CLAS Physics Database

Measurement E102M33

Experiment: E-89-039
Year: 2007

Measurement comment:

Electron beam energy is 2.567 GeV. Measurements are average of Phi* and 360-Phi*.
Spokespersons: S. Dytman, K. Giovanetti
Reaction: ep → η p
Polarization: none
Quantity: dσ/dΩ
Q2: 1.0 — 1.4 GeV2
W: 1.69 — 1.71 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.
-0.9 15.0 0.006 0.038 0.003
-0.7 15.0 0.067 0.038 0.011
-0.5 15.0 0.061 0.032 0.005
-0.3 15.0 0.045 0.043 0.01
-0.1 15.0 0.0 0.048 0.002
0.1 15.0 0.069 0.051 0.008
0.3 15.0 0.119 0.049 0.03
0.5 15.0 0.098 0.05 0.008
0.7 15.0 0.192 0.066 0.013
0.9 15.0 0.152 0.064 0.018
-0.9 45.0 0.104 0.046 0.007
-0.7 45.0 0.03 0.052 0.019
-0.5 45.0 0.084 0.043 0.015
-0.3 45.0 0.1 0.054 0.009
-0.1 45.0 0.038 0.04 0.003
0.1 45.0 0.1 0.061 0.016
0.3 45.0 0.149 0.059 0.013
0.5 45.0 0.071 0.054 0.023
0.7 45.0 -0.001 0.065 0.008
0.9 45.0 0.102 0.063 0.012
-0.9 75.0 -0.036 0.049 0.015
-0.7 75.0 -0.053 0.033 0.031
-0.5 75.0 0.068 0.043 0.003
-0.3 75.0 -0.003 0.059 0.0
-0.1 75.0 0.066 0.051 0.007
0.1 75.0 0.114 0.045 0.01
0.3 75.0 0.249 0.078 0.01
0.5 75.0 0.117 0.048 0.008
0.7 75.0 0.169 0.06 0.011
0.9 75.0 -0.027 0.064 0.025
-0.9 105.0 0.07 0.057 0.005
-0.7 105.0 0.09 0.078 0.027
-0.5 105.0 0.089 0.05 0.016
-0.3 105.0 0.058 0.041 0.006
-0.1 105.0 0.112 0.052 0.024
0.1 105.0 0.086 0.042 0.005
0.3 105.0 0.099 0.045 0.007
0.5 105.0 0.129 0.041 0.007
0.7 105.0 0.112 0.044 0.018
0.9 105.0 0.166 0.075 0.014
-0.9 135.0 0.062 0.062 0.008
-0.5 135.0 -0.017 0.049 0.005
-0.3 135.0 0.031 0.061 0.013
-0.1 135.0 0.035 0.054 0.006
0.1 135.0 -0.021 0.054 0.002
0.3 135.0 0.13 0.132 0.035
0.5 135.0 0.123 0.094 0.054
0.7 135.0 0.226 0.155 0.135
0.9 135.0 0.22 0.081 0.02
-0.9 165.0 0.038 0.056 0.003