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Measurement E102M66

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Experiment: E-89-039, 2007

Spokespersons: S. Dytman, K. Giovanetti

Measurement comment: Electron beam energy is 4.056 GeV. Measurements are average of Phi* and 360-Phi*.

Publication:

Quantity measured: dσ/dΩ, mcbn/srad
Differential cross section.
Beam: e, polarization: none
Target: p (Z=1, A=1), polarization: none
Final state: η p, polarization: none

Q2 : 2.1 — 2.9 GeV2
W : 1.57 — 1.59 GeV

Select data slice:
cos(θ) = dimensionless

Fit φ dependence:

 Observable quantity measured (Y axis): dσ/dΩ, mcbn/srad
Plot measurement data

Parameter (X axis): φ, degree

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

Click here to get calculated fit coefficients in text file, delimited with tabs.

Measured data:

cos(θ),
dimensionless 		φ,
degree 		dσ/dΩ,
mcbn/srad 		Data errors,
mcbn/srad 		Systematic errors,
mcbn/srad
-0.8 15 0.31 0.05 0.012
-0.4 15 0.23 0.039 0.016
0 15 0.241 0.046 0.017
0.4 15 0.233 0.045 0.041
0.8 15 0.11 0.041 0.016
-0.8 45 0.192 0.037 0.015
-0.4 45 0.17 0.035 0.011
0 45 0.133 0.038 0.016
0.4 45 0.188 0.049 0.018
0.8 45 0.167 0.043 0.018
-0.8 75 0.205 0.042 0.006
-0.4 75 0.165 0.044 0.016
0 75 0.132 0.046 0.007
0.4 75 0.074 0.046 0.016
0.8 75 0.084 0.038 0.009
-0.8 105 0.144 0.035 0.007
-0.4 105 0.146 0.052 0.014
0 105 0.116 0.062 0.02
0.4 105 0.181 0.09 0.068
0.8 105 0.141 0.051 0.01
-0.8 135 0.12 0.035 0.006
-0.4 135 0.169 0.058 0.022
0 135 0.328 0.119 0.041
0.4 135 0.143 0.104 0.048
0.8 135 -0.036 0.05 0.005
-0.8 165 0.188 0.033 0.008
-0.4 165 0.171 0.042 0.012
0 165 0.086 0.041 0.004
0.4 165 0.299 0.076 0.045
0.8 165 0.097 0.037 0.007