Measurement E102M278

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:	1.65 — 1.67 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	0.099	None	0.016
-0.7	0.326	None	0.056
-0.5	0.001	None	0.086
-0.3	-0.216	None	0.026
-0.1	0.482	None	0.004
0.1	0.118	None	0.01
0.3	0.565	None	0.005
0.5	-0.764	None	0.0
0.7	-0.259	None	0.089
0.9	-1.0	None	0.0

CLAS Physics Database