Measurement E213M1121
| 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: | 1.9 — 1.925 GeV | |
| Ebeam: | 5.754 GeV | |
| θ(π+), [deg] | dσ/d(−cos(θ(π+))), [μb/rad] | uncertainty | syst. uncert. | total uncert. |
|---|---|---|---|---|
| 9.0 | 1.585 | 0.134 | 0.1997 | 0.2405 |
| 27.0 | 1.626 | 0.1159 | 0.2027 | 0.2335 |
| 45.0 | 1.4564 | 0.1489 | 0.2181 | 0.2641 |
| 63.0 | 1.2476 | 0.1018 | 0.1801 | 0.2069 |
| 81.0 | 1.2115 | 0.1118 | 0.1787 | 0.2108 |
| 99.0 | 1.4356 | 0.1026 | 0.1875 | 0.2138 |
| 117.0 | 1.1001 | 0.1298 | 0.152 | 0.1999 |
| 135.0 | 0.9139 | 0.0892 | 0.1549 | 0.1787 |
| 153.0 | 0.7358 | 0.0679 | 0.2978 | 0.3054 |
| 171.0 | 1.1542 | 0.0027 | 0.6863 | 0.6863 |
Experiment comment: