CLAS Physics Database

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Measurement E102M45

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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 :	1.67 — 1.69 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	0.069	0.026	0.009
-0.4	15	0.108	0.029	0.007
0	15	0.036	0.024	0.004
0.4	15	0.019	0.023	0.002
0.8	15	0.033	0.027	0.003
-0.8	45	0.061	0.025	0.002
-0.4	45	0.109	0.032	0.006
0	45	0.064	0.031	0.004
0.4	45	0.08	0.032	0.007
0.8	45	0.05	0.03	0.005
-0.8	75	0.072	0.033	0.002
-0.4	75	0.044	0.04	0.009
0.4	75	0.025	0.044	0.017
0.8	75	0.056	0.04	0.002
-0.8	105	0.047	0.044	0.008
0	105	0.105	0.057	0.016
0.4	105	0.026	0.041	0.005
0.8	105	0.177	0.079	0.013
-0.8	135	0.006	0.044	0.001
0	135	-0.001	0.056	0
0.4	135	0.093	0.051	0.017
0.8	135	0.066	0.057	0.022
-0.8	165	0.093	0.041	0.009
-0.4	165	0.147	0.066	0.007
0.8	165	0.035	0.082	0.003