CLAS Physics Database

Measurement E102M25

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: 1.53 — 1.55 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 0.602 0.06 0.016
-0.7 15.0 0.482 0.06 0.025
-0.5 15.0 0.7 0.073 0.022
-0.3 15.0 0.673 0.076 0.015
-0.1 15.0 0.599 0.069 0.015
0.1 15.0 0.573 0.063 0.015
0.3 15.0 0.549 0.06 0.016
0.5 15.0 0.511 0.068 0.017
0.7 15.0 0.532 0.073 0.012
0.9 15.0 0.464 0.068 0.021
-0.9 45.0 0.738 0.075 0.018
-0.7 45.0 0.746 0.081 0.011
-0.5 45.0 0.621 0.076 0.032
-0.3 45.0 0.415 0.074 0.007
-0.1 45.0 0.66 0.086 0.023
0.1 45.0 0.645 0.078 0.037
0.3 45.0 0.644 0.082 0.017
0.5 45.0 0.464 0.084 0.021
0.7 45.0 0.646 0.092 0.017
0.9 45.0 0.51 0.081 0.02
-0.9 75.0 0.617 0.066 0.02
-0.7 75.0 0.647 0.078 0.021
-0.5 75.0 0.665 0.096 0.016
-0.3 75.0 0.839 0.106 0.019
-0.1 75.0 0.542 0.106 0.018
0.1 75.0 0.531 0.113 0.039
0.3 75.0 0.566 0.114 0.015
0.5 75.0 0.432 0.1 0.059
0.7 75.0 0.664 0.113 0.02
0.9 75.0 0.423 0.078 0.017
-0.9 105.0 0.551 0.073 0.03
-0.7 105.0 0.586 0.078 0.037
-0.5 105.0 0.735 0.11 0.027
-0.3 105.0 0.385 0.117 0.039
-0.1 105.0 0.456 0.114 0.037
0.1 105.0 0.399 0.112 0.028
0.3 105.0 0.525 0.118 0.106
0.5 105.0 0.39 0.128 0.06
0.7 105.0 0.376 0.113 0.018
0.9 105.0 0.55 0.097 0.034
-0.9 135.0 0.565 0.061 0.025
-0.7 135.0 0.492 0.079 0.034
-0.5 135.0 0.567 0.112 0.076
-0.3 135.0 0.499 0.118 0.093
-0.1 135.0 0.707 0.144 0.165
0.1 135.0 0.578 0.183 0.054
0.3 135.0 0.555 0.176 0.081
0.5 135.0 0.693 0.159 0.063
0.7 135.0 0.508 0.128 0.022
0.9 135.0 0.475 0.09 0.018
-0.9 165.0 0.569 0.067 0.013
-0.7 165.0 0.508 0.069 0.01
-0.5 165.0 0.56 0.09 0.02
-0.3 165.0 0.391 0.094 0.025
-0.1 165.0 0.58 0.118 0.041
0.1 165.0 0.715 0.161 0.076
0.3 165.0 0.482 0.121 0.077
0.5 165.0 0.803 0.153 0.133
0.7 165.0 0.862 0.149 0.07
0.9 165.0 0.47 0.096 0.009