Measurement E213M959
| 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: | 1.45 — 1.475 GeV | |
| Ebeam: | 5.754 GeV | |
| θ(π+), [deg] | dσ/d(−cos(θ(π+))), [μb/rad] | uncertainty | syst. uncert. | total uncert. |
|---|---|---|---|---|
| 9.0 | 0.6758 | 0.0913 | 0.0881 | 0.1269 |
| 27.0 | 0.8073 | 0.0599 | 0.0872 | 0.1058 |
| 45.0 | 0.7601 | 0.0542 | 0.0824 | 0.0986 |
| 63.0 | 0.605 | 0.0492 | 0.0682 | 0.0841 |
| 81.0 | 0.5604 | 0.0456 | 0.0616 | 0.0767 |
| 99.0 | 0.5565 | 0.048 | 0.0608 | 0.0775 |
| 117.0 | 0.4507 | 0.0401 | 0.0535 | 0.0668 |
| 135.0 | 0.4466 | 0.0541 | 0.0731 | 0.0909 |
| 153.0 | 0.4602 | 0.0037 | 0.2741 | 0.1854 |
| 171.0 | 0.5022 | 0.0026 | 0.2991 | 0.2087 |
Experiment comment: