Measurement E213M1148
| 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: | 1.975 — 2.0 GeV | |
| Ebeam: | 5.754 GeV | |
| θ(π+), [deg] | dσ/d(−cos(θ(π+))), [μb/rad] | uncertainty | syst. uncert. | total uncert. |
|---|---|---|---|---|
| 9.0 | 1.6457 | 0.1365 | 0.2316 | 0.2688 |
| 27.0 | 1.9204 | 0.1679 | 0.2697 | 0.3177 |
| 45.0 | 1.359 | 0.1143 | 0.2591 | 0.2832 |
| 63.0 | 1.1452 | 0.0862 | 0.2124 | 0.2292 |
| 81.0 | 1.0377 | 0.0881 | 0.1837 | 0.2037 |
| 99.0 | 1.0462 | 0.0842 | 0.1743 | 0.1936 |
| 117.0 | 0.7481 | 0.1934 | 0.1388 | 0.2381 |
| 135.0 | 0.7388 | 0.0636 | 0.1464 | 0.1596 |
| 153.0 | 0.5629 | 0.0572 | 0.2408 | 0.2475 |
| 171.0 | 1.0027 | 0.0027 | 0.608 | 0.608 |
Experiment comment: