CLAS Physics Database

Measurement E102M4

Experiment: E-89-039
Year: 2007

Measurement comment:

Electron beam energy is 1.515 GeV. Measurements are average of Phi* and 360-Phi*.
Spokespersons: S. Dytman, K. Giovanetti
Reaction: ep → η p
Polarization: none
Quantity: dσ/dΩ
Q2: 0.2 — 0.4 GeV2
W: 1.55 — 1.57 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 0.869 0.05 0.027
-0.7 15.0 0.86 0.051 0.009
-0.5 15.0 0.826 0.049 0.01
-0.3 15.0 0.877 0.052 0.128
-0.1 15.0 0.858 0.049 0.06
0.1 15.0 0.902 0.051 0.008
0.3 15.0 0.816 0.045 0.033
0.5 15.0 0.706 0.043 0.029
0.7 15.0 0.674 0.046 0.032
0.9 15.0 0.799 0.054 0.064
-0.9 45.0 0.93 0.062 0.014
-0.7 45.0 0.945 0.071 0.048
-0.5 45.0 0.833 0.076 0.075
-0.3 45.0 0.811 0.069 0.125
-0.1 45.0 0.786 0.069 0.02
0.1 45.0 0.861 0.073 0.045
0.3 45.0 0.914 0.074 0.042
0.5 45.0 1.144 0.099 0.14
0.7 45.0 0.856 0.08 0.044
0.9 45.0 0.634 0.064 0.085
-0.9 75.0 0.641 0.071 0.012
-0.7 75.0 0.528 0.089 0.077
-0.5 75.0 1.04 0.1 0.014
-0.3 75.0 0.927 0.077 0.049
-0.1 75.0 1.061 0.082 0.03
0.1 75.0 1.076 0.069 0.053
0.3 75.0 1.069 0.068 0.031
0.5 75.0 0.884 0.062 0.013
0.7 75.0 0.631 0.057 0.035
0.9 75.0 0.421 0.065 0.056
-0.9 105.0 1.031 0.131 0.091
-0.7 105.0 0.917 0.128 0.274
-0.5 105.0 1.006 0.068 0.042
-0.3 105.0 0.952 0.058 0.045
-0.1 105.0 1.076 0.058 0.026
0.1 105.0 1.027 0.058 0.014
0.3 105.0 1.052 0.06 0.032
0.5 105.0 1.03 0.065 0.039
0.7 105.0 0.86 0.059 0.038
0.9 105.0 0.541 0.056 0.016
-0.9 135.0 1.0 0.136 0.053
-0.7 135.0 1.932 0.311 0.653
-0.5 135.0 1.152 0.101 0.15
-0.3 135.0 1.052 0.101 0.11
-0.1 135.0 0.614 0.09 0.032
0.1 135.0 0.724 0.139 0.142
0.3 135.0 0.69 0.117 0.017
0.5 135.0 0.482 0.111 0.026
0.7 135.0 0.523 0.108 0.209
0.9 135.0 0.605 0.102 0.102
-0.9 165.0 0.854 0.114 0.054
0.9 165.0 0.817 0.203 0.052