CLAS physics database search results Measurement E151M572 EG4 Xiaochao Zheng 2016 cos(theta_pi+) phi(pi+) A_UL Stat. error Syst. error degrees 0.25 66 -0.3435 0.5903 0.0366 0.25 282 -1.1436 0.5596 0.0761 0.25 294 -0.3228 0.6555 0.0359 0.35 66 -0.1183 0.6168 0.0309 0.35 282 0.1715 0.6831 0.0318 0.35 294 -0.3383 0.6525 0.0364 0.65 102 -0.1219 0.6141 0.0309 0.65 114 0.1806 0.6779 0.032 0.65 126 2.6434 2.6434 0.1644 0.65 246 -0.1969 0.5651 0.0323 0.65 258 0.81 0.7958 0.0579 0.65 270 0.3914 0.7617 0.0384 0.75 90 -0.8123 0.4438 0.058 0.75 102 -0.2204 0.65 0.0329 0.75 114 -1.062 0.3986 0.0715 0.75 138 0.3056 0.6927 0.0353 0.75 234 0.4747 0.6504 0.0417 0.75 246 -0.2255 0.5296 0.033 0.75 258 -0.078 0.491 0.0304 0.75 270 -0.0225 0.53 0.03 0.75 282 0.4741 0.7608 0.0417 0.85 66 0.9929 0.7787 0.0677 0.85 90 -0.7808 0.5931 0.0564 0.85 102 -0.352 0.5064 0.0369 0.85 114 0.0331 0.5814 0.0301 0.85 126 -0.1321 0.5504 0.0311 0.85 138 -0.3228 0.7044 0.0359 0.85 222 0.7595 0.7167 0.0553 0.85 234 0.8227 0.6369 0.0586 0.85 246 -0.3228 0.4627 0.0359 0.85 258 -0.2573 0.4792 0.0339 0.85 270 0.3956 0.5049 0.0385 0.85 282 0.7225 0.5559 0.0534 0.85 294 0.3001 0.7368 0.0352 0.95 126 0.7915 0.7444 0.057 0.95 222 -0.0444 0.6125 0.0301 0.95 234 0.169 0.5942 0.0317 0.95 246 0.7146 0.7074 0.053 0.95 258 1.3521 0.5482 0.088 0.95 270 0.8261 0.5171 0.0588 0.95 282 0.0923 0.4359 0.0305 0.95 294 -0.3534 0.5731 0.037