Measurement E151M2237
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALL | |
| εL: | 0.3899 | |
| Q2: | 0.205 GeV2 | |
| W: | 1415.0 GeV | |
| Ebeam: | 2.999 GeV | |
| ε: | 0.9509 | |
| cos(θπ+) | φ(π+), [deg] | ALL | uncertainty |
|---|---|---|---|
| 0.05 | 66.0 | -0.2574 | 0.7153 |
| 0.05 | 306.0 | 0.1133 | 0.7818 |
| 0.15 | 54.0 | -1.4431 | 0.6489 |
| 0.15 | 66.0 | -0.4416 | 0.6076 |
| 0.15 | 78.0 | -1.2426 | 0.8304 |
| 0.15 | 294.0 | -0.5835 | 0.616 |
| 0.15 | 306.0 | 0.2691 | 0.6638 |
| 0.25 | 54.0 | 1.1005 | 0.7857 |
| 0.25 | 66.0 | -0.0905 | 0.6044 |
| 0.25 | 78.0 | -0.0071 | 0.6967 |
| 0.25 | 282.0 | -0.206 | 0.678 |
| 0.25 | 294.0 | -0.5106 | 0.5311 |
| 0.25 | 306.0 | -1.191 | 0.5111 |
| 0.35 | 54.0 | -1.6902 | 0.8667 |
| 0.35 | 66.0 | -0.0871 | 0.6097 |
| 0.35 | 78.0 | 1.5547 | 0.6411 |
| 0.35 | 282.0 | 0.2176 | 0.5431 |
| 0.35 | 294.0 | -0.1046 | 0.5458 |
| 0.35 | 306.0 | 0.3803 | 0.6418 |
| 0.45 | 54.0 | 0.2752 | 0.6926 |
| 0.45 | 66.0 | 0.6524 | 0.6761 |
| 0.45 | 78.0 | 0.4138 | 0.7276 |
| 0.45 | 90.0 | 0.3586 | 0.8344 |
| 0.45 | 102.0 | -0.6176 | 0.945 |
| 0.45 | 270.0 | -0.211 | 0.7262 |
| 0.45 | 282.0 | 0.1875 | 0.6694 |
| 0.45 | 294.0 | 0.2431 | 0.5062 |
| 0.55 | 54.0 | 1.6134 | 0.7803 |
| 0.55 | 66.0 | 0.7241 | 0.752 |
| 0.55 | 78.0 | -0.7114 | 0.8361 |
| 0.55 | 90.0 | 0.5164 | 0.552 |
| 0.55 | 102.0 | 0.6621 | 0.5539 |
| 0.55 | 114.0 | -1.1548 | 0.6672 |
| 0.55 | 258.0 | 0.5262 | 0.8198 |
| 0.55 | 270.0 | -0.2763 | 0.7238 |
| 0.55 | 282.0 | 0.4329 | 0.5542 |
| 0.55 | 294.0 | 0.8264 | 0.6905 |
| 0.55 | 306.0 | 1.5417 | 0.533 |
| 0.65 | 66.0 | 0.9036 | 0.8905 |
| 0.65 | 78.0 | -0.7164 | 0.5537 |
| 0.65 | 90.0 | 0.1784 | 0.4062 |
| 0.65 | 102.0 | -0.1104 | 0.4602 |
| 0.65 | 114.0 | 0.7178 | 0.464 |
| 0.65 | 126.0 | 1.5556 | 0.5594 |
| 0.65 | 234.0 | -0.8049 | 0.9125 |
| 0.65 | 246.0 | -0.1187 | 0.538 |
| 0.65 | 258.0 | 1.3885 | 0.5079 |
| 0.65 | 270.0 | -0.8795 | 0.5321 |
| 0.65 | 282.0 | 0.3406 | 0.5743 |
| 0.65 | 294.0 | -0.7132 | 0.8389 |
| 0.65 | 306.0 | -0.32 | 0.7466 |
| 0.75 | 54.0 | -0.2741 | 0.9165 |
| 0.75 | 66.0 | 0.5054 | 0.6565 |
| 0.75 | 78.0 | 0.7907 | 0.426 |
| 0.75 | 90.0 | 0.5245 | 0.3659 |
| 0.75 | 102.0 | -0.23 | 0.4056 |
| 0.75 | 114.0 | 0.959 | 0.484 |
| 0.75 | 126.0 | 0.6606 | 0.4906 |
| 0.75 | 138.0 | 0.6026 | 0.7436 |
| 0.75 | 210.0 | -0.4963 | 0.8776 |
| 0.75 | 222.0 | 0.307 | 0.5473 |
| 0.75 | 234.0 | 0.1302 | 0.522 |
| 0.75 | 246.0 | -0.0069 | 0.4238 |
| 0.75 | 258.0 | -0.0378 | 0.4302 |
| 0.75 | 270.0 | 0.4978 | 0.4274 |
| 0.75 | 282.0 | -0.5195 | 0.5178 |
| 0.75 | 294.0 | -0.0592 | 0.7092 |
| 0.85 | 54.0 | -0.8151 | 0.6187 |
| 0.85 | 66.0 | -0.0259 | 0.4872 |
| 0.85 | 78.0 | 1.3829 | 0.7352 |
| 0.85 | 90.0 | -0.3937 | 0.4429 |
| 0.85 | 102.0 | -0.0286 | 0.4088 |
| 0.85 | 114.0 | 0.0582 | 0.4311 |
| 0.85 | 126.0 | 0.3429 | 0.4637 |
| 0.85 | 138.0 | 0.0765 | 0.6787 |
| 0.85 | 150.0 | 0.7095 | 0.8059 |
| 0.85 | 174.0 | 0.6419 | 0.9209 |
| 0.85 | 186.0 | 1.0097 | 0.8961 |
| 0.85 | 198.0 | 0.7245 | 0.6188 |
| 0.85 | 210.0 | 0.3244 | 0.627 |
| 0.85 | 222.0 | -0.2436 | 0.5235 |
| 0.85 | 234.0 | 0.3746 | 0.4126 |
| 0.85 | 246.0 | 0.7376 | 0.3878 |
| 0.85 | 258.0 | 0.3059 | 0.3323 |
| 0.85 | 270.0 | -0.2291 | 0.361 |
| 0.85 | 282.0 | 0.579 | 0.4226 |
| 0.85 | 294.0 | -0.261 | 0.4857 |
| 0.85 | 306.0 | -0.8818 | 0.5566 |
| 0.95 | 54.0 | 0.5956 | 0.8221 |
| 0.95 | 66.0 | -0.9505 | 0.5435 |
| 0.95 | 90.0 | 0.099 | 0.7246 |
| 0.95 | 102.0 | 0.2951 | 0.6038 |
| 0.95 | 114.0 | 0.9954 | 0.5027 |
| 0.95 | 126.0 | 0.7481 | 0.5644 |
| 0.95 | 138.0 | -0.6228 | 0.6304 |
| 0.95 | 150.0 | 0.0208 | 0.8294 |
| 0.95 | 162.0 | 2.4303 | 2.4303 |
| 0.95 | 174.0 | -0.1487 | 0.7433 |
| 0.95 | 186.0 | 1.3032 | 0.5955 |
| 0.95 | 198.0 | -0.502 | 0.7109 |
| 0.95 | 210.0 | 0.3466 | 0.5854 |
| 0.95 | 222.0 | -0.5379 | 0.4964 |
| 0.95 | 234.0 | 0.6356 | 0.4668 |
| 0.95 | 246.0 | -0.2932 | 0.4262 |
| 0.95 | 258.0 | 0.1375 | 0.3828 |
| 0.95 | 270.0 | 0.2439 | 0.3874 |
| 0.95 | 282.0 | -0.677 | 0.3782 |
| 0.95 | 294.0 | -0.4367 | 0.3567 |
| 0.95 | 306.0 | 0.3297 | 0.4395 |
| 0.95 | 318.0 | 0.1468 | 0.5922 |
| 0.95 | 330.0 | 0.8765 | 0.8317 |
Experiment comment: