CLAS Physics Database

Measurement E102M1

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: 1.49 — 1.51 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 0.88 0.049 0.086
-0.7 15.0 0.747 0.047 0.093
-0.5 15.0 0.86 0.05 0.061
-0.3 15.0 0.834 0.052 0.11
-0.1 15.0 0.797 0.049 0.068
0.1 15.0 0.84 0.051 0.041
0.3 15.0 0.788 0.049 0.048
0.5 15.0 0.79 0.046 0.046
0.7 15.0 0.783 0.046 0.068
0.9 15.0 0.774 0.044 0.073
-0.9 45.0 0.839 0.05 0.11
-0.7 45.0 0.804 0.053 0.093
-0.5 45.0 0.947 0.068 0.083
-0.3 45.0 0.824 0.062 0.075
-0.1 45.0 0.713 0.058 0.077
0.1 45.0 0.766 0.061 0.067
0.3 45.0 0.932 0.067 0.063
0.5 45.0 0.713 0.05 0.025
0.7 45.0 0.831 0.062 0.057
0.9 45.0 0.958 0.061 0.073
-0.9 75.0 0.837 0.052 0.181
-0.7 75.0 0.966 0.076 0.084
-0.5 75.0 0.628 0.062 0.066
-0.3 75.0 0.795 0.082 0.043
-0.1 75.0 0.862 0.11 0.037
0.1 75.0 1.143 0.141 0.182
0.3 75.0 0.728 0.098 0.033
0.5 75.0 0.851 0.101 0.065
0.7 75.0 0.598 0.066 0.072
0.9 75.0 0.616 0.049 0.006
-0.9 105.0 0.97 0.063 0.137
-0.7 105.0 0.787 0.082 0.139
-0.5 105.0 0.845 0.112 0.059
-0.3 105.0 0.959 0.154 0.071
-0.1 105.0 0.48 0.105 0.278
0.1 105.0 0.96 0.157 0.023
0.3 105.0 0.645 0.111 0.068
0.5 105.0 0.578 0.103 0.033
0.7 105.0 0.384 0.076 0.071
0.9 105.0 0.565 0.061 0.01
-0.9 135.0 1.294 0.084 0.154
-0.7 135.0 0.805 0.082 0.128
-0.5 135.0 0.492 0.075 0.028
-0.3 135.0 0.758 0.156 0.645
-0.1 135.0 0.573 0.134 0.04
0.1 135.0 0.608 0.141 0.082
0.3 135.0 0.475 0.091 0.037
0.5 135.0 0.55 0.103 0.125
0.7 135.0 0.938 0.114 0.135
0.9 135.0 0.77 0.082 0.068
-0.9 165.0 0.971 0.06 0.168
-0.7 165.0 0.684 0.057 0.065
-0.5 165.0 0.777 0.081 0.056
-0.3 165.0 1.226 0.133 0.045
-0.1 165.0 0.967 0.141 0.12
0.1 165.0 0.599 0.123 0.094
0.3 165.0 0.543 0.101 0.094
0.5 165.0 0.94 0.15 0.178
0.7 165.0 0.805 0.103 0.052
0.9 165.0 0.661 0.055 0.007