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 4.056 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 : | 2.1 — 2.9 GeV2 |
|---|---|
| W : | 1.55 — 1.57 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 |
|---|---|---|---|---|
| -0.8 | 0.236 | 0.018 | 0.018 | 0.018 |
| -0.4 | 0.252 | 0.02 | 0.02 | 0.012 |
| 0 | 0.216 | 0.022 | 0.022 | 0.019 |
| 0.4 | 0.226 | 0.026 | 0.026 | 0.028 |
| 0.8 | 0.157 | 0.019 | 0.019 | 0.011 |