CLAS physics database search results Measurement E151M1589 EG4 Xiaochao Zheng 2016 cos(theta_pi+) phi(pi+) A_LL Stat. error Syst. error degrees 0.55 42 -0.9253 0.9446 0.0631 0.55 138 -0.0761 0.9028 0.0303 0.55 150 -1.1461 0.7028 0.075 0.55 162 -0.9613 0.7974 0.065 0.55 222 -0.0464 0.7713 0.0301 0.55 234 -1.4462 0.8211 0.0917 0.55 246 0.3934 0.7908 0.0382 0.65 126 0.4538 0.7289 0.0405 0.65 150 0.3181 0.7938 0.0355 0.65 210 -0.476 0.9353 0.0414 0.65 222 -0.6725 0.8096 0.0502 0.65 234 -0.5439 0.6689 0.0443 0.75 150 -0.8112 0.752 0.0571 0.75 222 -1.0091 0.7007 0.0675 0.75 234 -0.4293 0.6323 0.0395 0.75 246 -0.3543 0.7124 0.0368 0.85 210 0.6733 0.7451 0.0503 0.85 222 -1.2946 0.6676 0.0832 0.85 234 0.8669 0.7771 0.06 0.45 42 0.4803 1.1068 0.041 0.55 30 1.0076 1.0582 0.0658 0.55 42 -1.9099 0.6982 0.115 0.55 138 -0.5693 1.09 0.0447 0.55 210 0.2435 1.0873 0.0332 0.55 222 0.2944 0.8667 0.0345 0.55 234 -0.3516 0.9379 0.0363 0.65 138 0.5053 1.0585 0.042 0.65 150 -0.3688 1.1078 0.0369 0.65 162 -1.3539 0.9378 0.0842 0.65 210 -1.3333 0.9135 0.0831 0.65 222 1.0185 0.8229 0.0664 0.65 234 -1.4036 0.7922 0.087 0.65 246 -1.1571 0.8949 0.0737 0.75 210 -1.0725 1.0039 0.0692 0.75 222 0.6464 0.7838 0.0481 0.75 234 2.5007 2.5007 0.1485 0.85 210 -1.6687 0.7212 0.1016 0.85 222 -0.4927 0.8027 0.0415 0.85 234 0.138 0.8188 0.0311