Measurement E213M949
| 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: | 1.425 — 1.45 GeV | |
| Ebeam: | 5.754 GeV | |
| θ(π−), [deg] | dσ/d(−cos(θ(π−))), [μb/rad] | uncertainty | syst. uncert. | total uncert. |
|---|---|---|---|---|
| 9.0 | 0.3429 | 0.0563 | 0.193 | 0.5888 |
| 27.0 | 0.6875 | 0.094 | 0.2041 | 0.2247 |
| 45.0 | 0.6203 | 0.0596 | 0.1749 | 0.1848 |
| 63.0 | 0.4657 | 0.0547 | 0.1288 | 0.1399 |
| 81.0 | 0.3414 | 0.0802 | 0.0972 | 0.126 |
| 99.0 | 0.4243 | 0.0379 | 0.1171 | 0.1231 |
| 117.0 | 0.4758 | 0.0499 | 0.1298 | 0.1391 |
| 135.0 | 0.4397 | 0.0456 | 0.1225 | 0.1307 |
| 153.0 | 0.5137 | 0.0567 | 0.1479 | 0.1584 |
| 171.0 | 0.5024 | 0.0853 | 0.1891 | 0.2074 |
Experiment comment: