Measurement E213M454
| 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: | 2.4 — 3.0 GeV2 | |
| W: | 1.5 — 1.525 GeV | |
| Ebeam: | 5.754 GeV | |
| θ(π−), [deg] | dσ/d(−cos(θ(π−))), [μb/rad] | uncertainty | syst. uncert. | total uncert. |
|---|---|---|---|---|
| 9.0 | 2.1741 | 0.2126 | 0.5083 | 0.551 |
| 27.0 | 2.6196 | 0.1631 | 0.4149 | 0.4458 |
| 45.0 | 2.131 | 0.1074 | 0.3434 | 0.3598 |
| 63.0 | 2.0188 | 0.0965 | 0.3151 | 0.3296 |
| 81.0 | 1.4485 | 0.086 | 0.2332 | 0.2485 |
| 99.0 | 1.4579 | 0.081 | 0.2314 | 0.2452 |
| 117.0 | 1.445 | 0.066 | 0.2261 | 0.2355 |
| 135.0 | 1.7545 | 0.0805 | 0.2674 | 0.2793 |
| 153.0 | 1.7893 | 0.0926 | 0.2801 | 0.295 |
| 171.0 | 1.7328 | 0.1989 | 0.3466 | 0.4848 |
Experiment comment: