CLAS physics database search results Measurement E151M1009 EG4 Xiaochao Zheng 2016 cos(theta_pi+) phi(pi+) A_UL Stat. error Syst. error degrees 0.45 90 2.1459 0.9153 0.1597 0.55 78 -0.7846 0.5426 0.0647 0.55 90 1.2406 0.8086 0.0955 0.55 102 0.0349 0.7442 0.0301 0.55 270 0.6396 1.2405 0.0555 0.65 66 0.4939 0.8456 0.0469 0.65 78 0.4598 0.6368 0.045 0.65 90 0.1402 0.6477 0.0317 0.65 102 0.0069 0.6624 0.03 0.65 258 -0.224 0.7498 0.0342 0.65 270 0.6661 0.8035 0.0572 0.65 282 -0.3029 0.6166 0.0373 0.65 294 -0.6797 0.6158 0.058 0.75 66 -0.7758 0.6202 0.0641 0.75 78 0.3818 0.6469 0.041 0.75 90 0.9206 0.6137 0.0737 0.75 102 -0.4426 0.6704 0.0441 0.75 114 0.4829 0.8272 0.0463 0.75 234 0.1913 0.7504 0.0331 0.75 246 1.3244 0.7014 0.1013 0.75 258 -0.2313 0.5794 0.0344 0.75 270 0.0679 0.5853 0.0304 0.75 282 0.4929 0.7158 0.0469 0.75 294 1.0142 0.777 0.08 0.75 306 -0.4056 0.6505 0.0422 0.85 42 -0.6561 0.5855 0.0566 0.85 78 -0.4236 0.5738 0.0431 0.85 90 -0.74 0.5933 0.0618 0.85 102 -0.1332 0.76 0.0315 0.85 126 0.9714 0.918 0.0771 0.85 222 -0.5199 0.5987 0.0484 0.85 234 -0.0598 0.6737 0.0303 0.85 246 -1.0251 0.5674 0.0807 0.85 258 -0.0779 0.6237 0.0305 0.85 270 -0.9451 0.4257 0.0753 0.85 282 1.0623 0.647 0.0832 0.85 294 -0.6425 0.4719 0.0557 0.85 306 -0.8345 0.4388 0.068 0.85 318 -0.5211 0.5325 0.0485 0.85 330 -0.1598 0.5936 0.0322 0.95 90 0.5879 0.784 0.0524 0.95 222 -0.1418 0.7096 0.0317 0.95 234 0.686 0.6712 0.0584 0.95 246 0.2251 0.723 0.0342 0.95 258 0.5835 0.7619 0.0521 0.95 270 -0.3582 0.6003 0.0398 0.95 282 0.0065 0.669 0.03 0.95 294 -0.7222 0.5324 0.0607 0.95 306 -0.7191 0.4801 0.0605 0.95 318 -0.6677 0.5197 0.0573 0.95 330 -0.4587 0.543 0.045