CLAS physics database search results Measurement E151M2301 EG4 Xiaochao Zheng 2016 cos(theta_pi+) phi(pi+) A_LL Stat. error Syst. error degrees 0.25 282 -1.2531 0.9943 0.0957 0.35 282 -1.2966 0.8178 0.0987 0.45 90 0.2038 0.9262 0.0334 0.45 114 -0.6852 1.0008 0.058 0.45 282 0.2695 0.9578 0.0358 0.55 90 0.0494 0.8499 0.0302 0.55 102 0.1991 1.0054 0.0333 0.55 114 0.8766 0.9279 0.0703 0.65 90 -0.5054 0.7233 0.0474 0.65 102 1.2528 0.7947 0.0957 0.65 114 -0.0476 0.7294 0.0302 0.65 126 -0.6693 0.7717 0.0571 0.65 222 -0.2484 1.0177 0.035 0.65 234 0.3202 1.0121 0.0379 0.65 306 -0.7645 0.8206 0.063 0.75 66 -0.039 0.8555 0.0301 0.75 78 0.9163 0.9627 0.0729 0.75 90 -0.3083 0.7897 0.0374 0.75 102 0.3339 0.7037 0.0386 0.75 114 0.0695 0.6782 0.0304 0.75 126 -0.464 1.0387 0.0451 0.75 198 -0.0334 1.0387 0.0301 0.75 210 2.149 0.683 0.1587 0.75 222 0.3132 0.852 0.0376 0.75 234 -0.6753 0.7986 0.0574 0.75 246 -0.7628 0.6958 0.0629 0.75 258 0.3051 0.8052 0.0373 0.85 54 0.5976 0.7325 0.0527 0.85 66 0.7399 0.7265 0.0615 0.85 78 -0.8262 0.6896 0.067 0.85 102 0.007 0.7848 0.03 0.85 114 -0.3327 0.8237 0.0385 0.85 198 1.3432 0.8785 0.1019 0.85 210 -0.9914 0.6617 0.0779 0.85 222 0.7568 0.8342 0.0625 0.85 234 0.3936 0.6018 0.0414 0.85 246 -0.4905 0.6575 0.0465 0.85 258 -0.6535 0.5647 0.0561 0.85 270 -0.0635 0.5989 0.0304 0.85 282 -1.1646 0.7135 0.0896 0.85 294 0.0513 0.7633 0.0302 0.95 78 -0.5743 0.9153 0.0513 0.95 198 0.1631 0.9279 0.0322 0.95 210 -0.3227 0.8008 0.038 0.95 222 1.0224 0.7264 0.08 0.95 234 0.3785 0.6648 0.0407 0.95 246 -0.4527 0.6561 0.0445 0.95 258 -0.0827 0.6354 0.0306 0.95 270 -0.7499 0.6251 0.0621 0.95 282 0.786 0.6968 0.0644 0.95 294 0.2996 0.5786 0.037 0.95 306 0.6714 0.6566 0.0572 0.95 318 0.2168 0.6474 0.0339