CLAS Physics Database

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Measurement E102M38

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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 :	1.53 — 1.55 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	0.652	0.071	0.055
-0.4	15	0.6	0.065	0.032
0	15	0.703	0.066	0.03
0.4	15	0.695	0.069	0.06
0.8	15	0.424	0.056	0.03
-0.8	45	0.62	0.067	0.032
-0.4	45	0.512	0.057	0.028
0	45	0.514	0.063	0.009
0.4	45	0.527	0.065	0.026
0.8	45	0.303	0.058	0.024
-0.8	75	0.57	0.059	0.015
-0.4	75	0.497	0.056	0.039
0	75	0.592	0.071	0.036
0.4	75	0.385	0.061	0.04
0.8	75	0.432	0.064	0.008
-0.8	105	0.386	0.049	0.008
-0.4	105	0.478	0.065	0.066
0	105	0.386	0.069	0.075
0.4	105	0.595	0.097	0.147
0.8	105	0.42	0.068	0.035
-0.8	135	0.421	0.049	0.025
-0.4	135	0.532	0.07	0.018
0	135	0.513	0.076	0.122
0.4	135	0.481	0.088	0.121
0.8	135	0.359	0.069	0.011
-0.8	165	0.46	0.051	0.007
-0.4	165	0.408	0.052	0.007
0	165	0.487	0.063	0.031
0.4	165	0.482	0.059	0.035
0.8	165	0.442	0.067	0.014