Measurement E213M985
| 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: | 1.525 — 1.55 GeV | |
| Ebeam: | 5.754 GeV | |
| θ(π−), [deg] | dσ/d(−cos(θ(π−))), [μb/rad] | uncertainty | syst. uncert. | total uncert. |
|---|---|---|---|---|
| 9.0 | 0.98 | 0.1234 | 0.2717 | 0.2984 |
| 27.0 | 1.3615 | 0.1216 | 0.2575 | 0.2848 |
| 45.0 | 0.8375 | 0.0611 | 0.1642 | 0.1752 |
| 63.0 | 0.8851 | 0.0659 | 0.1648 | 0.1775 |
| 81.0 | 0.6878 | 0.0682 | 0.1319 | 0.1485 |
| 99.0 | 0.6011 | 0.0537 | 0.1173 | 0.129 |
| 117.0 | 0.514 | 0.0462 | 0.1046 | 0.1144 |
| 135.0 | 0.6602 | 0.0531 | 0.1279 | 0.1385 |
| 153.0 | 0.6472 | 0.0617 | 0.1332 | 0.1468 |
| 171.0 | 0.4835 | 0.1533 | 0.1604 | 0.2218 |
Experiment comment: