Measurement E151M3476
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.5435 | |
| Q2: | 0.496 GeV2 | |
| W: | 1445.0 GeV | |
| Ebeam: | 2.999 GeV | |
| ε: | 0.903 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.15 | 294.0 | 0.3442 | 0.2359 |
| 0.45 | 90.0 | -0.6249 | 0.2007 |
| 0.45 | 102.0 | -0.4122 | 0.2424 |
| 0.55 | 78.0 | 0.1492 | 0.2168 |
| 0.55 | 90.0 | -0.5532 | 0.2149 |
| 0.55 | 102.0 | 0.0036 | 0.2184 |
| 0.65 | 54.0 | -0.1621 | 0.2705 |
| 0.65 | 78.0 | 0.1782 | 0.2065 |
| 0.65 | 90.0 | -0.1521 | 0.2196 |
| 0.65 | 102.0 | -0.298 | 0.2555 |
| 0.65 | 114.0 | 0.2216 | 0.2403 |
| 0.65 | 258.0 | 0.0272 | 0.2576 |
| 0.65 | 270.0 | -0.1815 | 0.2475 |
| 0.75 | 54.0 | 0.0718 | 0.2596 |
| 0.75 | 78.0 | -0.0046 | 0.2154 |
| 0.75 | 90.0 | 0.0202 | 0.2208 |
| 0.75 | 102.0 | 0.2036 | 0.215 |
| 0.75 | 114.0 | 0.3103 | 0.2143 |
| 0.75 | 222.0 | -0.2743 | 0.2624 |
| 0.75 | 246.0 | 0.2213 | 0.2347 |
| 0.75 | 258.0 | -0.3837 | 0.1941 |
| 0.75 | 270.0 | -0.2687 | 0.1859 |
| 0.75 | 282.0 | 0.0894 | 0.2477 |
| 0.85 | 54.0 | 0.1695 | 0.2057 |
| 0.85 | 78.0 | -0.1448 | 0.2415 |
| 0.85 | 90.0 | -0.0773 | 0.2151 |
| 0.85 | 102.0 | -0.1321 | 0.2251 |
| 0.85 | 210.0 | 0.138 | 0.2424 |
| 0.85 | 222.0 | -0.1122 | 0.2341 |
| 0.85 | 234.0 | 0.1104 | 0.2381 |
| 0.85 | 246.0 | 0.1223 | 0.2058 |
| 0.85 | 258.0 | -0.2376 | 0.2406 |
| 0.85 | 270.0 | -0.0856 | 0.242 |
| 0.85 | 282.0 | 0.115 | 0.2275 |
| 0.85 | 294.0 | -0.1943 | 0.2298 |
| 0.85 | 306.0 | 0.1626 | 0.2003 |
| 0.85 | 318.0 | -0.1428 | 0.2047 |
| 0.95 | 234.0 | 0.0559 | 0.2635 |
| 0.95 | 258.0 | 0.3543 | 0.2147 |
| 0.95 | 282.0 | 0.0353 | 0.2563 |
| 0.95 | 306.0 | 0.1105 | 0.2596 |
| 0.95 | 318.0 | -0.1297 | 0.2146 |
| 0.95 | 330.0 | 0.0891 | 0.2514 |
Experiment comment: