CLAS Physics Database

Measurement E102M50

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: 1.77 — 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 syst. uncert.
-0.8 15.0 0.008 0.021 0.001
-0.4 15.0 0.004 0.015 0.001
0.0 15.0 0.005 0.018 0.0
0.4 15.0 0.049 0.027 0.004
0.8 15.0 0.079 0.029 0.002
-0.8 45.0 -0.007 0.015 0.001
-0.4 45.0 0.049 0.025 0.003
0.0 45.0 0.063 0.038 0.01
0.4 45.0 0.006 0.042 0.002
0.8 45.0 0.104 0.038 0.006
-0.8 75.0 0.021 0.021 0.001
0.0 75.0 0.051 0.053 0.007
0.4 75.0 0.029 0.034 0.001
0.8 75.0 0.079 0.031 0.004
-0.8 105.0 0.006 0.03 0.006
-0.4 105.0 0.011 0.047 0.003
0.0 105.0 0.035 0.031 0.001
0.4 105.0 0.057 0.024 0.001
0.8 105.0 0.047 0.033 0.002
-0.8 135.0 0.077 0.05 0.004
-0.4 135.0 0.064 0.066 0.002
0.0 135.0 0.047 0.028 0.002
0.4 135.0 0.079 0.04 0.002
0.8 135.0 0.133 0.039 0.012
-0.8 165.0 0.065 0.031 0.004