CLAS Physics Database

Measurement E102M36

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: 1.3 — 2.1 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
-0.8 15.0 0.505 0.072
-0.4 15.0 0.408 0.063
0.0 15.0 0.423 0.06
0.4 15.0 0.387 0.058
0.8 15.0 0.364 0.055
-0.8 45.0 0.397 0.06
-0.4 45.0 0.445 0.063
0.0 45.0 0.391 0.059
0.4 45.0 0.333 0.059
0.8 45.0 0.334 0.058
-0.8 75.0 0.435 0.056
-0.4 75.0 0.386 0.055
0.0 75.0 0.366 0.052
0.4 75.0 0.352 0.052
0.8 75.0 0.288 0.054
-0.8 105.0 0.514 0.064
-0.4 105.0 0.406 0.052
0.0 105.0 0.356 0.049
0.4 105.0 0.353 0.051
0.8 105.0 0.265 0.051
-0.8 135.0 0.356 0.052
-0.4 135.0 0.369 0.047
0.0 135.0 0.311 0.051
0.4 135.0 0.395 0.057
0.8 135.0 0.315 0.054
-0.8 165.0 0.388 0.045
-0.4 165.0 0.287 0.047
0.0 165.0 0.295 0.053
0.4 165.0 0.307 0.051
0.8 165.0 0.298 0.053