Measurement E213M509
| 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: | 1.65 — 1.675 GeV | |
| Ebeam: | 5.754 GeV | |
| θ(π+), [deg] | dσ/d(−cos(θ(π+))), [μb/rad] | uncertainty | syst. uncert. | total uncert. |
|---|---|---|---|---|
| 9.0 | 2.8484 | 0.1699 | 0.4374 | 0.642 |
| 27.0 | 2.6578 | 0.1069 | 0.3805 | 0.3953 |
| 45.0 | 2.1888 | 0.1122 | 0.3369 | 0.3551 |
| 63.0 | 1.8905 | 0.1031 | 0.2902 | 0.308 |
| 81.0 | 1.9725 | 0.0899 | 0.2962 | 0.3095 |
| 99.0 | 2.1474 | 0.0933 | 0.3169 | 0.3303 |
| 117.0 | 2.2732 | 0.0852 | 0.3358 | 0.3465 |
| 135.0 | 1.9698 | 0.1049 | 0.3641 | 0.5445 |
| 153.0 | 1.7906 | 0.1028 | 0.891 | 1.2684 |
| 171.0 | 2.3919 | 0.0037 | 1.4929 | 2.1189 |
Experiment comment: