Measurement E213M1031
| 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: | 1.65 — 1.675 GeV | |
| Ebeam: | 5.754 GeV | |
| θ(π+), [deg] | dσ/d(−cos(θ(π+))), [μb/rad] | uncertainty | syst. uncert. | total uncert. |
|---|---|---|---|---|
| 9.0 | 1.4872 | 0.14 | 0.1872 | 0.2338 |
| 27.0 | 1.5304 | 0.1015 | 0.1762 | 0.2033 |
| 45.0 | 1.3008 | 0.1174 | 0.1564 | 0.1955 |
| 63.0 | 1.2101 | 0.0946 | 0.1461 | 0.174 |
| 81.0 | 1.1236 | 0.0639 | 0.1342 | 0.1486 |
| 99.0 | 1.1748 | 0.0678 | 0.1391 | 0.1547 |
| 117.0 | 1.1484 | 0.0591 | 0.1353 | 0.1941 |
| 135.0 | 0.8956 | 0.0713 | 0.1289 | 0.184 |
| 153.0 | 0.97 | 0.0856 | 0.4073 | 0.5819 |
| 171.0 | 1.2647 | 0.0034 | 0.7567 | 1.0678 |
Experiment comment: