Measurement E213M1085
| 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: | 1.8 — 1.825 GeV | |
| Ebeam: | 5.754 GeV | |
| θ(π+), [deg] | dσ/d(−cos(θ(π+))), [μb/rad] | uncertainty | syst. uncert. | total uncert. |
|---|---|---|---|---|
| 9.0 | 1.6612 | 0.1431 | 0.1759 | 0.2268 |
| 27.0 | 1.371 | 0.1035 | 0.146 | 0.179 |
| 45.0 | 1.4177 | 0.1306 | 0.1611 | 0.2074 |
| 63.0 | 1.3361 | 0.0916 | 0.1524 | 0.1778 |
| 81.0 | 1.2921 | 0.0739 | 0.1556 | 0.1723 |
| 99.0 | 1.4536 | 0.1151 | 0.157 | 0.1946 |
| 117.0 | 1.2126 | 0.071 | 0.1373 | 0.1546 |
| 135.0 | 1.0594 | 0.1059 | 0.141 | 0.1763 |
| 153.0 | 0.8336 | 0.1023 | 0.3067 | 0.3233 |
| 171.0 | 1.1629 | 0.0026 | 0.6774 | 0.6774 |
Experiment comment: