CLAS Physics Database

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Measurement E102M21

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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 :	1.77 — 1.79 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	-0.025	0.021	0.002
-0.7	15	0.071	0.023	0.008
-0.5	15	0.055	0.028	0.003
-0.3	15	0.061	0.024	0.003
-0.1	15	0.039	0.024	0.003
0.1	15	0.054	0.025	0.002
0.3	15	0.058	0.032	0.003
0.5	15	0.118	0.036	0.006
0.7	15	0.067	0.033	0.006
0.9	15	0.012	0.028	0.004
-0.9	45	0.068	0.032	0.005
-0.7	45	0.024	0.026	0.004
-0.5	45	0.081	0.034	0.006
-0.3	45	0.019	0.047	0.011
-0.1	45	0.081	0.033	0.009
0.1	45	0.088	0.037	0.014
0.3	45	0.134	0.043	0.01
0.5	45	0.099	0.054	0.01
0.7	45	0.126	0.049	0.008
0.9	45	-0.007	0.049	0.008
-0.9	75	0.212	0.082	0.032
-0.7	75	0.108	0.066	0.01
-0.5	75	0.035	0.031	0.007
-0.3	75	0.104	0.037	0.005
-0.1	75	0.102	0.037	0.016
0.1	75	0.146	0.034	0.011
0.3	75	0.139	0.04	0.011
0.5	75	0.122	0.027	0.011
0.7	75	0.106	0.027	0.006
0.9	75	0.106	0.037	0.007
-0.9	105	0.031	0.04	0.009
-0.7	105	-0.019	0.034	0.002
-0.5	105	0.038	0.023	0.008
-0.3	105	0.06	0.026	0.005
-0.1	105	0.044	0.029	0.016
0.1	105	0.122	0.037	0.009
0.3	105	0.115	0.037	0.008
0.5	105	0.131	0.042	0.006
0.7	105	0.17	0.048	0.007
0.9	105	0.08	0.035	0.009
-0.9	135	-0.018	0.056	0.007
-0.7	135	-0.021	0.051	0.036
-0.5	135	0.001	0.043	0.003
-0.3	135	0.098	0.08	0.031
-0.1	135	-0.137	0.075	0.023
0.1	135	0.07	0.058	0.016
0.3	135	0.131	0.047	0.009
0.5	135	0.099	0.044	0.012
0.7	135	0.091	0.04	0.015
0.9	135	0.071	0.07	0.008
-0.9	165	0.026	0.033	0.002
-0.1	165	0.073	0.114	0.018
0.1	165	0.139	0.101	0.022
0.3	165	0.109	0.072	0.003
0.5	165	0.175	0.072	0.013
0.7	165	0.178	0.069	0.017
0.9	165	0.116	0.073	0.011