CLAS Physics Database

Measurement E102M67

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: 1.59 — 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
-0.8 15.0 0.251 0.04
-0.4 15.0 0.212 0.04
0.0 15.0 0.241 0.045
0.4 15.0 0.152 0.038
0.8 15.0 0.088 0.031
-0.8 45.0 0.23 0.038
-0.4 45.0 0.086 0.033
0.0 45.0 0.173 0.041
0.4 45.0 0.089 0.035
0.8 45.0 0.057 0.034
-0.8 75.0 0.162 0.038
-0.4 75.0 0.083 0.039
0.0 75.0 0.131 0.049
0.4 75.0 0.083 0.044
0.8 75.0 0.067 0.038
-0.8 105.0 0.166 0.042
-0.4 105.0 0.16 0.05
0.0 105.0 0.108 0.08
0.4 105.0 0.031 0.094
0.8 105.0 0.04 0.045
-0.8 135.0 0.141 0.036
-0.4 135.0 0.125 0.063
0.4 135.0 0.058 0.112
0.8 135.0 0.036 0.05
-0.8 165.0 0.174 0.036
-0.4 165.0 0.142 0.042
0.0 165.0 0.053 0.037
0.4 165.0 0.015 0.052
0.8 165.0 0.008 0.035