Measurement E213M409
| 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: | 2.0 — 2.4 GeV2 | |
| W: | 2.1 — 2.125 GeV | |
| Ebeam: | 5.754 GeV | |
| θ(π−), [deg] | dσ/d(−cos(θ(π−))), [μb/rad] | uncertainty | syst. uncert. | total uncert. |
|---|---|---|---|---|
| 9.0 | 4.3719 | 0.2654 | 0.5588 | 0.6186 |
| 27.0 | 3.3218 | 0.1493 | 0.3767 | 0.4052 |
| 45.0 | 2.489 | 0.1148 | 0.2963 | 0.3177 |
| 63.0 | 2.099 | 0.0924 | 0.277 | 0.292 |
| 81.0 | 2.0826 | 0.1065 | 0.3029 | 0.3211 |
| 99.0 | 1.8002 | 0.0955 | 0.3045 | 0.3191 |
| 117.0 | 1.749 | 0.0849 | 0.3103 | 0.3217 |
| 135.0 | 1.7697 | 0.1026 | 0.3149 | 0.3312 |
| 153.0 | 2.138 | 0.1326 | 0.3621 | 0.3856 |
| 171.0 | 1.7212 | 0.2128 | 0.4651 | 0.5115 |
Experiment comment: