Measurement E213M1221
| 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: | 4.2 — 5.0 GeV2 | |
| W: | 1.45 — 1.475 GeV | |
| Ebeam: | 5.754 GeV | |
| θ(p), [deg] | dσ/d(−cos(θ(p))), [μb/rad] | uncertainty | syst. uncert. | total uncert. |
|---|---|---|---|---|
| 9.0 | 0.2472 | 0.0442 | 0.1155 | 0.1624 |
| 27.0 | 0.2053 | 0.0293 | 0.0688 | 0.105 |
| 45.0 | 0.2227 | 0.0411 | 0.0628 | 0.0751 |
| 63.0 | 0.2715 | 0.0425 | 0.0585 | 0.0724 |
| 81.0 | 0.3729 | 0.0483 | 0.0637 | 0.0799 |
| 99.0 | 0.3436 | 0.0399 | 0.059 | 0.0713 |
| 117.0 | 0.5146 | 0.048 | 0.0805 | 0.0937 |
| 135.0 | 0.4617 | 0.0472 | 0.0757 | 0.0892 |
| 153.0 | 0.5252 | 0.0676 | 0.088 | 0.1314 |
| 171.0 | 0.565 | 0.0947 | 0.1228 | 0.175 |
Experiment comment: