CLAS Physics Database

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Measurement E102M62

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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 :	1.49 — 1.51 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	0.256	0.05	0.041
-0.4	15	0.306	0.052	0.021
0	15	0.264	0.048	0.028
0.4	15	0.285	0.055	0.018
0.8	15	0.192	0.047	0.026
-0.8	45	0.287	0.049	0.038
-0.4	45	0.247	0.049	0.029
0	45	0.144	0.048	0.018
0.4	45	0.174	0.043	0.021
0.8	45	0.133	0.051	0.016
-0.8	75	0.219	0.043	0.025
-0.4	75	0.172	0.038	0.023
0	75	0.165	0.053	0.021
0.4	75	0.145	0.037	0.014
0.8	75	0.174	0.048	0.021
-0.8	105	0.218	0.039	0.02
-0.4	105	0.155	0.036	0.012
0	105	0.153	0.047	0.011
0.4	105	0.116	0.039	0.007
0.8	105	0.14	0.042	0.018
-0.8	135	0.129	0.034	0.019
-0.4	135	0.198	0.044	0.028
0	135	0.108	0.034	0.011
0.4	135	0.148	0.044	0.016
0.8	135	0.077	0.036	0.01
-0.8	165	0.198	0.039	0.031
-0.4	165	0.182	0.039	0.025
0	165	0.134	0.037	0.026
0.4	165	0.166	0.036	0.027
0.8	165	0.097	0.033	0.014