Measurement E213M1139
| 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: | 1.95 — 1.975 GeV | |
| Ebeam: | 5.754 GeV | |
| θ(π+), [deg] | dσ/d(−cos(θ(π+))), [μb/rad] | uncertainty | syst. uncert. | total uncert. |
|---|---|---|---|---|
| 9.0 | 1.7329 | 0.1392 | 0.2818 | 0.3143 |
| 27.0 | 1.6613 | 0.1473 | 0.2771 | 0.3139 |
| 45.0 | 1.2212 | 0.1108 | 0.2641 | 0.2864 |
| 63.0 | 1.2435 | 0.1005 | 0.246 | 0.2657 |
| 81.0 | 1.3562 | 0.1185 | 0.2508 | 0.2774 |
| 99.0 | 1.0899 | 0.0667 | 0.2041 | 0.2148 |
| 117.0 | 1.0892 | 0.1004 | 0.1991 | 0.223 |
| 135.0 | 0.792 | 0.0612 | 0.1739 | 0.1843 |
| 153.0 | 0.811 | 0.1 | 0.3071 | 0.323 |
| 171.0 | 1.1047 | 0.0029 | 0.6937 | 0.6937 |
Experiment comment: