CLAS physics database search results Measurement E151M348 EG4 Xiaochao Zheng 2016 cos(theta_pi+) phi(pi+) A_UL Data errors Systematic errors degrees 0.55 30 0.2298 0.611 0.0332 0.55 42 -0.5278 0.596 0.0444 0.55 126 -0.9595 0.8248 0.0651 0.55 138 -0.6912 0.8709 0.0513 0.55 150 -0.5129 0.8877 0.0431 0.55 162 -0.3744 0.6518 0.0379 0.55 210 -0.7924 0.7077 0.0564 0.55 222 0.8601 0.5166 0.0612 0.55 234 0.3199 0.4369 0.0368 0.65 126 -0.7119 0.6515 0.0533 0.65 138 -1.2334 0.5803 0.0821 0.65 150 -0.4391 0.6436 0.0405 0.65 210 0.5761 0.6634 0.0466 0.65 222 0.3425 0.5536 0.0367 0.65 234 0.7426 0.4922 0.0549 0.65 246 0.5249 0.6812 0.0442 0.75 150 -1.2305 0.5235 0.0819 0.75 210 1.0811 0.6514 0.0734 0.75 222 -0.8947 0.5532 0.063 0.75 234 0.399 0.5146 0.0389 0.75 246 0.4437 0.5874 0.0407 0.85 210 1.0468 0.6554 0.0714 0.85 222 0.1084 0.5085 0.0307 0.85 234 -0.187 0.511 0.0322 0.55 246 0.5447 0.9632 0.0445 0.65 138 -0.4666 0.8022 0.0411 0.65 210 2.3641 2.3641 0.1455 0.65 222 0.3226 0.7639 0.0357 0.65 234 -0.6705 0.6347 0.0503 0.65 246 0.5065 0.9741 0.0428 0.75 138 -1.6845 0.4616 0.1058 0.75 222 -0.5126 0.6025 0.043 0.75 234 -0.2094 0.6672 0.0325 0.75 246 1.2439 1.0736 0.0807 0.85 210 -0.297 0.8022 0.0349 0.85 222 -0.0368 0.8108 0.0301 0.85 234 -0.3279 0.6312 0.0359 0.85 246 -0.3538 0.78 0.0368