CLAS physics database search results Measurement E151M998 EG4 Xiaochao Zheng 2016 cos(theta_pi+) phi(pi+) A_UL Stat. error Syst. error degrees 0.55 66 0.6773 0.7694 0.0579 0.55 78 1.3475 0.8239 0.103 0.55 90 0.1668 0.5713 0.0324 0.55 102 -0.7612 0.6683 0.0632 0.65 66 1.526 0.8719 0.1155 0.65 78 0.4428 0.7359 0.0441 0.65 90 0.6284 0.7299 0.0549 0.65 258 0.2399 0.6169 0.0347 0.65 282 -0.9171 0.4757 0.0734 0.75 66 -0.0322 0.7229 0.0301 0.75 78 1.0628 0.682 0.0833 0.75 90 0.2531 0.5801 0.0352 0.75 102 0.1736 0.7016 0.0326 0.75 114 0.0037 0.8145 0.03 0.75 246 -0.3231 0.6899 0.0382 0.75 258 0.7434 0.653 0.0621 0.75 270 -0.3034 0.5724 0.0373 0.75 282 -0.2906 0.505 0.0368 0.75 294 -0.8429 0.4794 0.0685 0.75 306 -0.3026 0.6185 0.0373 0.75 318 0.083 0.5903 0.0306 0.85 66 0.0881 0.8051 0.0307 0.85 78 -1.1373 0.4652 0.0884 0.85 90 1.2622 0.7661 0.097 0.85 102 0.0004 0.5867 0.03 0.85 114 -0.1163 0.6915 0.0312 0.85 126 -1.0576 0.6161 0.0829 0.85 234 1.144 0.8381 0.0888 0.85 246 -0.1676 0.5684 0.0324 0.85 258 -0.3433 0.5472 0.0391 0.85 270 0.4604 0.6141 0.0451 0.85 282 -0.1646 0.562 0.0323 0.85 294 -0.4386 0.5074 0.0439 0.85 306 -0.3394 0.4764 0.0389 0.85 318 -0.3928 0.4644 0.0415 0.85 330 -0.9093 0.4423 0.0729 0.95 90 -0.7628 0.543 0.0633 0.95 234 -0.3854 0.6434 0.0412 0.95 246 -0.8718 0.4649 0.0704 0.95 258 -0.1689 0.5415 0.0324 0.95 270 0.8169 0.7085 0.0668 0.95 282 -0.2906 0.5772 0.0368 0.95 306 -0.5856 0.5651 0.0523 0.95 318 0.0791 0.6188 0.0306 0.95 330 -0.196 0.6232 0.0332