CLAS Physics Database

Measurement E102M16

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: 1.67 — 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 0.09 0.04
-0.7 15.0 0.138 0.036
-0.5 15.0 0.149 0.038
-0.3 15.0 0.134 0.032
-0.1 15.0 0.025 0.024
0.1 15.0 0.037 0.026
0.3 15.0 0.063 0.027
0.5 15.0 0.036 0.027
0.7 15.0 0.048 0.029
0.9 15.0 0.05 0.033
-0.9 45.0 0.064 0.034
-0.7 45.0 0.127 0.04
-0.5 45.0 0.119 0.043
-0.3 45.0 0.094 0.051
-0.1 45.0 0.105 0.051
0.1 45.0 0.062 0.036
0.3 45.0 0.086 0.046
0.5 45.0 0.117 0.057
0.7 45.0 0.072 0.059
0.9 45.0 0.077 0.044
-0.9 75.0 0.119 0.041
-0.7 75.0 0.217 0.09
-0.5 75.0 0.234 0.069
-0.3 75.0 0.114 0.049
-0.1 75.0 0.096 0.046
0.1 75.0 0.184 0.047
0.3 75.0 0.134 0.044
0.5 75.0 0.179 0.051
0.7 75.0 0.124 0.041
0.9 75.0 0.167 0.062
-0.9 105.0 0.15 0.064
-0.7 105.0 0.152 0.084
-0.5 105.0 0.283 0.074
-0.3 105.0 0.048 0.035
-0.1 105.0 0.104 0.037
0.1 105.0 0.07 0.036
0.3 105.0 0.139 0.039
0.5 105.0 0.163 0.042
0.7 105.0 0.136 0.037
0.9 105.0 0.063 0.041
-0.9 135.0 0.171 0.058
-0.5 135.0 0.169 0.078
-0.3 135.0 0.025 0.052
-0.1 135.0 0.24 0.067
0.1 135.0 0.061 0.061
0.3 135.0 0.33 0.129
0.5 135.0 0.188 0.093
0.7 135.0 -0.058 0.095
0.9 135.0 0.014 0.05
-0.9 165.0 0.076 0.049
0.9 165.0 0.075 0.154