CLAS physics database search results Measurement E151M2384 EG4 Xiaochao Zheng 2016 cos(theta_pi+) phi(pi+) A_LL Stat. error Syst. error degrees 0.35 270 0.4372 1.0458 0.0436 0.55 114 -0.8415 0.9651 0.068 0.55 126 0.2565 0.9904 0.0353 0.55 138 -1.5065 1.0148 0.1133 0.65 114 -0.1849 1.0487 0.0329 0.65 126 0.0985 0.9346 0.0308 0.65 138 -0.621 0.9527 0.0541 0.65 186 -0.1075 0.9568 0.031 0.65 198 -0.8091 1.0839 0.0659 0.65 222 -0.6127 1.0625 0.0536 0.65 282 -0.262 0.8383 0.0355 0.65 294 0.4347 0.9909 0.0435 0.75 90 -0.1211 1.0476 0.0313 0.75 102 -0.974 0.8064 0.0767 0.75 114 -0.604 1.0565 0.0531 0.75 138 1.3085 0.9901 0.0995 0.75 186 -0.0023 0.8872 0.03 0.75 198 0.1537 0.8527 0.032 0.75 210 -0.1833 0.7191 0.0328 0.75 222 -0.6308 0.8398 0.0547 0.75 234 -0.6521 1.1222 0.056 0.75 258 -0.4376 0.959 0.0437 0.75 270 -0.1733 0.8808 0.0325 0.75 282 0.2486 0.8003 0.035 0.75 294 0.6285 0.9632 0.0546 0.85 90 -0.4384 0.8695 0.0437 0.85 102 -0.8255 0.7605 0.067 0.85 114 0.0296 0.7697 0.0301 0.85 126 0.0054 0.7784 0.03 0.85 138 -0.2905 1.0412 0.0367 0.85 174 -0.232 0.9581 0.0344 0.85 186 -0.3372 0.6784 0.0387 0.85 198 0.4312 0.7291 0.0433 0.85 210 -0.526 0.7502 0.0485 0.85 222 1.1882 0.7265 0.0912 0.85 234 0.5971 0.8198 0.0527 0.85 246 -1.0209 0.9565 0.0799 0.85 270 0.7418 0.9685 0.0616 0.85 282 -1.0051 0.7631 0.0788 0.95 102 -2.0645 0.8163 0.1527 0.95 186 0.5465 0.9329 0.0497 0.95 198 -0.9168 0.8357 0.0729 0.95 210 0.1083 0.7866 0.031 0.95 222 -0.1661 0.8884 0.0323 0.95 234 -0.2084 0.9261 0.0336