CLAS Physics Database

Measurement E102M18

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: 0.6 — 1.0 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 0.039 0.037
-0.7 15.0 0.051 0.034
-0.5 15.0 0.061 0.032
-0.3 15.0 0.098 0.037
-0.1 15.0 0.042 0.033
0.1 15.0 0.075 0.034
0.3 15.0 0.101 0.037
0.5 15.0 0.158 0.04
0.7 15.0 0.176 0.043
0.9 15.0 0.146 0.038
-0.9 45.0 0.074 0.037
-0.7 45.0 0.112 0.047
-0.5 45.0 0.08 0.054
-0.3 45.0 0.064 0.049
-0.1 45.0 0.028 0.047
0.1 45.0 0.179 0.071
0.3 45.0 0.071 0.053
0.5 45.0 0.193 0.06
0.7 45.0 0.066 0.049
0.9 45.0 0.161 0.058
-0.9 75.0 0.122 0.05
-0.7 75.0 0.037 0.073
-0.5 75.0 -0.009 0.033
-0.3 75.0 0.137 0.049
-0.1 75.0 0.155 0.051
0.1 75.0 0.178 0.045
0.3 75.0 0.232 0.05
0.5 75.0 0.17 0.044
0.7 75.0 0.26 0.046
0.9 75.0 0.211 0.072
-0.9 105.0 0.028 0.061
-0.7 105.0 0.101 0.07
-0.5 105.0 0.147 0.05
-0.3 105.0 0.122 0.036
-0.1 105.0 0.145 0.039
0.1 105.0 0.166 0.044
0.3 105.0 0.184 0.05
0.5 105.0 0.141 0.039
0.7 105.0 0.128 0.042
0.9 105.0 0.209 0.053
-0.9 135.0 0.119 0.077
-0.7 135.0 0.08 0.088
-0.5 135.0 0.092 0.054
-0.3 135.0 0.124 0.056
-0.1 135.0 0.227 0.081
0.1 135.0 0.158 0.117
0.3 135.0 -0.103 0.123
0.5 135.0 0.184 0.069
0.7 135.0 0.197 0.099
0.9 135.0 0.093 0.058
-0.9 165.0 -0.042 0.06
0.1 165.0 0.281 0.17
0.3 165.0 0.372 0.132
0.5 165.0 0.392 0.151
0.7 165.0 0.338 0.123