CLAS physics database search results Measurement E151M644 EG4 Xiaochao Zheng 2016 cos(theta_pi+) phi(pi+) A_UL Stat. error Syst. error degrees 0.35 294 1.4585 0.8759 0.0941 0.45 78 -0.2255 0.6888 0.033 0.45 126 0.3659 0.8637 0.0374 0.45 282 -0.1798 0.7048 0.032 0.55 114 0.0649 0.819 0.0303 0.55 126 -0.2289 0.6938 0.0331 0.55 270 1.0356 0.8562 0.0701 0.55 282 -1.0332 0.5302 0.07 0.65 102 -0.8806 0.713 0.0617 0.65 114 -0.5704 0.6069 0.046 0.65 126 0.4618 0.6465 0.0412 0.65 138 -1.1045 0.6361 0.0739 0.65 198 0.5176 0.8778 0.0436 0.65 222 1.1022 0.658 0.0738 0.65 234 0.7686 0.6241 0.0558 0.65 294 0.5665 0.7093 0.0458 0.75 114 -1.378 0.524 0.0895 0.75 126 0.4861 0.6715 0.0422 0.75 138 -0.572 0.617 0.0461 0.75 150 -1.1834 0.5793 0.0784 0.75 210 0.9008 0.7384 0.0627 0.75 222 1.1411 0.6459 0.076 0.75 234 0.2062 0.5448 0.0325 0.75 246 1.1587 0.6923 0.077 0.75 282 1.9277 0.6032 0.1217 0.75 294 2.2185 0.7072 0.139 0.85 90 -0.5133 0.6713 0.0434 0.85 114 -0.3417 0.6713 0.0366 0.85 126 0.3306 0.8114 0.0362 0.85 210 -1.2402 0.5439 0.0816 0.85 222 0.6119 0.6121 0.048 0.85 234 0.351 0.5759 0.0369 0.85 246 0.4102 0.6294 0.0391 0.95 114 -0.8986 0.5854 0.0626 0.95 222 1.2551 0.6267 0.0824 0.95 234 0.9961 0.6726 0.0679