CLAS physics database search results Measurement E151M858 EG4 Xiaochao Zheng 2016 cos(theta_pi+) phi(pi+) A_UL Stat. error Syst. error degrees 0.35 78 -0.7095 0.4487 0.0803 0.55 78 -1.2457 0.7497 0.1188 0.55 114 -1.6406 0.7618 0.1544 0.55 126 -0.42 0.8695 0.049 0.55 282 -0.1213 0.7392 0.032 0.65 126 1.2521 1.0664 0.1194 0.65 138 0.1193 0.8794 0.032 0.65 222 -0.5203 0.7687 0.0566 0.75 114 0.3765 1.12 0.0459 0.75 138 -1.7253 0.8314 0.162 0.75 210 -0.5623 0.937 0.0599 0.75 234 -0.1767 0.9238 0.0341 0.75 282 0.1747 0.8103 0.0341 0.85 102 2.1208 1.2319 0.198 0.85 114 -0.3027 1.0684 0.041 0.85 222 0.9418 1.0041 0.092 0.85 234 0.5656 0.8937 0.0602 0.45 66 -0.2353 0.6561 0.0337 0.45 270 0.8752 0.7481 0.0648 0.45 282 0.515 0.726 0.0452 0.55 114 -1.2836 0.5282 0.0894 0.55 138 -1.9664 0.5324 0.1325 0.55 282 2.2244 0.5454 0.149 0.65 126 0.9144 0.8009 0.0671 0.65 150 -0.7177 0.6971 0.0558 0.65 210 0.8003 0.8316 0.0605 0.65 222 0.5458 0.8501 0.0467 0.65 270 0.0647 0.7337 0.0303 0.75 126 -1.3032 0.6785 0.0906 0.75 138 -0.9417 0.6531 0.0687 0.75 210 1.7405 0.9218 0.1181 0.75 222 1.0593 0.8261 0.0757 0.75 234 0.429 0.7843 0.0411 0.75 282 0.8894 0.7732 0.0656 0.85 102 -0.3354 0.7901 0.0372 0.85 114 -0.0064 0.6969 0.03 0.85 210 0.2332 0.8491 0.0337 0.85 222 0.7403 0.8269 0.0571 0.85 234 1.7381 0.9485 0.1179