CLAS Physics Database

Measurement E102M28

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: 1.59 — 1.61 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 0.374 0.05
-0.7 15.0 0.271 0.042
-0.5 15.0 0.428 0.056
-0.3 15.0 0.395 0.058
-0.1 15.0 0.25 0.046
0.1 15.0 0.29 0.052
0.3 15.0 0.263 0.045
0.5 15.0 0.192 0.041
0.7 15.0 0.15 0.051
0.9 15.0 0.072 0.043
-0.9 45.0 0.349 0.059
-0.7 45.0 0.354 0.055
-0.5 45.0 0.36 0.07
-0.3 45.0 0.435 0.068
-0.1 45.0 0.452 0.082
0.1 45.0 0.311 0.068
0.3 45.0 0.278 0.064
0.5 45.0 0.179 0.061
0.7 45.0 0.209 0.063
0.9 45.0 0.089 0.051
-0.9 75.0 0.354 0.053
-0.7 75.0 0.387 0.075
-0.5 75.0 0.477 0.094
-0.3 75.0 0.44 0.096
-0.1 75.0 0.286 0.077
0.1 75.0 0.194 0.066
0.3 75.0 0.091 0.053
0.5 75.0 0.177 0.071
0.7 75.0 0.19 0.067
0.9 75.0 0.092 0.075
-0.9 105.0 0.382 0.067
-0.7 105.0 0.34 0.094
-0.5 105.0 0.157 0.084
-0.3 105.0 0.293 0.091
-0.1 105.0 0.28 0.08
0.1 105.0 0.334 0.08
0.3 105.0 0.194 0.067
0.5 105.0 0.191 0.064
0.7 105.0 0.172 0.068
0.9 105.0 0.192 0.094
-0.9 135.0 0.239 0.052
-0.7 135.0 0.292 0.103
-0.5 135.0 0.316 0.238
-0.3 135.0 0.009 0.103
-0.1 135.0 0.086 0.087
0.1 135.0 0.185 0.07
0.3 135.0 0.204 0.077
0.5 135.0 0.182 0.065
0.7 135.0 0.331 0.105
0.9 135.0 0.071 0.068
-0.9 165.0 0.32 0.058
-0.7 165.0 0.249 0.078
-0.5 165.0 0.273 0.151
0.9 165.0 0.261 0.104