CLAS physics database search results Measurement E151M2395 EG4 Xiaochao Zheng 2016 cos(theta_pi+) phi(pi+) A_LL Stat. error Syst. error degrees 0.45 270 0.0417 0.9799 0.0302 0.55 138 0.0776 1.1673 0.0305 0.65 126 -1.1627 0.8551 0.0895 0.65 138 -0.1788 1.0518 0.0327 0.65 198 -0.5758 1.0888 0.0514 0.65 210 0.002 1.0688 0.03 0.65 270 -0.3785 0.9257 0.0407 0.65 282 -0.3767 0.9968 0.0406 0.75 90 -0.4606 1.0214 0.0449 0.75 102 -1.1735 0.7764 0.0902 0.75 114 -0.0528 1.0427 0.0302 0.75 186 -0.1381 1.0606 0.0316 0.75 198 -1.7885 0.7614 0.1331 0.75 210 -2.0499 0.7948 0.1516 0.75 222 0.3965 0.9458 0.0416 0.75 258 1.9396 0.9875 0.1438 0.75 270 -0.6527 0.8687 0.056 0.75 282 -1.4168 0.7658 0.107 0.85 90 -0.4821 0.9483 0.0461 0.85 102 -0.0515 0.812 0.0302 0.85 114 -1.1844 0.8419 0.091 0.85 126 0.1691 0.8917 0.0324 0.85 138 0.0242 0.9793 0.0301 0.85 174 0.6709 0.9669 0.0572 0.85 186 0.8754 0.8048 0.0702 0.85 198 -0.238 0.7019 0.0346 0.85 210 0.295 0.6771 0.0368 0.85 222 0.5024 0.8923 0.0472 0.85 234 1.8331 1.0165 0.1363 0.85 270 0.8313 1.0115 0.0673 0.85 282 0.1597 0.9112 0.0322 0.95 210 -2.0094 0.9573 0.1488 0.95 222 1.5229 0.8674 0.1144