Measurement E102M277

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:	0.6 — 1.0 GeV²
W:	1.63 — 1.65 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	-0.236	None	0.028
-0.7	-0.294	None	0.005
-0.5	0.236	None	0.018
-0.3	-0.363	None	0.025
-0.1	-0.195	None	0.019
0.1	-0.013	None	0.019
0.3	-0.349	None	0.022
0.5	-0.476	None	0.026
0.7	-0.635	None	0.003
0.9	-0.554	None	0.081

CLAS Physics Database