CLAS Physics Database

Measurement E102M26

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: 1.55 — 1.57 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 syst. uncert.
-0.9 15.0 0.588 0.061 0.022
-0.7 15.0 0.452 0.058 0.029
-0.5 15.0 0.582 0.064 0.02
-0.3 15.0 0.628 0.072 0.047
-0.1 15.0 0.48 0.06 0.014
0.1 15.0 0.604 0.067 0.027
0.3 15.0 0.443 0.056 0.015
0.5 15.0 0.336 0.056 0.016
0.7 15.0 0.487 0.066 0.027
0.9 15.0 0.301 0.061 0.016
-0.9 45.0 0.515 0.067 0.011
-0.7 45.0 0.519 0.062 0.053
-0.5 45.0 0.497 0.066 0.038
-0.3 45.0 0.444 0.073 0.012
-0.1 45.0 0.497 0.078 0.034
0.1 45.0 0.392 0.067 0.016
0.3 45.0 0.469 0.072 0.044
0.5 45.0 0.348 0.069 0.024
0.7 45.0 0.457 0.083 0.034
0.9 45.0 0.4 0.066 0.03
-0.9 75.0 0.532 0.069 0.023
-0.7 75.0 0.382 0.064 0.031
-0.5 75.0 0.673 0.098 0.027
-0.3 75.0 0.649 0.089 0.031
-0.1 75.0 0.358 0.079 0.018
0.1 75.0 0.429 0.1 0.039
0.3 75.0 0.626 0.099 0.049
0.5 75.0 0.27 0.08 0.012
0.7 75.0 0.371 0.084 0.028
0.9 75.0 0.291 0.076 0.022
-0.9 105.0 0.589 0.067 0.02
-0.7 105.0 0.423 0.078 0.022
-0.5 105.0 0.442 0.109 0.088
-0.3 105.0 0.393 0.108 0.022
-0.1 105.0 0.573 0.141 0.062
0.1 105.0 0.441 0.112 0.022
0.3 105.0 0.334 0.094 0.021
0.5 105.0 0.301 0.097 0.055
0.7 105.0 0.29 0.085 0.045
0.9 105.0 0.224 0.081 0.018
-0.9 135.0 0.369 0.055 0.01
-0.7 135.0 0.443 0.083 0.014
-0.5 135.0 0.491 0.121 0.029
-0.3 135.0 0.507 0.184 0.126
-0.1 135.0 0.428 0.196 0.279
0.1 135.0 0.404 0.198 0.036
0.3 135.0 0.216 0.128 0.015
0.5 135.0 0.247 0.124 0.037
0.7 135.0 0.296 0.117 0.064
0.9 135.0 0.303 0.081 0.034
-0.9 165.0 0.64 0.071 0.009
-0.7 165.0 0.694 0.095 0.023
-0.5 165.0 0.52 0.111 0.042
-0.3 165.0 0.326 0.102 0.028
-0.1 165.0 0.273 0.125 0.049
0.1 165.0 0.322 0.16 0.087
0.3 165.0 0.487 0.153 0.128
0.5 165.0 0.599 0.173 0.085
0.7 165.0 0.687 0.149 0.161
0.9 165.0 0.283 0.079 0.022