CLAS physics database search results Measurement E151M1105 EG4 Xiaochao Zheng 2016 cos(theta_pi+) phi(pi+) A_UL Stat. error Syst. error degrees 0.55 102 0.4155 0.9925 0.0427 0.55 114 0.8564 1.0563 0.0694 0.55 294 -0.1954 0.768 0.0332 0.65 102 0.9126 0.8383 0.0731 0.65 114 -0.0847 0.8924 0.0306 0.65 222 1.1765 0.9284 0.0911 0.65 306 -1.455 0.5717 0.1105 0.75 54 -1.2661 0.6555 0.0973 0.75 66 -0.469 0.7553 0.0455 0.75 78 -1.2221 0.6434 0.0942 0.75 102 -0.5572 0.6521 0.0506 0.75 114 -0.2646 0.8195 0.0357 0.75 222 -0.2884 0.7098 0.0367 0.75 234 -1.2076 0.6496 0.0932 0.75 246 -0.8974 0.6465 0.0721 0.75 258 0.6753 0.9319 0.0578 0.85 54 1.565 0.8872 0.1183 0.85 66 0.1503 0.6924 0.0319 0.85 78 -0.6209 0.7254 0.0544 0.85 186 0.1945 0.9291 0.0332 0.85 198 2.5008 0.9875 0.1852 0.85 210 0.596 0.8426 0.0529 0.85 222 2.1991 0.7385 0.1635 0.85 234 -0.5287 0.6738 0.0489 0.85 246 0.3997 0.606 0.0419 0.85 258 0.1869 0.7159 0.033 0.85 270 -0.8613 0.6262 0.0697 0.95 186 0.4453 0.8588 0.0443 0.95 210 0.7498 0.885 0.0625 0.95 222 0.2058 0.8442 0.0336 0.95 234 0.8851 0.7946 0.0713 0.95 246 -0.5536 0.5515 0.0504 0.95 258 -0.4081 0.5992 0.0423 0.95 270 -0.0399 0.5891 0.0301 0.95 282 0.4404 0.5945 0.044 0.95 294 0.8263 0.6245 0.0674 0.95 306 -0.8547 0.4833 0.0693 0.95 318 0.0414 0.6845 0.0302