CLAS Physics Database

Measurement E102M22

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: 1.79 — 1.81 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
-0.9 15.0 0.039 0.021
-0.7 15.0 0.043 0.022
-0.5 15.0 0.009 0.02
-0.3 15.0 0.03 0.022
-0.1 15.0 0.002 0.028
0.1 15.0 0.074 0.029
0.3 15.0 0.038 0.04
0.5 15.0 0.137 0.042
0.7 15.0 0.054 0.036
0.9 15.0 0.002 0.032
-0.9 45.0 0.016 0.031
-0.7 45.0 0.027 0.031
-0.5 45.0 0.048 0.029
-0.3 45.0 0.026 0.041
-0.1 45.0 0.043 0.033
0.1 45.0 0.038 0.043
0.3 45.0 0.027 0.04
0.5 45.0 0.037 0.044
0.7 45.0 0.078 0.052
0.9 45.0 0.079 0.051
-0.9 75.0 0.09 0.042
-0.7 75.0 -0.002 0.032
-0.5 75.0 0.073 0.038
-0.3 75.0 0.121 0.039
-0.1 75.0 0.106 0.032
0.1 75.0 0.13 0.035
0.3 75.0 0.248 0.05
0.5 75.0 0.155 0.037
0.7 75.0 0.187 0.036
0.9 75.0 0.04 0.028
-0.9 105.0 0.01 0.039
-0.7 105.0 0.008 0.028
-0.5 105.0 0.053 0.025
-0.3 105.0 0.047 0.028
-0.1 105.0 0.067 0.032
0.1 105.0 0.077 0.034
0.3 105.0 0.073 0.03
0.5 105.0 0.096 0.045
0.7 105.0 0.162 0.045
0.9 105.0 0.1 0.035
-0.9 135.0 0.011 0.051
-0.7 135.0 -0.006 0.058
-0.5 135.0 -0.02 0.044
-0.3 135.0 0.116 0.108
-0.1 135.0 0.16 0.058
0.1 135.0 0.08 0.048
0.3 135.0 0.067 0.036
0.5 135.0 0.126 0.04
0.7 135.0 0.171 0.072
0.9 135.0 0.124 0.048
-0.9 165.0 0.056 0.057
-0.1 165.0 0.015 0.105
0.1 165.0 0.046 0.061
0.3 165.0 0.038 0.064
0.5 165.0 0.176 0.072
0.7 165.0 0.071 0.053
0.9 165.0 0.05 0.066