CLAS Physics Database

Measurement E102M2

Experiment: E-89-039
Year: 2007

Measurement comment:

Electron beam energy is 1.515 GeV. Measurements are average of Phi* and 360-Phi*.
Spokespersons: S. Dytman, K. Giovanetti
Reaction: ep → η p
Polarization: none
Quantity: dσ/dΩ
Q2: 0.2 — 0.4 GeV2
W: 1.51 — 1.53 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 1.064 0.052
-0.7 15.0 1.233 0.064
-0.5 15.0 1.117 0.058
-0.3 15.0 1.213 0.063
-0.1 15.0 1.155 0.061
0.1 15.0 1.11 0.057
0.3 15.0 1.084 0.056
0.5 15.0 1.079 0.056
0.7 15.0 1.03 0.053
0.9 15.0 0.958 0.05
-0.9 45.0 1.053 0.056
-0.7 45.0 0.938 0.061
-0.5 45.0 0.905 0.062
-0.3 45.0 1.121 0.075
-0.1 45.0 0.97 0.073
0.1 45.0 1.023 0.078
0.3 45.0 0.822 0.064
0.5 45.0 1.01 0.072
0.7 45.0 1.16 0.084
0.9 45.0 0.992 0.068
-0.9 75.0 1.091 0.07
-0.7 75.0 0.969 0.094
-0.5 75.0 0.923 0.114
-0.3 75.0 0.909 0.121
-0.1 75.0 0.869 0.123
0.1 75.0 1.043 0.129
0.3 75.0 1.304 0.152
0.5 75.0 0.638 0.101
0.7 75.0 0.53 0.086
0.9 75.0 0.714 0.079
-0.9 105.0 1.379 0.101
-0.7 105.0 0.494 0.107
-0.5 105.0 1.095 0.214
-0.3 105.0 1.395 0.146
-0.1 105.0 1.609 0.122
0.1 105.0 1.362 0.089
0.3 105.0 1.255 0.088
0.5 105.0 1.422 0.111
0.7 105.0 0.876 0.096
0.9 105.0 0.367 0.077
-0.9 135.0 1.414 0.112
-0.7 135.0 0.364 0.145
-0.3 135.0 1.885 0.26
-0.1 135.0 1.35 0.134
0.1 135.0 1.279 0.098
0.3 135.0 1.938 0.149
0.5 135.0 1.499 0.132
0.7 135.0 0.78 0.125
0.9 135.0 0.759 0.116
-0.9 165.0 1.126 0.075
-0.7 165.0 0.775 0.116
0.9 165.0 0.996 0.116