CLAS Physics Database

Measurement E102M32

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: 1.67 — 1.69 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 0.105 0.036
-0.7 15.0 0.12 0.036
-0.5 15.0 0.055 0.035
-0.3 15.0 0.094 0.038
-0.1 15.0 0.165 0.047
0.1 15.0 0.014 0.044
0.3 15.0 -0.001 0.04
0.5 15.0 -0.041 0.025
0.7 15.0 0.165 0.044
0.9 15.0 0.067 0.049
-0.9 45.0 0.104 0.036
-0.7 45.0 0.036 0.025
-0.5 45.0 0.106 0.048
-0.3 45.0 0.05 0.042
-0.1 45.0 0.028 0.054
0.1 45.0 0.077 0.055
0.3 45.0 0.131 0.051
0.5 45.0 -0.012 0.043
0.7 45.0 0.096 0.07
0.9 45.0 0.107 0.063
-0.9 75.0 0.011 0.051
-0.7 75.0 0.07 0.051
-0.5 75.0 0.092 0.045
-0.3 75.0 0.136 0.069
-0.1 75.0 0.052 0.036
0.1 75.0 0.065 0.039
0.3 75.0 0.058 0.038
0.5 75.0 0.115 0.045
0.7 75.0 0.055 0.042
0.9 75.0 -0.042 0.063
-0.9 105.0 0.014 0.052
-0.7 105.0 -0.038 0.047
-0.5 105.0 0.092 0.055
-0.3 105.0 0.03 0.047
-0.1 105.0 0.048 0.032
0.1 105.0 0.011 0.033
0.3 105.0 0.041 0.032
0.5 105.0 0.074 0.04
0.7 105.0 0.169 0.052
0.9 105.0 0.113 0.068
-0.9 135.0 -0.021 0.05
-0.7 135.0 0.173 0.16
-0.5 135.0 0.107 0.089
-0.3 135.0 0.029 0.047
-0.1 135.0 0.026 0.043
0.1 135.0 0.073 0.07
0.3 135.0 0.147 0.076
0.5 135.0 0.106 0.06
0.7 135.0 -0.026 0.043
0.9 135.0 0.067 0.071
-0.9 165.0 -0.026 0.051
0.9 165.0 0.191 0.141