CLAS physics database search results Measurement E151M206 EG4 Xiaochao Zheng 2016 cos(theta_pi+) phi(pi+) A_UL Data errors Systematic errors degrees 0.55 270 -0.473 0.3442 0.0419 0.55 282 -0.5291 0.3385 0.0444 0.65 270 -0.4565 0.3432 0.0412 0.65 282 0.4581 0.3928 0.0413 0.75 246 0.0966 0.4694 0.0306 0.75 258 -0.3394 0.4069 0.0366 0.75 270 -0.0093 0.3685 0.03 0.75 282 0.4074 0.4531 0.0392 0.85 126 1.003 0.415 0.069 0.85 138 0.337 0.4225 0.0365 0.85 150 0.6316 0.4332 0.0493 0.85 162 0.611 0.4155 0.0483 0.85 174 0.1806 0.4443 0.032 0.85 198 0.2034 0.4496 0.0325 0.85 210 0.4187 0.4337 0.0396 0.85 258 0.0055 0.4226 0.03 0.85 270 -0.2893 0.3933 0.0349 0.95 126 0.4069 0.3747 0.0392 0.95 150 0.361 0.3911 0.0374 0.95 162 0.494 0.3715 0.0428 0.95 174 0.1182 0.3671 0.0309 0.95 186 0.3206 0.3581 0.036 0.95 198 -0.2254 0.3303 0.0331 0.45 282 1.4655 0.7508 0.0932 0.55 270 -0.053 0.6463 0.0302 0.55 282 0.4947 0.6403 0.0423 0.65 258 0.5222 0.7797 0.0435 0.65 270 0.6616 0.615 0.0499 0.65 282 0.0858 0.6483 0.0304 0.75 258 0.2893 0.5558 0.0347 0.75 270 0.9383 0.6863 0.064 0.75 282 0.3828 0.7688 0.0378 0.85 126 0.2392 0.7196 0.0333 0.85 138 -0.3054 0.4855 0.0352 0.85 150 -0.2496 0.5947 0.0336 0.85 162 -0.0506 0.5979 0.0302 0.85 174 0.0025 0.5941 0.03 0.85 186 0.4775 0.8103 0.0416 0.85 210 -0.3464 0.5451 0.0365 0.95 138 0.3371 0.6133 0.0362 0.95 150 1.1598 0.811 0.076 0.95 162 0.2219 0.5266 0.0328 0.95 174 0.0482 0.4611 0.0301 0.95 186 -0.0167 0.5807 0.03 0.95 198 1.3646 1.3646 0.0875 0.95 210 0.6019 0.664 0.047