CLAS Physics Database

Measurement E102M76

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: 2.1 — 2.9 GeV2
W: 1.77 — 1.79 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
-0.8 15.0 0.023 0.018
-0.4 15.0 0.028 0.019
0.0 15.0 0.057 0.023
0.4 15.0 0.005 0.023
0.8 15.0 0.013 0.018
-0.8 45.0 0.004 0.019
-0.4 45.0 0.009 0.021
0.0 45.0 -0.02 0.028
0.4 45.0 0.062 0.029
0.8 45.0 0.012 0.022
-0.8 75.0 0.0 0.021
-0.4 75.0 0.022 0.033
0.0 75.0 0.048 0.024
0.4 75.0 0.049 0.028
0.8 75.0 0.057 0.032
-0.8 105.0 0.013 0.036
-0.4 105.0 -0.002 0.022
0.0 105.0 0.0 0.032
0.4 105.0 0.036 0.018
0.8 105.0 0.069 0.034
-0.8 135.0 0.013 0.036
-0.4 135.0 -0.038 0.066
0.0 135.0 0.036 0.046
0.4 135.0 0.015 0.03
0.8 135.0 0.023 0.039
-0.8 165.0 -0.017 0.007