Measurement E213M1104
| Experiment: | E1-6, 2025 | |
|---|---|---|
| Year: | 2001 | |
| Spokespersons: | R.W. Gothe, A. Trivedi | |
| Reaction: | ep → π+π−p | |
| Polarization: | none | |
| Quantity: | dσ/d(−cos(θ(p))) | |
| Q2: | 3.5 — 4.2 GeV2 | |
| W: | 1.85 — 1.875 GeV | |
| Ebeam: | 5.754 GeV | |
| θ(p), [deg] | dσ/d(−cos(θ(p))), [μb/rad] | uncertainty | syst. uncert. | total uncert. |
|---|---|---|---|---|
| 9.0 | 0.5121 | 0.0536 | 0.1433 | 0.153 |
| 27.0 | 0.5494 | 0.0433 | 0.1016 | 0.1105 |
| 45.0 | 0.6289 | 0.0449 | 0.1057 | 0.1149 |
| 63.0 | 0.7699 | 0.0618 | 0.1455 | 0.1581 |
| 81.0 | 1.2521 | 0.0915 | 0.2156 | 0.2342 |
| 99.0 | 1.4067 | 0.1125 | 0.2192 | 0.2464 |
| 117.0 | 1.5325 | 0.1407 | 0.2334 | 0.2726 |
| 135.0 | 1.4459 | 0.0946 | 0.2308 | 0.2494 |
| 153.0 | 1.572 | 0.108 | 0.2375 | 0.2609 |
| 171.0 | 1.8985 | 0.1439 | 0.275 | 0.3104 |
Experiment comment: