CLAS physics database search results Measurement E151M631 EG4 Xiaochao Zheng 2016 cos(theta_pi+) phi(pi+) A_UL Stat. error Syst. error degrees 0.25 282 -0.1758 0.737 0.0319 0.35 282 0.4126 0.7644 0.0392 0.35 294 0.1361 0.7082 0.0311 0.45 282 2.073 0.6074 0.1303 0.45 294 0.3686 0.6176 0.0375 0.55 114 -0.5079 0.6567 0.0432 0.55 246 -0.0496 0.7795 0.0302 0.55 270 1.6881 0.7545 0.1075 0.55 282 0.5602 0.6859 0.0455 0.65 54 -0.4228 0.6644 0.0396 0.65 102 -0.2641 0.7292 0.0341 0.65 114 -0.4126 0.6655 0.0392 0.65 126 0.3014 0.6302 0.0352 0.65 150 1.224 0.841 0.0806 0.65 222 0.1759 0.7207 0.0319 0.65 234 2.5479 2.5479 0.1587 0.65 294 1.4215 0.8318 0.092 0.75 102 -0.4108 0.6874 0.0391 0.75 114 -0.6791 0.6861 0.0512 0.75 126 -0.1227 0.6136 0.0309 0.75 138 -1.4763 0.5543 0.0951 0.75 210 -0.1186 0.7513 0.0309 0.75 222 0.1498 0.5294 0.0314 0.75 234 1.1757 0.5955 0.0779 0.75 246 1.2316 0.5847 0.0811 0.75 258 -0.4427 0.6929 0.0404 0.75 282 2.5133 2.5133 0.1566 0.85 78 -0.1725 0.6997 0.0318 0.85 90 -0.091 0.5942 0.0305 0.85 114 -0.017 0.6696 0.03 0.85 138 -0.6446 0.6847 0.0495 0.85 198 2.2143 0.6783 0.1387 0.85 210 1.6346 0.7626 0.1044 0.85 222 0.3388 0.7403 0.0365 0.85 234 -0.2755 0.4903 0.0344 0.85 246 -0.0564 0.5894 0.0302 0.85 258 0.344 0.6372 0.0366 0.85 270 1.105 0.6978 0.0739 0.95 102 -0.6221 0.5477 0.0485 0.95 222 -0.8924 0.4792 0.0623 0.95 234 1.3219 0.5625 0.0862 0.95 258 1.4206 0.5283 0.0919 0.95 270 0.1591 0.5279 0.0315