CLAS Physics Database

Measurement E102M43

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: 1.63 — 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 //

Slice: cos(θ) = dimensionless

Measurement data
cos(θ) φ, [degree] dσ/dΩ, [μb/sr] uncertainty syst. uncert.
-0.8 15.0 0.191 0.036 0.008
-0.4 15.0 0.154 0.028 0.008
0.0 15.0 0.088 0.027 0.009
0.4 15.0 0.088 0.027 0.006
0.8 15.0 0.001 0.021 0.001
-0.8 45.0 0.125 0.028 0.011
-0.4 45.0 0.112 0.032 0.016
0.0 45.0 0.08 0.03 0.007
0.4 45.0 0.056 0.029 0.003
0.8 45.0 0.028 0.023 0.009
-0.8 75.0 0.187 0.034 0.018
-0.4 75.0 0.135 0.049 0.018
0.8 75.0 -0.059 0.025 0.011
-0.8 105.0 0.14 0.035 0.019
0.4 105.0 0.034 0.04 0.021
0.8 105.0 0.095 0.061 0.031
-0.8 135.0 0.098 0.038 0.006
0.4 135.0 -0.045 0.055 0.0
0.8 135.0 -0.105 0.054 0.007
-0.8 165.0 0.133 0.032 0.009
-0.4 165.0 0.106 0.048 0.007
0.8 165.0 0.1 0.048 0.012