CLAS Physics Database

Measurement E102M21

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: 0.6 — 1.0 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.
-0.9 15.0 -0.025 0.021 0.002
-0.7 15.0 0.071 0.023 0.008
-0.5 15.0 0.055 0.028 0.003
-0.3 15.0 0.061 0.024 0.003
-0.1 15.0 0.039 0.024 0.003
0.1 15.0 0.054 0.025 0.002
0.3 15.0 0.058 0.032 0.003
0.5 15.0 0.118 0.036 0.006
0.7 15.0 0.067 0.033 0.006
0.9 15.0 0.012 0.028 0.004
-0.9 45.0 0.068 0.032 0.005
-0.7 45.0 0.024 0.026 0.004
-0.5 45.0 0.081 0.034 0.006
-0.3 45.0 0.019 0.047 0.011
-0.1 45.0 0.081 0.033 0.009
0.1 45.0 0.088 0.037 0.014
0.3 45.0 0.134 0.043 0.01
0.5 45.0 0.099 0.054 0.01
0.7 45.0 0.126 0.049 0.008
0.9 45.0 -0.007 0.049 0.008
-0.9 75.0 0.212 0.082 0.032
-0.7 75.0 0.108 0.066 0.01
-0.5 75.0 0.035 0.031 0.007
-0.3 75.0 0.104 0.037 0.005
-0.1 75.0 0.102 0.037 0.016
0.1 75.0 0.146 0.034 0.011
0.3 75.0 0.139 0.04 0.011
0.5 75.0 0.122 0.027 0.011
0.7 75.0 0.106 0.027 0.006
0.9 75.0 0.106 0.037 0.007
-0.9 105.0 0.031 0.04 0.009
-0.7 105.0 -0.019 0.034 0.002
-0.5 105.0 0.038 0.023 0.008
-0.3 105.0 0.06 0.026 0.005
-0.1 105.0 0.044 0.029 0.016
0.1 105.0 0.122 0.037 0.009
0.3 105.0 0.115 0.037 0.008
0.5 105.0 0.131 0.042 0.006
0.7 105.0 0.17 0.048 0.007
0.9 105.0 0.08 0.035 0.009
-0.9 135.0 -0.018 0.056 0.007
-0.7 135.0 -0.021 0.051 0.036
-0.5 135.0 0.001 0.043 0.003
-0.3 135.0 0.098 0.08 0.031
-0.1 135.0 -0.137 0.075 0.023
0.1 135.0 0.07 0.058 0.016
0.3 135.0 0.131 0.047 0.009
0.5 135.0 0.099 0.044 0.012
0.7 135.0 0.091 0.04 0.015
0.9 135.0 0.071 0.07 0.008
-0.9 165.0 0.026 0.033 0.002
-0.1 165.0 0.073 0.114 0.018
0.1 165.0 0.139 0.101 0.022
0.3 165.0 0.109 0.072 0.003
0.5 165.0 0.175 0.072 0.013
0.7 165.0 0.178 0.069 0.017
0.9 165.0 0.116 0.073 0.011