CLAS Physics Database

Measurement E102M63

Experiment: E-89-039
Year: 2007

Measurement comment:

Electron beam energy is 4.056 GeV. Measurements are average of Phi* and 360-Phi*.
Spokespersons: S. Dytman, K. Giovanetti
Reaction: ep → η p
Polarization: none
Quantity: dσ/dΩ
Q2: 2.1 — 2.9 GeV2
W: 1.51 — 1.53 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.
-0.8 15.0 0.376 0.053 0.011
-0.4 15.0 0.339 0.053 0.005
0.0 15.0 0.309 0.054 0.015
0.4 15.0 0.364 0.059 0.011
0.8 15.0 0.371 0.064 0.02
-0.8 45.0 0.256 0.05 0.015
-0.4 45.0 0.302 0.053 0.012
0.0 45.0 0.22 0.046 0.008
0.4 45.0 0.222 0.045 0.008
0.8 45.0 0.275 0.054 0.005
-0.8 75.0 0.257 0.049 0.005
-0.4 75.0 0.263 0.047 0.006
0.0 75.0 0.377 0.06 0.019
0.4 75.0 0.263 0.049 0.018
0.8 75.0 0.291 0.054 0.014
-0.8 105.0 0.283 0.045 0.012
-0.4 105.0 0.246 0.056 0.006
0.0 105.0 0.292 0.058 0.018
0.4 105.0 0.243 0.058 0.007
0.8 105.0 0.227 0.057 0.015
-0.8 135.0 0.285 0.05 0.013
-0.4 135.0 0.254 0.056 0.007
0.0 135.0 0.246 0.059 0.008
0.4 135.0 0.306 0.064 0.013
0.8 135.0 0.211 0.046 0.006
-0.8 165.0 0.224 0.043 0.015
-0.4 165.0 0.208 0.046 0.015
0.0 165.0 0.25 0.052 0.017
0.4 165.0 0.237 0.052 0.016
0.8 165.0 0.176 0.039 0.009