 0.0664 0.65 126 -0.5769 0.8323 0.048 0.75 126 0.6468 0.8942 0.0517 0.75 210 -1.585 0.9316 0.1074 0.75 222 -0.2918 0.9036 0.0355 0.75 282 -0.3533 0.9125 0.0378 0.75 294 0.0644 0.8633 0.0303 0.85 90 0.2784 0.7737 0.035 0.85 102 -0.8059 0.8611 0.0604 0.85 114 1.7835 0.8879 0.1198 0.85 210 1.1449 1.0281 0.0803 0.85 222 -0.0475 1.0208 0.0302 0.85 234 -1.2355 0.8164 0.0858 0.85 246 -0.2708 0.9527 0.0348 0.95 234 -1.0627 1.5148 0.0754 0.95 246 -2.9753 1.3604 0.1959