Measurement E102M281

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:	1.71 — 1.73 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	-0.669	None	0.029
-0.7	-0.231	None	0.002
-0.5	0.528	None	0.025
-0.3	-0.073	None	0.018
-0.1	-0.013	None	0.005
0.1	-0.211	None	0.067
0.3	-0.223	None	0.041
0.5	0.155	None	0.018
0.7	0.078	None	0.027
0.9	-0.486	None	0.008

CLAS Physics Database