Measurement E151M2491
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.1168 | |
| Q2: | 0.0205 GeV2 | |
| W: | 1265.0 GeV | |
| Ebeam: | 1.0539 GeV | |
| ε: | 0.8868 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.15 | 42.0 | 0.3647 | 0.243 |
| 0.25 | 42.0 | 0.176 | 0.1773 |
| 0.25 | 54.0 | -0.1264 | 0.1792 |
| 0.35 | 30.0 | 0.3628 | 0.2086 |
| 0.35 | 42.0 | 0.1121 | 0.1793 |
| 0.35 | 54.0 | 0.2227 | 0.1891 |
| 0.35 | 66.0 | 0.3343 | 0.201 |
| 0.45 | 30.0 | 0.0587 | 0.2097 |
| 0.45 | 42.0 | 0.0309 | 0.1566 |
| 0.45 | 54.0 | 0.5278 | 0.1832 |
| 0.45 | 258.0 | 0.0666 | 0.2297 |
| 0.45 | 270.0 | -0.1366 | 0.2093 |
| 0.45 | 282.0 | -0.09 | 0.2513 |
| 0.55 | 42.0 | 0.1123 | 0.1805 |
| 0.55 | 54.0 | 0.0262 | 0.2285 |
| 0.55 | 234.0 | 0.0171 | 0.1944 |
| 0.55 | 246.0 | -0.0996 | 0.1511 |
| 0.55 | 258.0 | -0.0799 | 0.1273 |
| 0.55 | 270.0 | 0.1933 | 0.144 |
| 0.55 | 282.0 | 0.103 | 0.1751 |
| 0.65 | 138.0 | -0.056 | 0.212 |
| 0.65 | 150.0 | -0.3119 | 0.2304 |
| 0.65 | 162.0 | -0.2777 | 0.2078 |
| 0.65 | 174.0 | -0.1239 | 0.2402 |
| 0.65 | 186.0 | -0.1969 | 0.234 |
| 0.65 | 198.0 | 0.1463 | 0.2535 |
| 0.65 | 222.0 | 0.1675 | 0.2009 |
| 0.65 | 234.0 | -0.0013 | 0.1371 |
| 0.65 | 246.0 | -0.126 | 0.1164 |
| 0.65 | 258.0 | 0.0424 | 0.1071 |
| 0.65 | 270.0 | 0.0613 | 0.1444 |
| 0.65 | 282.0 | -0.3277 | 0.1809 |
| 0.75 | 138.0 | -0.129 | 0.1981 |
| 0.75 | 150.0 | -0.1235 | 0.1494 |
| 0.75 | 162.0 | -0.0434 | 0.158 |
| 0.75 | 174.0 | -0.0553 | 0.156 |
| 0.75 | 186.0 | 0.0325 | 0.1692 |
| 0.75 | 198.0 | -0.1757 | 0.1889 |
| 0.75 | 210.0 | 0.1827 | 0.1871 |
| 0.75 | 222.0 | -0.267 | 0.1635 |
| 0.75 | 234.0 | -0.1797 | 0.1432 |
| 0.75 | 246.0 | 0.01 | 0.1149 |
| 0.75 | 258.0 | -0.2002 | 0.1065 |
| 0.75 | 270.0 | -0.1041 | 0.1335 |
| 0.75 | 282.0 | 0.1752 | 0.164 |
| 0.85 | 138.0 | 0.3473 | 0.1913 |
| 0.85 | 150.0 | -0.1308 | 0.1547 |
| 0.85 | 162.0 | 0.2075 | 0.1626 |
| 0.85 | 174.0 | 0.3282 | 0.1711 |
| 0.85 | 186.0 | -0.0981 | 0.2029 |
| 0.85 | 198.0 | 0.3282 | 0.2079 |
| 0.85 | 210.0 | -0.2592 | 0.2088 |
| 0.85 | 222.0 | -0.3975 | 0.1816 |
| 0.85 | 234.0 | -0.0288 | 0.1444 |
| 0.85 | 246.0 | -0.1567 | 0.1184 |
| 0.85 | 258.0 | -0.0431 | 0.1269 |
| 0.85 | 270.0 | -0.1163 | 0.1763 |
Experiment comment: