CLAS Physics Database

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Measurement E102M25

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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 :	1.53 — 1.55 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

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Measured data:

cos(θ), dimensionless	φ, degree	dσ/dΩ, mcbn/srad	Data errors, mcbn/srad	Systematic errors, mcbn/srad
-0.9	15	0.602	0.06	0.016
-0.7	15	0.482	0.06	0.025
-0.5	15	0.7	0.073	0.022
-0.3	15	0.673	0.076	0.015
-0.1	15	0.599	0.069	0.015
0.1	15	0.573	0.063	0.015
0.3	15	0.549	0.06	0.016
0.5	15	0.511	0.068	0.017
0.7	15	0.532	0.073	0.012
0.9	15	0.464	0.068	0.021
-0.9	45	0.738	0.075	0.018
-0.7	45	0.746	0.081	0.011
-0.5	45	0.621	0.076	0.032
-0.3	45	0.415	0.074	0.007
-0.1	45	0.66	0.086	0.023
0.1	45	0.645	0.078	0.037
0.3	45	0.644	0.082	0.017
0.5	45	0.464	0.084	0.021
0.7	45	0.646	0.092	0.017
0.9	45	0.51	0.081	0.02
-0.9	75	0.617	0.066	0.02
-0.7	75	0.647	0.078	0.021
-0.5	75	0.665	0.096	0.016
-0.3	75	0.839	0.106	0.019
-0.1	75	0.542	0.106	0.018
0.1	75	0.531	0.113	0.039
0.3	75	0.566	0.114	0.015
0.5	75	0.432	0.1	0.059
0.7	75	0.664	0.113	0.02
0.9	75	0.423	0.078	0.017
-0.9	105	0.551	0.073	0.03
-0.7	105	0.586	0.078	0.037
-0.5	105	0.735	0.11	0.027
-0.3	105	0.385	0.117	0.039
-0.1	105	0.456	0.114	0.037
0.1	105	0.399	0.112	0.028
0.3	105	0.525	0.118	0.106
0.5	105	0.39	0.128	0.06
0.7	105	0.376	0.113	0.018
0.9	105	0.55	0.097	0.034
-0.9	135	0.565	0.061	0.025
-0.7	135	0.492	0.079	0.034
-0.5	135	0.567	0.112	0.076
-0.3	135	0.499	0.118	0.093
-0.1	135	0.707	0.144	0.165
0.1	135	0.578	0.183	0.054
0.3	135	0.555	0.176	0.081
0.5	135	0.693	0.159	0.063
0.7	135	0.508	0.128	0.022
0.9	135	0.475	0.09	0.018
-0.9	165	0.569	0.067	0.013
-0.7	165	0.508	0.069	0.01
-0.5	165	0.56	0.09	0.02
-0.3	165	0.391	0.094	0.025
-0.1	165	0.58	0.118	0.041
0.1	165	0.715	0.161	0.076
0.3	165	0.482	0.121	0.077
0.5	165	0.803	0.153	0.133
0.7	165	0.862	0.149	0.07
0.9	165	0.47	0.096	0.009