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Measurement E102M214

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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 : 1 — 1.4 GeV2
W : 1.69 — 1.73 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 1 0.813 0 0
-0.7 1 2 0 0
-0.5 1 1.288 0 0
-0.3 -0.1 0.436 1.1 0.016
-0.1 1 0.73 0 0
0.1 -1 0 2 0.145
0.3 0.2 0.425 0.8 0.2
0.5 -0.538 0.462 1.538 0.035
0.7 1 0.441 0 0
0.9 0.174 0.324 0.551 0.036