CLAS Physics Database

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Measurement E102M72

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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 :	2.1 — 2.9 GeV²
W :	1.69 — 1.71 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	0.084	0.031	0.006
-0.4	15	0.038	0.032	0.003
0	15	0.033	0.032	0.002
0.4	15	0.02	0.025	0.002
0.8	15	0.041	0.023	0.005
-0.8	45	0.114	0.043	0.008
-0.4	45	0.024	0.025	0.002
0	45	0.049	0.032	0.003
0.4	45	0.04	0.041	0.003
0.8	45	0.04	0.029	0.006
-0.8	75	0.063	0.027	0.01
-0.4	75	-0.018	0.044	0.005
0	75	0.016	0.039	0.025
0.4	75	0.103	0.072	0.02
0.8	75	0.052	0.037	0.012
-0.8	105	0.009	0.019	0.007
-0.4	105	-0.008	0.074	0.016
0	105	-0.015	0.033	0.003
0.4	105	0.083	0.035	0.019
0.8	105	0.055	0.042	0.009
-0.8	135	0.045	0.046	0.006
0	135	0.036	0.05	0.043
0.4	135	0.064	0.056	0.019
0.8	135	0.011	0.042	0.009
-0.8	165	0.083	0.049	0.024
0.8	165	0.07	0.075	0.009