CLAS Physics Database

Measurement E102M30

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: 1.63 — 1.65 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 0.122 0.033
-0.7 15.0 0.196 0.039
-0.5 15.0 0.24 0.04
-0.3 15.0 0.178 0.042
-0.1 15.0 0.23 0.044
0.1 15.0 0.207 0.045
0.3 15.0 0.089 0.033
0.5 15.0 0.087 0.031
0.7 15.0 0.023 0.035
0.9 15.0 0.009 0.033
-0.9 45.0 0.134 0.035
-0.7 45.0 0.147 0.031
-0.5 45.0 0.218 0.056
-0.3 45.0 0.191 0.05
-0.1 45.0 0.172 0.064
0.1 45.0 0.074 0.039
0.3 45.0 0.088 0.048
0.5 45.0 0.032 0.038
0.7 45.0 0.133 0.071
0.9 45.0 -0.069 0.05
-0.9 75.0 0.13 0.044
-0.7 75.0 0.171 0.069
-0.5 75.0 0.192 0.062
-0.3 75.0 0.272 0.071
-0.1 75.0 0.069 0.046
0.1 75.0 0.152 0.047
0.3 75.0 0.118 0.053
0.5 75.0 0.056 0.042
0.7 75.0 -0.054 0.06
0.9 75.0 0.003 0.042
-0.9 105.0 0.138 0.047
-0.7 105.0 0.016 0.06
-0.5 105.0 0.066 0.085
-0.3 105.0 0.102 0.056
-0.1 105.0 0.054 0.035
0.1 105.0 0.153 0.046
0.3 105.0 0.129 0.041
0.5 105.0 0.185 0.062
0.7 105.0 0.1 0.041
0.9 105.0 0.007 0.064
-0.9 135.0 0.165 0.06
-0.7 135.0 0.055 0.159
-0.5 135.0 0.05 0.091
-0.3 135.0 0.166 0.084
-0.1 135.0 0.063 0.076
0.1 135.0 0.133 0.069
0.3 135.0 0.068 0.054
0.5 135.0 0.039 0.058
0.7 135.0 0.049 0.051
0.9 135.0 -0.022 0.055
-0.9 165.0 0.151 0.05
-0.7 165.0 0.06 0.071
0.9 165.0 0.159 0.112