CLAS Physics Database

Measurement E102M6

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: 1.59 — 1.61 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 0.688 0.05 0.031
-0.7 15.0 0.657 0.047 0.037
-0.5 15.0 0.646 0.048 0.032
-0.3 15.0 0.621 0.046 0.033
-0.1 15.0 0.582 0.044 0.026
0.1 15.0 0.853 0.058 0.017
0.3 15.0 0.632 0.048 0.046
0.5 15.0 0.285 0.038 0.01
0.7 15.0 0.312 0.037 0.016
0.9 15.0 0.155 0.036 0.014
-0.9 45.0 0.609 0.059 0.007
-0.7 45.0 0.55 0.061 0.036
-0.5 45.0 0.633 0.078 0.112
-0.3 45.0 0.654 0.082 0.062
-0.1 45.0 0.672 0.072 0.083
0.1 45.0 0.63 0.074 0.027
0.3 45.0 0.464 0.052 0.068
0.5 45.0 0.441 0.057 0.018
0.7 45.0 0.278 0.056 0.009
0.9 45.0 0.317 0.057 0.052
-0.9 75.0 0.604 0.111 0.112
-0.7 75.0 1.112 0.163 0.072
-0.5 75.0 0.921 0.081 0.032
-0.3 75.0 0.873 0.07 0.024
-0.1 75.0 0.671 0.05 0.034
0.1 75.0 0.787 0.059 0.028
0.3 75.0 0.543 0.043 0.045
0.5 75.0 0.491 0.044 0.016
0.7 75.0 0.413 0.041 0.018
0.9 75.0 0.453 0.063 0.018
-0.9 105.0 0.403 0.095 0.07
-0.7 105.0 0.731 0.076 0.139
-0.5 105.0 0.701 0.051 0.015
-0.3 105.0 0.852 0.059 0.065
-0.1 105.0 0.698 0.059 0.026
0.1 105.0 0.544 0.053 0.055
0.3 105.0 0.412 0.045 0.023
0.5 105.0 0.508 0.062 0.025
0.7 105.0 0.411 0.061 0.043
0.9 105.0 0.418 0.056 0.035
-0.9 135.0 0.574 0.221 0.101
-0.7 135.0 0.609 0.1 0.081
-0.5 135.0 0.508 0.087 0.044
-0.3 135.0 0.191 0.076 0.018
-0.1 135.0 0.402 0.092 0.024
0.1 135.0 0.644 0.099 0.071
0.3 135.0 0.552 0.074 0.057
0.5 135.0 0.471 0.067 0.016
0.7 135.0 0.293 0.058 0.009
0.9 135.0 0.057 0.096 0.032
-0.9 165.0 0.47 0.194 0.124
-0.1 165.0 0.663 0.203 0.458
0.1 165.0 0.929 0.177 0.079
0.3 165.0 0.598 0.116 0.08
0.5 165.0 0.323 0.072 0.035
0.7 165.0 0.278 0.096 0.019