Measurement E213M1138
| 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: | 1.95 — 1.975 GeV | |
| Ebeam: | 5.754 GeV | |
| θ(π−), [deg] | dσ/d(−cos(θ(π−))), [μb/rad] | uncertainty | syst. uncert. | total uncert. |
|---|---|---|---|---|
| 9.0 | 1.2496 | 0.1484 | 0.2906 | 0.3263 |
| 27.0 | 1.3855 | 0.1001 | 0.2491 | 0.2685 |
| 45.0 | 1.3082 | 0.0957 | 0.2407 | 0.259 |
| 63.0 | 1.2648 | 0.097 | 0.2393 | 0.2582 |
| 81.0 | 1.2629 | 0.0766 | 0.2391 | 0.2511 |
| 99.0 | 1.1927 | 0.0774 | 0.2305 | 0.2432 |
| 117.0 | 0.8271 | 0.0572 | 0.1798 | 0.1887 |
| 135.0 | 0.7173 | 0.0624 | 0.1576 | 0.1695 |
| 153.0 | 0.8131 | 0.0764 | 0.1565 | 0.1742 |
| 171.0 | 0.755 | 0.1052 | 0.2106 | 0.2354 |
Experiment comment: