CLAS physics database search results Measurement E151M2253 EG4 Xiaochao Zheng 2016 cos(theta_pi+) phi(pi+) A_LL Stat. error Syst. error degrees 0.15 54 -0.1627 0.8642 0.0322 0.15 66 0.229 0.9585 0.0343 0.15 294 0.4404 0.8719 0.0438 0.25 66 -0.112 0.968 0.0311 0.25 294 0.9273 0.7258 0.0736 0.35 294 0.66 0.8669 0.0565 0.45 90 -0.3289 0.9151 0.0383 0.55 78 -0.008 0.6865 0.03 0.55 90 1.5041 0.622 0.1131 0.55 102 0.6997 0.6936 0.0589 0.55 114 0.1245 0.8762 0.0313 0.65 78 1.2568 0.5827 0.0959 0.65 90 -0.3159 0.684 0.0377 0.65 102 0.1934 0.7235 0.0331 0.65 114 1.4776 0.746 0.1113 0.65 234 2.743 2.743 0.2011 0.65 246 -0.2188 0.956 0.0339 0.65 258 -0.2581 0.7561 0.0354 0.65 270 -0.632 0.7421 0.0548 0.65 282 1.5696 0.7868 0.1177 0.75 54 -0.0781 0.6539 0.0305 0.75 78 0.091 0.6109 0.0307 0.75 90 1.0638 0.6096 0.0828 0.75 102 0.7557 0.6456 0.0625 0.75 114 0.3663 0.7282 0.0401 0.75 126 0.2237 0.8715 0.0341 0.75 234 0.9739 0.7538 0.0767 0.75 246 -0.0685 0.7523 0.0304 0.75 258 -0.445 0.6081 0.0441 0.75 270 -0.5432 0.5813 0.0495 0.75 282 0.4439 0.6989 0.044 0.75 294 -0.1835 0.8262 0.0328 0.85 54 0.2737 0.8157 0.036 0.85 78 1.0914 0.8949 0.0846 0.85 90 0.4937 0.6362 0.0467 0.85 102 0.0301 0.654 0.0301 0.85 114 0.9751 0.8447 0.0768 0.85 198 -0.5972 0.9787 0.0527 0.85 210 -0.2627 0.8563 0.0355 0.85 222 0.9114 0.7965 0.0726 0.85 234 0.4348 0.7177 0.0435 0.85 246 0.1969 0.6874 0.0332 0.85 258 0.7967 0.7139 0.0651 0.85 270 1.2975 0.5204 0.0988 0.85 282 -0.0874 0.5264 0.0307 0.85 294 -0.5643 0.5692 0.0507 0.85 306 0.1799 0.5925 0.0327 0.85 318 0.386 0.6088 0.041 0.95 234 -0.644 0.7516 0.0555 0.95 258 2.5866 2.5866 0.1899 0.95 282 0.0624 0.6631 0.0303 0.95 294 -0.5889 0.5856 0.0522 0.95 306 -0.0598 0.6234 0.0303 0.95 318 0.6046 0.5604 0.0531 0.95 330 0.5376 0.6162 0.0492 0.95 342 -0.6418 0.7405 0.0554