CLAS Physics Database

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Measurement E102M15

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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 :	0.6 — 1 GeV²
W :	1.65 — 1.67 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	0.163	0.033	0.01
-0.7	15	0.153	0.032	0.006
-0.5	15	0.156	0.032	0.009
-0.3	15	0.154	0.037	0.011
-0.1	15	0.123	0.029	0.006
0.1	15	0.095	0.028	0.006
0.3	15	0.091	0.028	0.003
0.5	15	0.039	0.023	0.003
0.7	15	0.078	0.029	0.009
0.9	15	0.004	0.027	0.003
-0.9	45	0.185	0.044	0.009
-0.7	45	0.083	0.036	0.008
-0.5	45	0.211	0.052	0.017
-0.3	45	0.21	0.049	0.012
-0.1	45	0.087	0.043	0.004
0.1	45	0.023	0.039	0.002
0.3	45	0.119	0.047	0.012
0.5	45	0.039	0.054	0.005
0.7	45	0.05	0.039	0.004
0.9	45	-0.019	0.034	0.011
-0.9	75	0.124	0.041	0.012
-0.7	75	0.193	0.064	0.02
-0.5	75	0.075	0.054	0.031
-0.3	75	0.15	0.056	0.014
-0.1	75	0.016	0.036	0.003
0.1	75	0.066	0.043	0.009
0.3	75	0	0.036	0
0.5	75	0.076	0.035	0.003
0.7	75	0.06	0.036	0.003
0.9	75	0.136	0.061	0.037
-0.9	105	0.134	0.052	0.009
-0.7	105	0.162	0.088	0
-0.5	105	0.17	0.057	0.013
-0.3	105	0.145	0.04	0.01
-0.1	105	0.113	0.044	0.004
0.1	105	0.138	0.034	0.005
0.3	105	0.105	0.037	0.007
0.5	105	0.164	0.04	0.012
0.7	105	0.129	0.038	0.008
0.9	105	0.003	0.045	0.014
-0.9	135	0.248	0.061	0.011
-0.5	135	0.089	0.069	0.01
-0.3	135	0.098	0.055	0.016
-0.1	135	0.079	0.033	0.007
0.1	135	0.09	0.05	0.006
0.3	135	0.139	0.067	0.023
0.5	135	-0.11	0.071	0.014
0.7	135	0.006	0.058	0.01
0.9	135	0	0.052	0.011
-0.9	165	0.151	0.048	0.004
0.9	165	-0.063	0.097	0.007