Measurement E213M581
| 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: | 1.85 — 1.875 GeV | |
| Ebeam: | 5.754 GeV | |
| θ(π+), [deg] | dσ/d(−cos(θ(π+))), [μb/rad] | uncertainty | syst. uncert. | total uncert. |
|---|---|---|---|---|
| 9.0 | 2.7309 | 0.1434 | 0.3437 | 0.4859 |
| 27.0 | 2.7387 | 0.1342 | 0.3414 | 0.4848 |
| 45.0 | 2.2962 | 0.1369 | 0.3142 | 0.4463 |
| 63.0 | 2.3783 | 0.1046 | 0.3158 | 0.3327 |
| 81.0 | 2.4361 | 0.1087 | 0.3291 | 0.3466 |
| 99.0 | 2.53 | 0.0771 | 0.3311 | 0.3399 |
| 117.0 | 2.3738 | 0.0988 | 0.3206 | 0.3354 |
| 135.0 | 1.8802 | 0.084 | 0.326 | 0.4667 |
| 153.0 | 1.5289 | 0.093 | 0.5995 | 0.8548 |
| 171.0 | 2.1403 | 0.0032 | 1.2857 | 1.8024 |
Experiment comment: