CLAS Physics Database

Measurement E102M5

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: 1.57 — 1.59 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 0.755 0.048 0.015
-0.7 15.0 0.698 0.043 0.012
-0.5 15.0 0.676 0.044 0.012
-0.3 15.0 0.938 0.056 0.006
-0.1 15.0 0.732 0.049 0.056
0.1 15.0 0.866 0.049 0.038
0.3 15.0 0.741 0.049 0.047
0.5 15.0 0.635 0.046 0.032
0.7 15.0 0.489 0.043 0.021
0.9 15.0 0.421 0.042 0.027
-0.9 45.0 0.723 0.061 0.02
-0.7 45.0 0.834 0.08 0.049
-0.5 45.0 0.534 0.057 0.034
-0.3 45.0 0.687 0.064 0.018
-0.1 45.0 0.669 0.073 0.189
0.1 45.0 0.72 0.068 0.006
0.3 45.0 0.676 0.06 0.052
0.5 45.0 0.861 0.088 0.093
0.7 45.0 0.671 0.086 0.045
0.9 45.0 0.426 0.057 0.023
-0.9 75.0 0.775 0.081 0.043
-0.7 75.0 0.824 0.118 0.175
-0.5 75.0 1.077 0.103 0.042
-0.3 75.0 0.91 0.071 0.038
-0.1 75.0 0.985 0.07 0.056
0.1 75.0 0.809 0.055 0.053
0.3 75.0 0.709 0.05 0.035
0.5 75.0 0.604 0.046 0.032
0.7 75.0 0.725 0.057 0.042
0.9 75.0 0.374 0.054 0.025
-0.9 105.0 0.64 0.124 0.372
-0.7 105.0 0.755 0.076 0.095
-0.5 105.0 0.862 0.058 0.052
-0.3 105.0 0.867 0.053 0.081
-0.1 105.0 0.712 0.05 0.029
0.1 105.0 0.589 0.046 0.018
0.3 105.0 0.623 0.052 0.034
0.5 105.0 0.595 0.051 0.02
0.7 105.0 0.599 0.056 0.004
0.9 105.0 0.367 0.049 0.022
-0.9 135.0 0.612 0.131 0.046
-0.7 135.0 1.2 0.171 0.3
-0.5 135.0 0.754 0.09 0.02
-0.3 135.0 0.491 0.075 0.025
-0.1 135.0 0.766 0.16 0.059
0.1 135.0 0.622 0.112 0.095
0.3 135.0 0.577 0.115 0.061
0.5 135.0 0.582 0.105 0.148
0.7 135.0 0.306 0.087 0.046
0.9 135.0 0.372 0.133 0.037
-0.9 165.0 0.616 0.112 0.032
0.3 165.0 1.012 0.207 0.251
0.5 165.0 0.856 0.181 0.071
0.7 165.0 0.337 0.124 0.096