CLAS Physics Database

Measurement E102M14

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: 1.63 — 1.65 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 0.183 0.034
-0.7 15.0 0.181 0.033
-0.5 15.0 0.211 0.035
-0.3 15.0 0.234 0.037
-0.1 15.0 0.162 0.03
0.1 15.0 0.126 0.026
0.3 15.0 0.114 0.028
0.5 15.0 0.083 0.029
0.7 15.0 0.044 0.028
0.9 15.0 0.02 0.028
-0.9 45.0 0.169 0.038
-0.7 45.0 0.235 0.039
-0.5 45.0 0.115 0.039
-0.3 45.0 0.236 0.046
-0.1 45.0 0.197 0.047
0.1 45.0 0.171 0.044
0.3 45.0 0.179 0.053
0.5 45.0 0.132 0.053
0.7 45.0 0.117 0.045
0.9 45.0 0.026 0.038
-0.9 75.0 0.301 0.05
-0.7 75.0 0.16 0.06
-0.5 75.0 0.242 0.073
-0.3 75.0 0.195 0.08
-0.1 75.0 0.213 0.055
0.1 75.0 0.193 0.055
0.3 75.0 0.167 0.044
0.5 75.0 0.143 0.054
0.7 75.0 0.162 0.055
0.9 75.0 -0.052 0.047
-0.9 105.0 0.24 0.057
-0.5 105.0 0.158 0.062
-0.3 105.0 0.239 0.049
-0.1 105.0 0.147 0.037
0.1 105.0 0.116 0.035
0.3 105.0 0.104 0.038
0.5 105.0 0.122 0.038
0.7 105.0 0.084 0.04
0.9 105.0 0.115 0.054
-0.9 135.0 0.171 0.045
-0.5 135.0 0.212 0.109
-0.3 135.0 0.079 0.047
-0.1 135.0 0.135 0.046
0.1 135.0 0.182 0.046
0.3 135.0 -0.026 0.047
0.5 135.0 0.078 0.047
0.7 135.0 -0.019 0.058
0.9 135.0 0.061 0.058
-0.9 165.0 0.172 0.044
-0.7 165.0 -0.061 0.074
0.9 165.0 -0.115 0.085