CLAS physics database search results Measurement E151M658 EG4 Xiaochao Zheng 2016 cos(theta_pi+) phi(pi+) A_UL Stat. error Syst. error degrees 0.35 270 1.0362 0.788 0.0701 0.35 282 0.1918 0.705 0.0322 0.45 78 -0.2039 0.7631 0.0325 0.45 126 0.6391 0.9018 0.0493 0.45 270 -0.2378 0.5957 0.0333 0.45 282 -0.1766 0.7369 0.0319 0.55 114 0.5215 0.8445 0.0438 0.55 126 -0.4021 0.7161 0.0388 0.55 210 0.6732 0.8723 0.0509 0.55 258 0.6242 0.8506 0.0486 0.55 270 0.8312 0.8109 0.059 0.55 282 -0.3408 0.6441 0.0365 0.65 114 -0.2606 0.6884 0.034 0.65 126 -0.5317 0.6535 0.0442 0.65 138 -0.0022 0.6579 0.03 0.65 210 0.0833 0.6841 0.0304 0.65 234 1.3661 0.8031 0.0888 0.65 282 0.0273 0.7201 0.03 0.65 294 -0.1203 0.6758 0.0309 0.75 66 -0.1377 0.7754 0.0312 0.75 126 -1.0355 0.6444 0.0701 0.75 138 -1.1816 0.524 0.0782 0.75 198 1.6025 0.7614 0.1025 0.75 210 0.0487 0.7741 0.0301 0.75 222 -0.3352 0.6137 0.0363 0.75 234 0.5211 0.6825 0.0438 0.75 246 0.7995 0.7515 0.0574 0.75 270 0.316 0.6827 0.0357 0.75 282 0.1835 0.6546 0.032 0.75 294 1.0314 0.6479 0.0699 0.85 102 -0.058 0.641 0.0302 0.85 114 -1.6729 0.5437 0.1066 0.85 126 -0.2276 0.8003 0.0331 0.85 198 -0.7487 0.6433 0.0547 0.85 210 1.073 0.6506 0.0722 0.85 222 -0.121 0.557 0.0309 0.85 234 0.0227 0.6086 0.03 0.85 246 0.2878 0.7193 0.0348 0.95 234 0.3544 0.7162 0.037 0.95 246 -0.3591 0.6424 0.0372