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 : | 1.3 — 2.1 GeV2 |
|---|---|
| W : | 1.85 — 1.87 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 | 0.013 | 0.009 | 0.011 | 0.001 |
| -0.4 | 0.031 | 0.016 | 0.016 | 0.002 |
| 0 | 0.042 | 0.015 | 0.015 | 0.003 |
| 0.4 | 0.087 | 0.025 | 0.025 | 0.005 |
| 0.8 | 0.111 | 0.027 | 0.027 | 0.008 |