CLAS Physics Database

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Measurement E102M65

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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 :	1.55 — 1.57 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	0.299	0.045	0.036
-0.4	15	0.346	0.048	0.019
0	15	0.29	0.055	0.022
0.4	15	0.252	0.048	0.017
0.8	15	0.223	0.05	0.008
-0.8	45	0.239	0.043	0.011
-0.4	45	0.307	0.051	0.006
0	45	0.316	0.055	0.007
0.4	45	0.145	0.047	0.011
0.8	45	0.168	0.044	0.007
-0.8	75	0.255	0.046	0.012
-0.4	75	0.182	0.046	0.005
0	75	0.195	0.048	0.015
0.4	75	0.187	0.06	0.017
0.8	75	0.136	0.047	0.015
-0.8	105	0.273	0.051	0.023
-0.4	105	0.279	0.057	0.008
0	105	0.181	0.065	0.026
0.4	105	0.272	0.081	0.058
0.8	105	0.168	0.054	0.015
-0.8	135	0.184	0.038	0.018
-0.4	135	0.097	0.049	0.018
0	135	0.105	0.055	0.028
0.4	135	0.326	0.097	0.048
0.8	135	0.111	0.048	0.013
-0.8	165	0.181	0.035	0.007
-0.4	165	0.339	0.052	0.012
0	165	0.212	0.05	0.021
0.4	165	0.262	0.058	0.032
0.8	165	0.147	0.044	0.007