CLAS physics database search results Measurement E151M1151 EG4 Xiaochao Zheng 2016 cos(theta_pi+) phi(pi+) A_UL Stat. error Syst. error degrees 0.45 138 -1.2717 0.7616 0.0977 0.45 270 0.8015 0.9553 0.0658 0.45 282 0.8523 0.9521 0.0691 0.55 102 0.3122 0.9695 0.0377 0.55 114 -0.6067 0.7797 0.0535 0.55 126 -0.3975 0.8324 0.0418 0.55 198 1.3607 0.9818 0.1039 0.55 222 -0.4593 0.8948 0.045 0.65 54 1.349 0.9127 0.1031 0.65 102 0.3586 0.9151 0.0398 0.65 114 -0.2681 0.6868 0.0358 0.65 126 -0.576 0.694 0.0517 0.65 138 -1.34 0.7433 0.1024 0.65 186 -0.3776 0.9148 0.0408 0.65 198 1.0286 0.8802 0.0809 0.65 210 0.7848 0.8221 0.0647 0.65 222 0.777 0.8255 0.0642 0.65 234 -0.815 0.8202 0.0667 0.65 282 -0.2776 0.6387 0.0362 0.65 294 -0.8963 0.6016 0.0721 0.75 90 -0.1892 0.844 0.033 0.75 102 0.3527 0.8513 0.0396 0.75 114 -0.5375 0.7528 0.0494 0.75 126 0.6664 1.0374 0.0572 0.75 186 0.6877 1.0495 0.0585 0.75 198 1.5425 0.9378 0.1167 0.75 210 0.6522 0.6999 0.0563 0.75 222 -0.1181 0.6498 0.0312 0.75 234 0.9863 0.8442 0.0781 0.75 270 0.4163 0.8474 0.0427 0.75 282 -0.809 0.6259 0.0663 0.75 294 0.082 0.7139 0.0306 0.85 78 1.573 0.9741 0.1188 0.85 90 -0.3932 0.5309 0.0415 0.85 102 -0.1453 0.6162 0.0318 0.85 114 0.7017 0.7714 0.0594 0.85 126 1.58 1.035 0.1193 0.85 174 -0.858 0.7064 0.0695 0.85 186 0.1427 0.7064 0.0318 0.85 198 -0.2328 0.5862 0.0345 0.85 210 0.1942 0.5359 0.0332 0.85 222 0.0461 0.5709 0.0302 0.85 234 0.4389 0.5796 0.0439 0.85 246 1.1537 0.8187 0.0895 0.85 258 0.1708 0.9153 0.0325 0.85 270 -0.1131 0.8395 0.0311 0.95 102 -0.0755 0.7052 0.0305 0.95 174 0.8674 1.0262 0.0701 0.95 198 0.2596 0.7128 0.0355 0.95 210 0.9284 0.6741 0.0742 0.95 222 0.3227 0.6257 0.0382 0.95 234 -0.1716 0.6037 0.0325