CLAS Physics Database

Measurement E102M48

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: 1.73 — 1.75 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 0.051 0.028 0.003
-0.4 15.0 0.025 0.022 0.002
0.0 15.0 0.069 0.032 0.006
0.4 15.0 0.058 0.032 0.005
0.8 15.0 0.029 0.024 0.005
-0.8 45.0 0.044 0.027 0.008
-0.4 45.0 0.054 0.03 0.006
0.0 45.0 0.091 0.036 0.007
0.4 45.0 0.07 0.033 0.019
0.8 45.0 0.111 0.037 0.013
-0.8 75.0 0.062 0.038 0.003
-0.4 75.0 -0.011 0.055 0.002
0.0 75.0 -0.014 0.049 0.004
0.4 75.0 0.142 0.049 0.008
0.8 75.0 0.164 0.048 0.014
-0.8 105.0 0.078 0.05 0.012
-0.4 105.0 0.06 0.069 0.0
0.0 105.0 0.195 0.058 0.019
0.4 105.0 0.119 0.039 0.008
0.8 105.0 0.145 0.041 0.008
-0.8 135.0 -0.032 0.035 0.006
0.0 135.0 0.053 0.04 0.005
0.4 135.0 0.135 0.038 0.004
0.8 135.0 0.16 0.054 0.018
-0.8 165.0 0.076 0.034 0.006
0.8 165.0 -0.012 0.095 0.0