CLAS Physics Database

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Measurement E102M211

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Experiment: E-89-039, 2007

Spokespersons: S. Dytman, K. Giovanetti

Measurement comment: Electron beam energy is 2.567 Gev. Fitted cross section asymmetry between phi=0 and 180 degrees. From fit to angular xs with constraint that fitted xs be positive over all 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: Asym_LT, dimensionless
Cross section asymmetry between phi*= 0 and 180 degrees.
Beam: e, polarization: none
Target: p (Z=1, A=1), polarization: none
Final state: η p, polarization: none

Q² :	1 — 1.4 GeV²
W :	1.65 — 1.67 GeV

Observable quantity measured (Y axis): Asym_LT, dimensionless
Plot measurement data

Parameter (X axis): cos(θ), dimensionless

Click here to get data in text file, delimited with tabs.

Measured data:

cos(θ), dimensionless	Asym_LT, dimensionless	Negative uncertainty, dimensionless	Positive uncertainty, dimensionless	Systematic errors, dimensionless
-0.9	-0.107	0.249	0.291	0.005
-0.7	1	0.749	0	0.245
-0.5	0.209	0.421	0.778	0.012
-0.3	1	0.379	0	0
-0.1	0.906	0.886	0.094	0.094
0.1	-0.139	0.285	0.324	0.01
0.3	1	2	0	0
0.5	-0.719	0.281	0.35	0.075
0.7	-0.737	0.263	1.737	0.226
0.9	1	2	0	0