CLAS Physics Database

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Measurement E102M200

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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 :	0.6 — 1 GeV²
W :	1.75 — 1.77 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	0.058	1.058	0.942	0.324
-0.7	1	1.325	0	0
-0.5	0.057	0.537	0.943	0.052
-0.3	-1	0	2	0.077
-0.1	0.247	0.563	0.753	0.16
0.1	-0.496	0.153	0.177	0.002
0.3	-0.549	0.229	0.238	0.016
0.5	-0.299	0.214	0.259	0.013
0.7	-0.139	0.23	0.232	0.011
0.9	-0.068	0.725	1.068	0.025