CLAS Physics Database

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Measurement E102M46

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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 :	1.69 — 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	0.079	0.031	0.006
-0.4	15	0.088	0.028	0.007
0	15	0.066	0.03	0.006
0.4	15	0.07	0.029	0.005
0.8	15	0.092	0.029	0.004
-0.8	45	0.102	0.034	0.004
-0.4	45	0.015	0.029	0.003
0	45	0.103	0.037	0.007
0.4	45	0.098	0.037	0.005
0.8	45	0.075	0.031	0.005
-0.8	75	0.087	0.037	0.01
-0.4	75	0.18	0.093	0.023
0.4	75	0.203	0.075	0.021
0.8	75	0.185	0.054	0.008
-0.8	105	0.184	0.066	0.013
0	105	0.021	0.037	0.002
0.4	105	0.082	0.044	0.005
0.8	105	0.084	0.055	0.009
-0.8	135	0.048	0.049	0.007
0	135	0.105	0.066	0.022
0.4	135	0.134	0.042	0.007
0.8	135	0.186	0.066	0.021
-0.8	165	0.089	0.042	0.002
0.8	165	0.048	0.081	0.004