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Measurement E102M190

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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 : 1.55 — 1.57 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 0.065 0.052 0.052 0.005
-0.7 0.042 0.063 0.065 0.005
-0.5 0.079 0.071 0.077 0.03
-0.3 -0.099 0.077 0.086 0.076
-0.1 0.216 0.12 0.147 0.077
0.1 0.306 0.118 0.143 0.079
0.3 -0.021 0.112 0.145 0.05
0.5 0.214 0.127 0.159 0.022
0.7 0.385 0.129 0.159 0.031
0.9 0.103 0.096 0.104 0.02