Measurement E213M1149
| 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: | 3.5 — 4.2 GeV2 | |
| W: | 1.975 — 2.0 GeV | |
| Ebeam: | 5.754 GeV | |
| θ(p), [deg] | dσ/d(−cos(θ(p))), [μb/rad] | uncertainty | syst. uncert. | total uncert. |
|---|---|---|---|---|
| 9.0 | 0.2953 | 0.0383 | 0.0987 | 0.1059 |
| 27.0 | 0.4007 | 0.056 | 0.0777 | 0.0958 |
| 45.0 | 0.4815 | 0.0707 | 0.1051 | 0.1267 |
| 63.0 | 0.6184 | 0.049 | 0.1739 | 0.1806 |
| 81.0 | 0.9066 | 0.0522 | 0.2069 | 0.2133 |
| 99.0 | 1.1528 | 0.0834 | 0.2337 | 0.2481 |
| 117.0 | 1.2347 | 0.0651 | 0.243 | 0.2516 |
| 135.0 | 1.53 | 0.1041 | 0.2835 | 0.3021 |
| 153.0 | 1.6671 | 0.123 | 0.2974 | 0.3219 |
| 171.0 | 2.3145 | 0.1899 | 0.3538 | 0.4016 |
Experiment comment: