CLAS Physics Database

Measurement E102M13

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: 1.61 — 1.63 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 0.276 0.04
-0.7 15.0 0.355 0.044
-0.5 15.0 0.362 0.046
-0.3 15.0 0.33 0.043
-0.1 15.0 0.335 0.039
0.1 15.0 0.215 0.033
0.3 15.0 0.267 0.044
0.5 15.0 0.217 0.039
0.7 15.0 0.088 0.03
0.9 15.0 0.003 0.03
-0.9 45.0 0.283 0.041
-0.7 45.0 0.345 0.05
-0.5 45.0 0.42 0.056
-0.3 45.0 0.409 0.061
-0.1 45.0 0.21 0.047
0.1 45.0 0.268 0.047
0.3 45.0 0.329 0.064
0.5 45.0 0.221 0.065
0.7 45.0 0.145 0.049
0.9 45.0 0.055 0.039
-0.9 75.0 0.356 0.05
-0.7 75.0 0.316 0.067
-0.5 75.0 0.346 0.089
-0.3 75.0 0.29 0.086
-0.1 75.0 0.336 0.072
0.1 75.0 0.274 0.069
0.3 75.0 0.181 0.056
0.5 75.0 0.145 0.064
0.7 75.0 0.242 0.074
0.9 75.0 -0.007 0.052
-0.9 105.0 0.243 0.047
-0.7 105.0 0.213 0.115
-0.5 105.0 0.388 0.153
-0.3 105.0 0.285 0.061
-0.1 105.0 0.352 0.058
0.1 105.0 0.257 0.049
0.3 105.0 0.289 0.053
0.5 105.0 0.165 0.044
0.7 105.0 0.028 0.038
0.9 105.0 0.151 0.061
-0.9 135.0 0.352 0.055
-0.3 135.0 0.249 0.079
-0.1 135.0 0.183 0.045
0.1 135.0 0.149 0.042
0.3 135.0 0.105 0.051
0.5 135.0 0.161 0.059
0.7 135.0 0.134 0.058
0.9 135.0 0.028 0.064
-0.9 165.0 0.311 0.049
-0.7 165.0 0.116 0.067
0.9 165.0 -0.17 0.064