Measurement E213M1058
| 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: | 1.725 — 1.75 GeV | |
| Ebeam: | 5.754 GeV | |
| θ(π+), [deg] | dσ/d(−cos(θ(π+))), [μb/rad] | uncertainty | syst. uncert. | total uncert. |
|---|---|---|---|---|
| 9.0 | 1.846 | 0.2264 | 0.1953 | 0.299 |
| 27.0 | 1.9628 | 0.1302 | 0.2022 | 0.2405 |
| 45.0 | 1.4495 | 0.1022 | 0.1585 | 0.1886 |
| 63.0 | 1.6775 | 0.1228 | 0.1834 | 0.2208 |
| 81.0 | 1.6109 | 0.0816 | 0.1788 | 0.1966 |
| 99.0 | 1.6141 | 0.0919 | 0.1752 | 0.1979 |
| 117.0 | 1.5658 | 0.1006 | 0.1712 | 0.1985 |
| 135.0 | 1.2242 | 0.0839 | 0.1655 | 0.1856 |
| 153.0 | 1.1032 | 0.1366 | 0.4278 | 0.449 |
| 171.0 | 1.4422 | 0.0031 | 0.8503 | 1.2404 |
Experiment comment: