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Measurement E102M204

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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 : 1.51 — 1.53 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 0.077 0.068 0.069 0.007
-0.7 0.135 0.067 0.07 0.019
-0.5 0.013 0.074 0.076 0.006
-0.3 0.15 0.095 0.103 0.01
-0.1 0.02 0.086 0.091 0
0.1 0.147 0.108 0.121 0.026
0.3 0.284 0.127 0.151 0.009
0.5 -0.088 0.093 0.1 0.011
0.7 0.21 0.099 0.108 0.027
0.9 0.004 0.083 0.084 0.005