CLAS Physics Database

Measurement E102M31

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: 1.65 — 1.67 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 0.074 0.035 0.006
-0.7 15.0 0.169 0.042 0.009
-0.5 15.0 0.19 0.044 0.011
-0.3 15.0 0.113 0.036 0.009
-0.1 15.0 0.104 0.032 0.015
0.1 15.0 0.121 0.048 0.007
0.3 15.0 0.026 0.028 0.011
0.5 15.0 0.076 0.048 0.003
0.7 15.0 -0.057 0.036 0.005
0.9 15.0 0.019 0.042 0.008
-0.9 45.0 0.121 0.037 0.014
-0.7 45.0 0.202 0.056 0.014
-0.5 45.0 0.126 0.049 0.022
-0.3 45.0 0.08 0.037 0.011
-0.1 45.0 0.088 0.044 0.004
0.1 45.0 0.128 0.048 0.016
0.3 45.0 0.053 0.043 0.018
0.5 45.0 0.038 0.048 0.031
0.7 45.0 0.091 0.058 0.017
0.9 45.0 0.045 0.051 0.032
-0.9 75.0 0.094 0.035 0.015
-0.7 75.0 0.087 0.051 0.007
-0.5 75.0 0.063 0.04 0.006
-0.3 75.0 0.133 0.061 0.014
-0.1 75.0 0.168 0.052 0.039
0.1 75.0 0.011 0.046 0.009
0.3 75.0 0.156 0.059 0.007
0.5 75.0 -0.02 0.036 0.004
0.7 75.0 -0.012 0.049 0.019
0.9 75.0 0.125 0.068 0.02
-0.9 105.0 0.078 0.042 0.017
-0.7 105.0 -0.051 0.071 0.035
-0.5 105.0 0.031 0.047 0.003
-0.3 105.0 0.072 0.054 0.013
-0.1 105.0 0.068 0.051 0.008
0.1 105.0 0.088 0.041 0.007
0.3 105.0 0.094 0.036 0.007
0.5 105.0 0.11 0.041 0.012
0.7 105.0 0.105 0.052 0.007
0.9 105.0 0.031 0.055 0.017
-0.9 135.0 0.204 0.075 0.007
-0.5 135.0 0.102 0.1 0.02
-0.3 135.0 -0.048 0.047 0.011
-0.1 135.0 0.061 0.054 0.004
0.1 135.0 0.107 0.054 0.019
0.3 135.0 -0.005 0.069 0.015
0.5 135.0 0.112 0.058 0.028
0.7 135.0 -0.011 0.048 0.005
0.9 135.0 -0.042 0.049 0.008
-0.9 165.0 0.094 0.05 0.012
-0.7 165.0 0.088 0.15 0.032
0.9 165.0 0.285 0.264 0.062