Parameter (X axis): cos(θ), dimensionless
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Experiment: E-89-039, 2007
Spokespersons: S. Dytman, K. Giovanetti
Measurement comment: Electron beam energy is 2.567 Gev. From fit to angular xs with constraint that fitted xs be positive over all phi.
Publication:
Quantity measured: dσ/dΩT+ε·dσ/dΩL, mcbn/srad
The differential cross section for transverse photons plus the degree of longitudinal polarization of the virtual photon times the differential cross section for longitudinal photons.
Beam: e, polarization: none
Target: p (Z=1, A=1), polarization: none
Final state: η p, polarization: none
| Q2 : | 1 — 1.4 GeV2 |
|---|---|
| W : | 1.53 — 1.55 GeV |
|
Observable quantity measured (Y axis): dσ/dΩT+ε·dσ/dΩL, mcbn/srad
Parameter (X axis): cos(θ), dimensionless |
Click here to get data in text file, delimited with tabs.
Measured data:
|
cos(θ),
dimensionless |
dσ/dΩT+ε·dσ/dΩL,
mcbn/srad |
Negative uncertainty,
mcbn/srad |
Positive uncertainty,
mcbn/srad |
Systematic errors,
mcbn/srad |
|---|---|---|---|---|
| -0.9 | 0.603 | 0.027 | 0.027 | 0.02 |
| -0.7 | 0.571 | 0.03 | 0.03 | 0.024 |
| -0.5 | 0.638 | 0.038 | 0.038 | 0.031 |
| -0.3 | 0.519 | 0.04 | 0.04 | 0.03 |
| -0.1 | 0.583 | 0.044 | 0.044 | 0.045 |
| 0.1 | 0.567 | 0.05 | 0.05 | 0.041 |
| 0.3 | 0.551 | 0.046 | 0.046 | 0.053 |
| 0.5 | 0.548 | 0.049 | 0.049 | 0.06 |
| 0.7 | 0.583 | 0.046 | 0.046 | 0.025 |
| 0.9 | 0.478 | 0.035 | 0.035 | 0.019 |