CLAS physics database search results Measurement E151M1364 EG4 Xiaochao Zheng 2016 cos(theta_pi+) phi(pi+) A_LL Stat. error Syst. error degrees 0.55 246 -0.1224 0.9008 0.033 0.55 258 0.3432 0.8238 0.049 0.65 234 1.818 0.7806 0.2072 0.65 246 0.7124 0.7604 0.0858 0.65 258 -0.674 0.7682 0.0817 0.65 270 0.6125 0.8133 0.0753 0.75 138 0.0748 0.9899 0.0312 0.75 174 -0.7955 0.9253 0.0946 0.75 222 2.7831 2.7831 0.3153 0.75 246 0.7343 0.6727 0.0881 0.75 258 0.7828 0.8298 0.0932 0.75 270 -0.4516 0.6768 0.0591 0.75 282 1.2838 0.8098 0.1479 0.85 138 -0.883 1.0132 0.104 0.85 234 1.0187 0.9151 0.1187 0.85 246 -0.6837 0.751 0.0827 0.85 258 -0.54 0.6201 0.0679 0.85 270 0.449 0.5908 0.0589 0.85 282 -0.6252 0.7951 0.0766 0.95 258 0.0884 0.7245 0.0316