CLAS Physics Database

Measurement E102M83

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: 1.91 — 1.93 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 -0.004 0.009
-0.4 15.0 -0.003 0.009
0.0 15.0 0.042 0.022
0.4 15.0 0.059 0.033
0.8 15.0 0.019 0.024
-0.4 45.0 -0.003 0.013
0.0 45.0 0.028 0.027
0.4 45.0 0.033 0.028
0.8 45.0 0.036 0.016
-0.8 75.0 0.069 0.059
-0.4 75.0 0.039 0.035
0.0 75.0 0.011 0.027
0.4 75.0 0.061 0.038
0.8 75.0 0.015 0.015
-0.4 105.0 -0.009 0.025
0.0 105.0 0.006 0.012
0.4 105.0 0.022 0.02
0.8 105.0 0.016 0.012
-0.4 135.0 0.015 0.033
0.0 135.0 0.207 0.442
0.4 135.0 0.011 0.017
0.8 135.0 0.016 0.036
0.4 165.0 -0.004 0.022