CLAS Physics Database

Measurement E102M73

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: 1.71 — 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 0.035 0.025 0.004
-0.4 15.0 0.058 0.029 0.006
0.0 15.0 0.008 0.027 0.002
0.4 15.0 0.015 0.026 0.006
0.8 15.0 0.042 0.021 0.007
-0.8 45.0 0.111 0.044 0.006
-0.4 45.0 0.051 0.032 0.01
0.0 45.0 0.1 0.046 0.003
0.4 45.0 0.087 0.046 0.011
0.8 45.0 0.076 0.041 0.01
-0.8 75.0 0.013 0.026 0.005
0.0 75.0 -0.012 0.03 0.016
0.4 75.0 0.019 0.037 0.011
0.8 75.0 0.058 0.047 0.024
-0.8 105.0 0.084 0.049 0.022
0.0 105.0 0.027 0.031 0.004
0.4 105.0 0.045 0.04 0.008
0.8 105.0 0.054 0.053 0.009
-0.8 135.0 0.039 0.041 0.014
0.0 135.0 0.076 0.057 0.017
0.4 135.0 0.039 0.023 0.008
0.8 135.0 0.147 0.077 0.015
-0.8 165.0 0.043 0.03 0.004