Measurement E102M288

Experiment:	E-89-039
Year:	2007	Measurement comment: Electron beam energy is 2.567 Gev. Fitted cross section asymmetry between phi=0/180 and 90/270 degrees. From fit to angular xs with constraint that fitted xs be positive over all phi.
Spokespersons:	S. Dytman, K. Giovanetti
Reaction:	ep → η p
Polarization:	none
Quantity:	Asym_TT
Q²:	1.0 — 1.4 GeV²
W:	1.53 — 1.55 GeV
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 //

Measurement data
cos(θ)	Asym_TT	uncertainty	syst. uncert.
-0.9	-0.006	None	0.009
-0.7	-0.138	None	0.005
-0.5	-0.043	None	0.0
-0.3	-0.056	None	0.006
-0.1	0.067	None	0.001
0.1	0.117	None	0.006
0.3	-0.06	None	0.0
0.5	0.233	None	0.016
0.7	0.096	None	0.011
0.9	-0.009	None	0.009

CLAS Physics Database