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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 : | 1.57 — 1.59 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 | 0.386 | 0.024 | 0.024 | 0.018 |
-0.7 | 0.431 | 0.032 | 0.032 | 0.031 |
-0.5 | 0.44 | 0.043 | 0.043 | 0.056 |
-0.3 | 0.346 | 0.043 | 0.043 | 0.028 |
-0.1 | 0.318 | 0.045 | 0.045 | 0.037 |
0.1 | 0.37 | 0.053 | 0.053 | 0.061 |
0.3 | 0.393 | 0.048 | 0.048 | 0.031 |
0.5 | 0.244 | 0.037 | 0.037 | 0.03 |
0.7 | 0.237 | 0.041 | 0.041 | 0.044 |
0.9 | 0.137 | 0.028 | 0.028 | 0.022 |