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Measurement E102M288

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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=0/180 and 90/270 degrees. From fit to angular xs with constraint that fitted xs be positive over all phi.

Publication:

Quantity measured: AsymTT, dimensionless
Cross section asymmetry between phi*=0/180 and 90/270 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 : 1.53 — 1.55 GeV

Observable quantity measured (Y axis): AsymTT, 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
AsymTT,
dimensionless
Negative uncertainty,
dimensionless
Positive uncertainty,
dimensionless
Systematic errors,
dimensionless
-0.9 -0.006 0.063 0.064 0.009
-0.7 -0.138 0.071 0.072 0.005
-0.5 -0.043 0.082 0.083 0
-0.3 -0.056 0.106 0.109 0.006
-0.1 0.067 0.099 0.101 0.001
0.1 0.117 0.112 0.112 0.006
0.3 -0.06 0.105 0.107 0
0.5 0.233 0.113 0.116 0.016
0.7 0.096 0.109 0.11 0.011
0.9 -0.009 0.101 0.101 0.009