CLAS Physics Database

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Measurement E102M36

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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 :	1.49 — 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	0.505	0.072	0.086
-0.4	15	0.408	0.063	0.048
0	15	0.423	0.06	0.052
0.4	15	0.387	0.058	0.056
0.8	15	0.364	0.055	0.055
-0.8	45	0.397	0.06	0.078
-0.4	45	0.445	0.063	0.068
0	45	0.391	0.059	0.046
0.4	45	0.333	0.059	0.051
0.8	45	0.334	0.058	0.042
-0.8	75	0.435	0.056	0.059
-0.4	75	0.386	0.055	0.043
0	75	0.366	0.052	0.039
0.4	75	0.352	0.052	0.042
0.8	75	0.288	0.054	0.04
-0.8	105	0.514	0.064	0.078
-0.4	105	0.406	0.052	0.07
0	105	0.356	0.049	0.026
0.4	105	0.353	0.051	0.038
0.8	105	0.265	0.051	0.032
-0.8	135	0.356	0.052	0.068
-0.4	135	0.369	0.047	0.057
0	135	0.311	0.051	0.037
0.4	135	0.395	0.057	0.053
0.8	135	0.315	0.054	0.044
-0.8	165	0.388	0.045	0.061
-0.4	165	0.287	0.047	0.056
0	165	0.295	0.053	0.055
0.4	165	0.307	0.051	0.052
0.8	165	0.298	0.053	0.044