CLAS Physics Database

Measurement E102M12

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: 0.6 — 1.0 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 0.433 0.043 0.018
-0.7 15.0 0.514 0.05 0.031
-0.5 15.0 0.453 0.049 0.032
-0.3 15.0 0.378 0.043 0.024
-0.1 15.0 0.438 0.048 0.021
0.1 15.0 0.386 0.041 0.04
0.3 15.0 0.373 0.041 0.031
0.5 15.0 0.304 0.042 0.022
0.7 15.0 0.219 0.043 0.021
0.9 15.0 0.178 0.046 0.015
-0.9 45.0 0.411 0.045 0.017
-0.7 45.0 0.563 0.058 0.02
-0.5 45.0 0.408 0.052 0.036
-0.3 45.0 0.446 0.059 0.066
-0.1 45.0 0.297 0.054 0.016
0.1 45.0 0.287 0.049 0.016
0.3 45.0 0.384 0.062 0.025
0.5 45.0 0.363 0.061 0.03
0.7 45.0 0.234 0.053 0.013
0.9 45.0 0.091 0.04 0.01
-0.9 75.0 0.518 0.058 0.022
-0.7 75.0 0.458 0.077 0.024
-0.5 75.0 0.302 0.078 0.026
-0.3 75.0 0.39 0.105 0.016
-0.1 75.0 0.457 0.105 0.02
0.1 75.0 0.425 0.093 0.024
0.3 75.0 0.15 0.065 0.006
0.5 75.0 0.298 0.078 0.024
0.7 75.0 0.256 0.081 0.013
0.9 75.0 0.078 0.06 0.005
-0.9 105.0 0.4 0.054 0.033
-0.7 105.0 0.741 0.142 0.071
-0.3 105.0 0.442 0.105 0.053
-0.1 105.0 0.504 0.072 0.011
0.1 105.0 0.386 0.061 0.033
0.3 105.0 0.44 0.063 0.012
0.5 105.0 0.312 0.058 0.028
0.7 105.0 0.327 0.07 0.013
0.9 105.0 0.178 0.072 0.017
-0.9 135.0 0.425 0.054 0.021
-0.7 135.0 0.523 0.118 0.056
-0.3 135.0 0.63 0.146 0.088
-0.1 135.0 0.392 0.07 0.028
0.1 135.0 0.24 0.052 0.005
0.3 135.0 0.348 0.059 0.018
0.5 135.0 0.309 0.062 0.018
0.7 135.0 0.234 0.055 0.007
0.9 135.0 0.173 0.073 0.014
-0.9 165.0 0.524 0.057 0.019
-0.7 165.0 0.401 0.069 0.018
-0.5 165.0 0.287 0.129 0.056
0.9 165.0 0.076 0.076 0.006