CLAS Physics Database

Measurement E102M44

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: 1.65 — 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 //

Slice: cos(θ) = dimensionless

Measurement data
cos(θ) φ, [degree] dσ/dΩ, [μb/sr] uncertainty syst. uncert.
-0.8 15.0 0.135 0.031 0.01
-0.4 15.0 0.048 0.022 0.004
0.0 15.0 0.062 0.027 0.004
0.4 15.0 0.034 0.021 0.001
0.8 15.0 0.008 0.02 0.001
-0.8 45.0 0.113 0.031 0.004
-0.4 45.0 0.091 0.031 0.006
0.0 45.0 0.073 0.028 0.004
0.4 45.0 0.007 0.023 0.005
0.8 45.0 0.013 0.027 0.001
-0.8 75.0 0.14 0.035 0.003
-0.4 75.0 0.097 0.044 0.002
0.4 75.0 0.014 0.058 0.019
0.8 75.0 -0.011 0.055 0.011
-0.8 105.0 0.088 0.032 0.011
0.0 105.0 0.182 0.126 0.0
0.4 105.0 -0.003 0.048 0.01
0.8 105.0 -0.046 0.042 0.004
-0.8 135.0 0.136 0.042 0.004
0.4 135.0 0.199 0.078 0.04
0.8 135.0 0.15 0.071 0.024
-0.8 165.0 0.204 0.041 0.022
-0.4 165.0 0.153 0.061 0.008
0.8 165.0 0.034 0.051 0.006