Measurement E102M293

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:	1.63 — 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	0.007	None	0.008
-0.7	0.246	None	0.002
-0.5	-0.066	None	0.065
-0.3	-0.182	None	0.035
-0.1	0.522	None	0.063
0.1	0.193	None	0.003
0.3	-0.344	None	0.031
0.5	0.029	None	0.023
0.7	-0.044	None	0.027
0.9	0.996	None	0.298

CLAS Physics Database