Measurement E151M3559
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.1937 | |
| Q2: | 0.2915 GeV2 | |
| W: | 1655.0 GeV | |
| Ebeam: | 2.999 GeV | |
| ε: | 0.8724 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.35 | 270.0 | 0.2841 | 0.2426 |
| 0.45 | 102.0 | 0.2481 | 0.2119 |
| 0.45 | 270.0 | -0.1603 | 0.2417 |
| 0.45 | 282.0 | -0.1496 | 0.2559 |
| 0.55 | 90.0 | 0.3162 | 0.237 |
| 0.55 | 102.0 | 0.004 | 0.255 |
| 0.55 | 114.0 | -0.0262 | 0.2256 |
| 0.55 | 126.0 | 0.2204 | 0.2623 |
| 0.65 | 90.0 | -0.2498 | 0.2284 |
| 0.65 | 102.0 | 0.0753 | 0.2431 |
| 0.65 | 114.0 | -0.0384 | 0.2153 |
| 0.65 | 126.0 | -0.2442 | 0.2111 |
| 0.65 | 198.0 | -0.4011 | 0.2324 |
| 0.65 | 210.0 | -0.4504 | 0.262 |
| 0.65 | 222.0 | 0.1687 | 0.2556 |
| 0.65 | 234.0 | -0.2033 | 0.243 |
| 0.65 | 294.0 | -0.1977 | 0.2064 |
| 0.65 | 306.0 | -0.1607 | 0.2533 |
| 0.75 | 66.0 | -0.0707 | 0.2723 |
| 0.75 | 78.0 | 0.3624 | 0.2082 |
| 0.75 | 102.0 | 0.1996 | 0.2213 |
| 0.75 | 114.0 | 0.1316 | 0.1943 |
| 0.75 | 126.0 | 0.2426 | 0.2802 |
| 0.75 | 138.0 | -0.043 | 0.2757 |
| 0.75 | 198.0 | -0.3881 | 0.2322 |
| 0.75 | 210.0 | -0.0672 | 0.2208 |
| 0.75 | 222.0 | -0.135 | 0.2269 |
| 0.75 | 234.0 | -0.1434 | 0.2312 |
| 0.75 | 246.0 | 0.1538 | 0.2512 |
| 0.75 | 258.0 | -0.022 | 0.2684 |
| 0.75 | 282.0 | 0.0058 | 0.2739 |
| 0.75 | 294.0 | -0.051 | 0.2547 |
| 0.85 | 66.0 | 0.1652 | 0.2154 |
| 0.85 | 78.0 | -0.2078 | 0.1697 |
| 0.85 | 90.0 | -0.008 | 0.1794 |
| 0.85 | 102.0 | -0.1417 | 0.2533 |
| 0.85 | 114.0 | -0.0174 | 0.2858 |
| 0.85 | 186.0 | 0.2001 | 0.266 |
| 0.85 | 198.0 | -0.1303 | 0.1962 |
| 0.85 | 210.0 | 0.2683 | 0.1744 |
| 0.85 | 222.0 | -0.0431 | 0.2066 |
| 0.85 | 234.0 | 0.0571 | 0.185 |
| 0.85 | 246.0 | -0.0116 | 0.1581 |
| 0.85 | 258.0 | 0.3348 | 0.1803 |
| 0.85 | 270.0 | 0.2843 | 0.2555 |
| 0.95 | 78.0 | 0.5021 | 0.2395 |
| 0.95 | 90.0 | -0.1573 | 0.2492 |
| 0.95 | 186.0 | -0.2312 | 0.2606 |
| 0.95 | 198.0 | -0.351 | 0.2402 |
| 0.95 | 210.0 | -0.3825 | 0.2314 |
| 0.95 | 222.0 | -0.4217 | 0.2118 |
| 0.95 | 234.0 | -0.0007 | 0.2303 |
| 0.95 | 246.0 | -0.0122 | 0.1859 |
| 0.95 | 258.0 | 0.0158 | 0.2017 |
| 0.95 | 270.0 | -0.1875 | 0.1952 |
| 0.95 | 282.0 | 0.0342 | 0.2289 |
| 0.95 | 294.0 | -0.3202 | 0.2209 |
Experiment comment: