CLAS Physics Database

Measurement E102M34

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: 1.71 — 1.73 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 0.075 0.047
-0.7 15.0 0.004 0.038
-0.5 15.0 0.039 0.05
-0.3 15.0 0.082 0.046
-0.1 15.0 0.027 0.045
0.1 15.0 0.237 0.073
0.3 15.0 0.147 0.068
0.5 15.0 0.001 0.06
0.7 15.0 0.087 0.066
0.9 15.0 0.203 0.069
-0.9 45.0 -0.01 0.053
-0.7 45.0 0.074 0.053
-0.5 45.0 0.158 0.06
-0.3 45.0 0.037 0.059
-0.1 45.0 0.121 0.068
0.1 45.0 -0.078 0.06
0.3 45.0 0.144 0.087
0.5 45.0 0.133 0.063
0.7 45.0 0.068 0.064
0.9 45.0 0.161 0.075
-0.9 75.0 0.073 0.062
-0.7 75.0 0.043 0.066
-0.5 75.0 0.098 0.053
-0.3 75.0 0.155 0.075
-0.1 75.0 0.093 0.058
0.1 75.0 0.007 0.049
0.3 75.0 0.085 0.05
0.5 75.0 0.094 0.059
0.7 75.0 0.115 0.046
0.9 75.0 0.08 0.079
-0.9 105.0 0.01 0.064
-0.7 105.0 -0.052 0.081
-0.5 105.0 0.068 0.046
-0.3 105.0 0.054 0.034
-0.1 105.0 0.066 0.039
0.1 105.0 0.065 0.034
0.3 105.0 0.072 0.045
0.5 105.0 0.117 0.041
0.7 105.0 0.076 0.043
0.9 105.0 0.205 0.09
-0.9 135.0 0.009 0.08
-0.7 135.0 0.03 0.071
-0.5 135.0 0.066 0.069
-0.3 135.0 0.108 0.074
-0.1 135.0 -0.017 0.038
0.1 135.0 0.136 0.087
0.3 135.0 0.09 0.088
0.5 135.0 0.142 0.084
0.7 135.0 -0.103 0.063
0.9 135.0 0.197 0.092
-0.9 165.0 -0.03 0.05
0.9 165.0 0.004 0.128