Measurement E213M1157
| 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: | 2.0 — 2.025 GeV | |
| Ebeam: | 5.754 GeV | |
| θ(π+), [deg] | dσ/d(−cos(θ(π+))), [μb/rad] | uncertainty | syst. uncert. | total uncert. |
|---|---|---|---|---|
| 9.0 | 1.8646 | 0.1396 | 0.2344 | 0.2728 |
| 27.0 | 1.6563 | 0.1458 | 0.2206 | 0.2645 |
| 45.0 | 1.0692 | 0.0727 | 0.2043 | 0.2169 |
| 63.0 | 1.0419 | 0.0736 | 0.1885 | 0.2024 |
| 81.0 | 1.0974 | 0.0662 | 0.173 | 0.1853 |
| 99.0 | 0.9755 | 0.0812 | 0.1557 | 0.1756 |
| 117.0 | 0.8009 | 0.0467 | 0.1322 | 0.1402 |
| 135.0 | 0.6214 | 0.0436 | 0.1211 | 0.1288 |
| 153.0 | 0.5638 | 0.0769 | 0.213 | 0.2264 |
| 171.0 | 0.9206 | 0.0029 | 0.5522 | 0.5522 |
Experiment comment: