Measurement E213M1257
| 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: | 1.55 — 1.575 GeV | |
| Ebeam: | 5.754 GeV | |
| θ(p), [deg] | dσ/d(−cos(θ(p))), [μb/rad] | uncertainty | syst. uncert. | total uncert. |
|---|---|---|---|---|
| 9.0 | 0.1605 | 0.0168 | 0.0995 | 0.1535 |
| 27.0 | 0.1389 | 0.0197 | 0.0627 | 0.1013 |
| 45.0 | 0.1833 | 0.0207 | 0.0656 | 0.0964 |
| 63.0 | 0.3311 | 0.0347 | 0.0875 | 0.0942 |
| 81.0 | 0.431 | 0.0505 | 0.1005 | 0.1125 |
| 99.0 | 0.4538 | 0.0413 | 0.1044 | 0.1123 |
| 117.0 | 0.4953 | 0.0431 | 0.1125 | 0.1205 |
| 135.0 | 0.6492 | 0.0662 | 0.1398 | 0.2023 |
| 153.0 | 0.6255 | 0.0642 | 0.1397 | 0.199 |
| 171.0 | 0.5039 | 0.0734 | 0.1492 | 0.2069 |
Experiment comment: