Measurement E213M940
| Experiment: | E1-6, 2025 | |
|---|---|---|
| Year: | 2001 | |
| Spokespersons: | R.W. Gothe, A. Trivedi | |
| Reaction: | ep → π+π−p | |
| Polarization: | none | |
| Quantity: | dσ/d(−cos(θ(π−))) | |
| Q2: | 3.5 — 4.2 GeV2 | |
| W: | 1.4 — 1.425 GeV | |
| Ebeam: | 5.754 GeV | |
| θ(π−), [deg] | dσ/d(−cos(θ(π−))), [μb/rad] | uncertainty | syst. uncert. | total uncert. |
|---|---|---|---|---|
| 9.0 | 0.2737 | 0.0126 | 0.1859 | 0.1863 |
| 27.0 | 0.279 | 0.0237 | 0.1507 | 0.1525 |
| 45.0 | 0.3084 | 0.0281 | 0.1264 | 0.1295 |
| 63.0 | 0.3672 | 0.0334 | 0.1212 | 0.1257 |
| 81.0 | 0.3478 | 0.0324 | 0.1097 | 0.1144 |
| 99.0 | 0.3458 | 0.0326 | 0.1076 | 0.1125 |
| 117.0 | 0.3927 | 0.035 | 0.1184 | 0.1234 |
| 135.0 | 0.428 | 0.0438 | 0.1323 | 0.1394 |
| 153.0 | 0.3932 | 0.044 | 0.147 | 0.1534 |
| 171.0 | 0.3485 | 0.0269 | 0.2145 | 0.2162 |
Experiment comment: