CLAS Physics Database

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Measurement E102M26

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Experiment: E-89-039, 2007

Spokespersons: S. Dytman, K. Giovanetti

Measurement comment: Electron beam energy is 2.567 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 — 1.4 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
-0.9	15	0.588	0.061	0.022
-0.7	15	0.452	0.058	0.029
-0.5	15	0.582	0.064	0.02
-0.3	15	0.628	0.072	0.047
-0.1	15	0.48	0.06	0.014
0.1	15	0.604	0.067	0.027
0.3	15	0.443	0.056	0.015
0.5	15	0.336	0.056	0.016
0.7	15	0.487	0.066	0.027
0.9	15	0.301	0.061	0.016
-0.9	45	0.515	0.067	0.011
-0.7	45	0.519	0.062	0.053
-0.5	45	0.497	0.066	0.038
-0.3	45	0.444	0.073	0.012
-0.1	45	0.497	0.078	0.034
0.1	45	0.392	0.067	0.016
0.3	45	0.469	0.072	0.044
0.5	45	0.348	0.069	0.024
0.7	45	0.457	0.083	0.034
0.9	45	0.4	0.066	0.03
-0.9	75	0.532	0.069	0.023
-0.7	75	0.382	0.064	0.031
-0.5	75	0.673	0.098	0.027
-0.3	75	0.649	0.089	0.031
-0.1	75	0.358	0.079	0.018
0.1	75	0.429	0.1	0.039
0.3	75	0.626	0.099	0.049
0.5	75	0.27	0.08	0.012
0.7	75	0.371	0.084	0.028
0.9	75	0.291	0.076	0.022
-0.9	105	0.589	0.067	0.02
-0.7	105	0.423	0.078	0.022
-0.5	105	0.442	0.109	0.088
-0.3	105	0.393	0.108	0.022
-0.1	105	0.573	0.141	0.062
0.1	105	0.441	0.112	0.022
0.3	105	0.334	0.094	0.021
0.5	105	0.301	0.097	0.055
0.7	105	0.29	0.085	0.045
0.9	105	0.224	0.081	0.018
-0.9	135	0.369	0.055	0.01
-0.7	135	0.443	0.083	0.014
-0.5	135	0.491	0.121	0.029
-0.3	135	0.507	0.184	0.126
-0.1	135	0.428	0.196	0.279
0.1	135	0.404	0.198	0.036
0.3	135	0.216	0.128	0.015
0.5	135	0.247	0.124	0.037
0.7	135	0.296	0.117	0.064
0.9	135	0.303	0.081	0.034
-0.9	165	0.64	0.071	0.009
-0.7	165	0.694	0.095	0.023
-0.5	165	0.52	0.111	0.042
-0.3	165	0.326	0.102	0.028
-0.1	165	0.273	0.125	0.049
0.1	165	0.322	0.16	0.087
0.3	165	0.487	0.153	0.128
0.5	165	0.599	0.173	0.085
0.7	165	0.687	0.149	0.161
0.9	165	0.283	0.079	0.022