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Measurement E102M194

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Experiment: E-89-039, 2007

Spokespersons: S. Dytman, K. Giovanetti

Measurement comment: Electron beam energy is 2.567 Gev. Fitted cross section asymmetry between phi=0 and 180 degrees. From fit to angular xs with constraint that fitted xs be positive over all phi.

Publication:

Quantity measured: AsymLT, dimensionless
Cross section asymmetry between phi*= 0 and 180 degrees.
Beam: e, polarization: none
Target: p (Z=1, A=1), polarization: none
Final state: η p, polarization: none

Q2 : 0.6 — 1 GeV2
W : 1.63 — 1.65 GeV

Observable quantity measured (Y axis): AsymLT, dimensionless
Plot measurement data

Parameter (X axis): cos(θ), dimensionless

Click here to get data in text file, delimited with tabs.

Measured data:

cos(θ),
dimensionless
AsymLT,
dimensionless
Negative uncertainty,
dimensionless
Positive uncertainty,
dimensionless
Systematic errors,
dimensionless
-0.9 0.044 0.148 0.163 0.022
-0.7 1 0.284 0 0
-0.5 -0.19 0.191 0.365 0.022
-0.3 1 0.54 0 0
-0.1 0.346 0.327 0.654 0.024
0.1 -0.069 0.204 0.341 0.006
0.3 1 0.275 0 0
0.5 0.611 0.723 0.389 0.124
0.7 1 0.708 0 0
0.9 0.433 1.433 0.567 0.275