CLAS physics database search results Measurement E151M1525 EG4 Xiaochao Zheng 2016 cos(theta_pi+) phi(pi+) A_LL Stat. error Syst. error degrees 0.55 258 0.5578 0.5837 0.053 0.55 270 -1.0955 0.5538 0.0715 0.65 114 3.0727 3.0727 0.1812 0.65 126 -0.1816 0.6877 0.0485 0.65 234 0.1805 0.6544 0.0324 0.65 246 -0.0858 0.5131 0.0391 0.65 258 0.261 0.4902 0.0338 0.65 270 -1.1635 0.5057 0.079 0.75 102 0.4247 0.6614 0.0514 0.75 114 0.9159 0.4889 0.0626 0.75 126 -0.0831 0.5112 0.0339 0.75 138 0.0862 0.8636 0.0304 0.75 150 0.7382 0.5856 0.0616 0.75 222 0.6669 0.5612 0.0509 0.75 234 0.412 0.4684 0.0397 0.75 246 0.6502 0.4227 0.0489 0.75 258 -0.3463 0.4279 0.0371 0.75 270 -0.2989 0.4692 0.0349 0.75 282 -0.9439 0.5069 0.064 0.85 114 0.1724 0.4781 0.0323 0.85 126 -0.2918 0.4614 0.0356 0.85 138 0.5913 0.5388 0.0747 0.85 150 0.9776 0.5573 0.0654 0.85 162 -1.7029 0.6945 0.1064 0.85 222 0.3072 0.5739 0.0509 0.85 234 -0.0852 0.5802 0.0311 0.85 246 0.6627 0.4904 0.0508 0.85 258 0.8321 0.4688 0.0603 0.85 270 -0.2328 0.4235 0.0359 0.85 282 0.0211 0.4235 0.0302 0.85 294 -0.1677 0.4681 0.0613 0.95 78 -0.0392 0.6343 0.0394 0.95 90 0.216 0.5382 0.0334 0.95 102 0.6885 0.5383 0.075 0.95 138 0.379 0.6684 0.0376 0.95 150 1.5386 0.6205 0.0944 0.95 234 0.0788 0.5901 0.0312 0.95 246 0.4949 0.4748 0.0422 0.95 258 1.0984 0.3633 0.0718 0.95 270 -0.4439 0.4003 0.04 0.95 282 -0.1666 0.4312 0.0339 0.95 294 0.3113 0.6409 0.0353