CLAS Physics Database

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Measurement E102M39

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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:

H. Denizli, J. Mueller, S. Dytman, M.L. Leber, R.D. Levine, J. Miles, K.Y. Kim, and CLAS Collaboration Q² dependence of the S11(1535) Photocoupling and Evidence for a P-wave resonance in η electroproduction //

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 :	1.3 — 2.1 GeV²
W :	1.55 — 1.57 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	0.567	0.062	0.022
-0.4	15	0.542	0.06	0.046
0	15	0.605	0.061	0.046
0.4	15	0.381	0.054	0.023
0.8	15	0.246	0.048	0.022
-0.8	45	0.597	0.064	0.036
-0.4	45	0.535	0.057	0.02
0	45	0.481	0.057	0.054
0.4	45	0.375	0.054	0.036
0.8	45	0.374	0.054	0.02
-0.8	75	0.501	0.055	0.031
-0.4	75	0.462	0.059	0.025
0	75	0.587	0.08	0.118
0.4	75	0.406	0.072	0.07
0.8	75	0.371	0.059	0.046
-0.8	105	0.472	0.051	0.039
-0.4	105	0.541	0.077	0.076
0	105	0.437	0.106	0.072
0.4	105	0.3	0.11	0.078
0.8	105	0.272	0.067	0.021
-0.8	135	0.53	0.057	0.008
-0.4	135	0.423	0.064	0.028
0	135	0.549	0.114	0.14
0.4	135	0.494	0.124	0.175
0.8	135	0.304	0.067	0.045
-0.8	165	0.313	0.043	0.008
-0.4	165	0.374	0.05	0.007
0	165	0.363	0.065	0.029
0.4	165	0.403	0.067	0.047
0.8	165	0.385	0.056	0.038