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
-0.8 15.0 0.035 0.025
-0.4 15.0 0.058 0.029
0.0 15.0 0.008 0.027
0.4 15.0 0.015 0.026
0.8 15.0 0.042 0.021
-0.8 45.0 0.111 0.044
-0.4 45.0 0.051 0.032
0.0 45.0 0.1 0.046
0.4 45.0 0.087 0.046
0.8 45.0 0.076 0.041
-0.8 75.0 0.013 0.026
0.0 75.0 -0.012 0.03
0.4 75.0 0.019 0.037
0.8 75.0 0.058 0.047
-0.8 105.0 0.084 0.049
0.0 105.0 0.027 0.031
0.4 105.0 0.045 0.04
0.8 105.0 0.054 0.053
-0.8 135.0 0.039 0.041
0.0 135.0 0.076 0.057
0.4 135.0 0.039 0.023
0.8 135.0 0.147 0.077
-0.8 165.0 0.043 0.03