CLAS Physics Database

Measurement E102M47

Experiment: E-89-039
Year: 2007

Measurement comment:

Electron beam energy is 4.056 GeV. Measurements are average of Phi* and 360-Phi*.
Spokespersons: S. Dytman, K. Giovanetti
Reaction: ep → η p
Polarization: none
Quantity: dσ/dΩ
Q2: 1.3 — 2.1 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 //

Slice: cos(θ) = dimensionless

Measurement data
cos(θ) φ, [degree] dσ/dΩ, [μb/sr] uncertainty syst. uncert.
-0.8 15.0 0.063 0.029 0.002
-0.4 15.0 -0.01 0.022 0.002
0.0 15.0 0.044 0.027 0.002
0.4 15.0 0.054 0.028 0.006
0.8 15.0 0.091 0.032 0.004
-0.8 45.0 0.093 0.032 0.008
-0.4 45.0 -0.008 0.021 0.003
0.0 45.0 0.055 0.034 0.002
0.4 45.0 0.06 0.037 0.005
0.8 45.0 0.141 0.042 0.005
-0.8 75.0 0.067 0.043 0.005
-0.4 75.0 0.148 0.075 0.021
0.0 75.0 0.166 0.106 0.0
0.4 75.0 0.171 0.083 0.015
0.8 75.0 0.029 0.041 0.003
-0.8 105.0 0.203 0.064 0.012
0.0 105.0 0.098 0.046 0.009
0.4 105.0 0.071 0.035 0.002
0.8 105.0 0.152 0.051 0.009
-0.8 135.0 0.077 0.057 0.011
0.0 135.0 0.07 0.049 0.012
0.4 135.0 0.198 0.046 0.006
0.8 135.0 0.121 0.052 0.009
-0.8 165.0 0.055 0.044 0.004
0.8 165.0 0.117 0.083 0.026