Measurement E151M2814
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.032 | |
| Q2: | 0.0205 GeV2 | |
| W: | 1475.0 GeV | |
| Ebeam: | 1.3383 GeV | |
| ε: | 0.768 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.35 | 30.0 | -0.1063 | 0.189 |
| 0.35 | 42.0 | 0.0452 | 0.192 |
| 0.45 | 18.0 | 0.041 | 0.2124 |
| 0.45 | 30.0 | -0.0482 | 0.1764 |
| 0.45 | 42.0 | 0.0175 | 0.1662 |
| 0.45 | 54.0 | -0.0915 | 0.3563 |
| 0.45 | 126.0 | -0.2264 | 0.2558 |
| 0.45 | 138.0 | 0.2867 | 0.2379 |
| 0.45 | 150.0 | 0.3259 | 0.2332 |
| 0.45 | 210.0 | 0.0535 | 0.1843 |
| 0.45 | 222.0 | -0.5415 | 0.1659 |
| 0.45 | 234.0 | 0.2908 | 0.1912 |
| 0.55 | 30.0 | -0.0901 | 0.207 |
| 0.55 | 42.0 | -0.2872 | 0.2121 |
| 0.55 | 126.0 | -0.1858 | 0.2024 |
| 0.55 | 138.0 | 0.3709 | 0.1981 |
| 0.55 | 150.0 | 0.4225 | 0.1981 |
| 0.55 | 162.0 | -0.0026 | 0.2446 |
| 0.55 | 210.0 | 0.1291 | 0.2464 |
| 0.55 | 222.0 | -0.3823 | 0.1811 |
| 0.55 | 234.0 | -0.1177 | 0.1929 |
| 0.55 | 246.0 | 0.0103 | 0.2178 |
| 0.65 | 126.0 | 0.006 | 0.2258 |
| 0.65 | 138.0 | -0.0042 | 0.1782 |
| 0.65 | 150.0 | 0.2083 | 0.2236 |
| 0.65 | 162.0 | 0.1642 | 0.2519 |
| 0.65 | 198.0 | 0.5558 | 0.2422 |
| 0.65 | 210.0 | 0.1774 | 0.2288 |
| 0.65 | 222.0 | 0.1224 | 0.173 |
| 0.65 | 234.0 | -0.2696 | 0.1861 |
| 0.65 | 246.0 | 0.2153 | 0.2198 |
| 0.75 | 126.0 | 0.1094 | 0.2567 |
| 0.75 | 138.0 | -0.0958 | 0.1872 |
| 0.75 | 150.0 | -0.1766 | 0.1887 |
| 0.75 | 162.0 | 0.39 | 0.1989 |
| 0.75 | 198.0 | 0.3031 | 0.2556 |
| 0.75 | 210.0 | 0.1036 | 0.2081 |
| 0.75 | 222.0 | 0.0158 | 0.1663 |
| 0.75 | 234.0 | 0.0245 | 0.1873 |
| 0.75 | 246.0 | -0.1265 | 0.1873 |
| 0.85 | 114.0 | 0.0279 | 0.2602 |
| 0.85 | 126.0 | 0.1308 | 0.2213 |
| 0.85 | 138.0 | 0.1293 | 0.224 |
| 0.85 | 198.0 | 0.4391 | 0.2534 |
| 0.85 | 210.0 | -0.2889 | 0.227 |
| 0.85 | 222.0 | 0.0382 | 0.2192 |
| 0.85 | 234.0 | 0.0269 | 0.1673 |
| 0.85 | 246.0 | 0.1498 | 0.2175 |
| 0.85 | 258.0 | -0.1736 | 0.2721 |
| 0.95 | 234.0 | -0.278 | 0.2385 |
| 0.45 | 246.0 | -0.646 | 0.2391 |
| 0.55 | 18.0 | -0.2856 | 0.3343 |
| 0.55 | 30.0 | 0.3063 | 0.2996 |
| 0.55 | 42.0 | 0.2101 | 0.3032 |
| 0.55 | 126.0 | -0.0499 | 0.3272 |
| 0.55 | 138.0 | 0.0259 | 0.2878 |
| 0.55 | 150.0 | 0.2429 | 0.3187 |
| 0.55 | 162.0 | -0.2449 | 0.439 |
| 0.55 | 174.0 | -0.4227 | 0.3794 |
| 0.55 | 210.0 | 0.1541 | 0.3079 |
| 0.55 | 222.0 | -0.3068 | 0.2403 |
| 0.55 | 234.0 | -0.1308 | 0.2663 |
| 0.55 | 246.0 | -0.3097 | 0.2983 |
| 0.65 | 126.0 | 0.2079 | 0.3228 |
| 0.65 | 138.0 | -0.4003 | 0.2316 |
| 0.65 | 150.0 | -0.0419 | 0.3113 |
| 0.65 | 162.0 | 0.3887 | 0.2855 |
| 0.65 | 198.0 | -0.254 | 0.3445 |
| 0.65 | 210.0 | 0.4446 | 0.2478 |
| 0.65 | 222.0 | 0.2849 | 0.2599 |
| 0.65 | 234.0 | 0.0727 | 0.2394 |
| 0.65 | 246.0 | -0.0974 | 0.2588 |
| 0.75 | 126.0 | 0.898 | 0.1175 |
| 0.75 | 138.0 | -0.3284 | 0.3221 |
| 0.75 | 150.0 | 0.5771 | 0.2333 |
| 0.75 | 162.0 | 0.1311 | 0.3585 |
| 0.75 | 210.0 | -0.4094 | 0.2986 |
| 0.75 | 222.0 | 0.1505 | 0.2407 |
| 0.75 | 234.0 | 0.0443 | 0.2289 |
| 0.75 | 246.0 | -0.4673 | 0.2524 |
| 0.75 | 258.0 | 0.0125 | 0.4353 |
| 0.85 | 126.0 | 0.0569 | 0.3825 |
| 0.85 | 138.0 | 0.1456 | 0.3768 |
| 0.85 | 210.0 | 0.139 | 0.4048 |
| 0.85 | 222.0 | -0.366 | 0.1998 |
| 0.85 | 234.0 | 0.1528 | 0.2118 |
| 0.85 | 246.0 | -0.0093 | 0.2702 |
| 0.95 | 222.0 | -0.8428 | 0.1727 |
| 0.95 | 234.0 | 0.2799 | 0.293 |
Experiment comment: