CLAS Physics Database

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Measurement E102M48

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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 :	1.73 — 1.75 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	0.051	0.028	0.003
-0.4	15	0.025	0.022	0.002
0	15	0.069	0.032	0.006
0.4	15	0.058	0.032	0.005
0.8	15	0.029	0.024	0.005
-0.8	45	0.044	0.027	0.008
-0.4	45	0.054	0.03	0.006
0	45	0.091	0.036	0.007
0.4	45	0.07	0.033	0.019
0.8	45	0.111	0.037	0.013
-0.8	75	0.062	0.038	0.003
-0.4	75	-0.011	0.055	0.002
0	75	-0.014	0.049	0.004
0.4	75	0.142	0.049	0.008
0.8	75	0.164	0.048	0.014
-0.8	105	0.078	0.05	0.012
-0.4	105	0.06	0.069	0
0	105	0.195	0.058	0.019
0.4	105	0.119	0.039	0.008
0.8	105	0.145	0.041	0.008
-0.8	135	-0.032	0.035	0.006
0	135	0.053	0.04	0.005
0.4	135	0.135	0.038	0.004
0.8	135	0.16	0.054	0.018
-0.8	165	0.076	0.034	0.006
0.8	165	-0.012	0.095	0