CLAS physics database search results Measurement E151M1794 EG4 Xiaochao Zheng 2016 cos(theta_pi+) phi(pi+) A_LL Stat. error Syst. error degrees 0.25 66 -0.0149 0.7301 0.03 0.25 282 0.2216 0.8318 0.0329 0.25 294 -1.2073 0.7499 0.0791 0.35 66 -0.6856 0.7286 0.0512 0.35 282 0.6332 0.7618 0.0487 0.35 294 -0.7397 0.796 0.0539 0.65 102 -0.9688 0.7276 0.0659 0.65 114 1.1316 0.7422 0.0748 0.65 126 -0.621 0.7812 0.0481 0.65 246 0.5094 0.6961 0.043 0.65 258 -0.2894 0.8639 0.0347 0.65 270 0.1334 0.8533 0.0311 0.75 90 0.3756 0.5988 0.0377 0.75 102 -0.1986 0.7901 0.0323 0.75 114 0.8318 0.5529 0.0587 0.75 138 0.1184 0.7845 0.0308 0.75 234 0.5961 0.7129 0.047 0.75 246 -0.7865 0.6211 0.0563 0.75 258 -0.2319 0.5781 0.0331 0.75 270 0.702 0.6256 0.0521 0.75 282 1.4304 0.7513 0.0917 0.85 66 0.1949 0.8506 0.0322 0.85 90 0.4674 0.8091 0.0413 0.85 102 -0.3207 0.6287 0.0357 0.85 114 0.2732 0.6778 0.0343 0.85 126 -0.0346 0.6585 0.0301 0.85 138 -0.2848 0.8685 0.0346 0.85 222 1.3432 0.7482 0.0867 0.85 234 0.3669 0.7036 0.0373 0.85 246 0.3865 0.5721 0.0381 0.85 258 -0.4066 0.5847 0.0388 0.85 270 0.8458 0.5638 0.0594 0.85 282 0.7548 0.6009 0.0547 0.85 294 -0.0152 0.8252 0.03 0.95 126 0.6387 0.7921 0.049 0.95 222 1.0056 0.6834 0.0679 0.95 234 -0.2991 0.6564 0.035 0.95 246 -0.8595 0.7203 0.0601 0.95 258 -1.449 0.4632 0.0928 0.95 270 0.8585 0.5451 0.0601 0.95 282 0.0487 0.5066 0.0301 0.95 294 0.1114 0.7175 0.0308