Measurement E213M1140
| 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: | 1.95 — 1.975 GeV | |
| Ebeam: | 5.754 GeV | |
| θ(p), [deg] | dσ/d(−cos(θ(p))), [μb/rad] | uncertainty | syst. uncert. | total uncert. |
|---|---|---|---|---|
| 9.0 | 0.366 | 0.0382 | 0.1235 | 0.1293 |
| 27.0 | 0.4266 | 0.0374 | 0.0942 | 0.1014 |
| 45.0 | 0.5303 | 0.0437 | 0.1202 | 0.1279 |
| 63.0 | 0.6798 | 0.0564 | 0.1867 | 0.195 |
| 81.0 | 0.9344 | 0.0765 | 0.2231 | 0.2358 |
| 99.0 | 1.2762 | 0.0913 | 0.2638 | 0.2791 |
| 117.0 | 1.2902 | 0.0794 | 0.2704 | 0.2818 |
| 135.0 | 1.3897 | 0.0897 | 0.294 | 0.3074 |
| 153.0 | 1.5911 | 0.1034 | 0.3155 | 0.332 |
| 171.0 | 2.2648 | 0.1654 | 0.3963 | 0.4295 |
Experiment comment: