CLAS Physics Database

Measurement E102M27

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: 1.57 — 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 0.462 0.057 0.024
-0.7 15.0 0.425 0.055 0.01
-0.5 15.0 0.411 0.056 0.016
-0.3 15.0 0.532 0.068 0.017
-0.1 15.0 0.417 0.053 0.02
0.1 15.0 0.358 0.054 0.042
0.3 15.0 0.49 0.059 0.034
0.5 15.0 0.324 0.047 0.019
0.7 15.0 0.248 0.054 0.011
0.9 15.0 0.184 0.056 0.018
-0.9 45.0 0.376 0.058 0.028
-0.7 45.0 0.607 0.078 0.025
-0.5 45.0 0.434 0.066 0.024
-0.3 45.0 0.498 0.078 0.05
-0.1 45.0 0.4 0.073 0.026
0.1 45.0 0.4 0.07 0.024
0.3 45.0 0.349 0.071 0.016
0.5 45.0 0.356 0.063 0.031
0.7 45.0 0.277 0.082 0.018
0.9 45.0 0.104 0.052 0.007
-0.9 75.0 0.398 0.058 0.019
-0.7 75.0 0.378 0.069 0.046
-0.5 75.0 0.415 0.085 0.024
-0.3 75.0 0.273 0.072 0.012
-0.1 75.0 0.41 0.084 0.036
0.1 75.0 0.357 0.082 0.014
0.3 75.0 0.389 0.084 0.018
0.5 75.0 0.194 0.07 0.023
0.7 75.0 0.33 0.089 0.031
0.9 75.0 0.124 0.07 0.018
-0.9 105.0 0.342 0.058 0.01
-0.7 105.0 0.45 0.098 0.014
-0.5 105.0 0.399 0.121 0.053
-0.3 105.0 0.236 0.092 0.01
-0.1 105.0 0.267 0.098 0.027
0.1 105.0 0.42 0.103 0.024
0.3 105.0 0.4 0.088 0.013
0.5 105.0 0.25 0.098 0.015
0.7 105.0 0.178 0.095 0.057
0.9 105.0 0.184 0.073 0.069
-0.9 135.0 0.384 0.059 0.014
-0.7 135.0 0.409 0.1 0.044
-0.5 135.0 0.485 0.178 0.174
-0.3 135.0 0.42 0.215 0.09
-0.1 135.0 0.216 0.113 0.032
0.1 135.0 0.348 0.119 0.11
0.3 135.0 0.328 0.105 0.045
0.5 135.0 0.197 0.081 0.043
0.7 135.0 0.272 0.108 0.079
0.9 135.0 0.169 0.094 0.012
-0.9 165.0 0.352 0.06 0.011
-0.7 165.0 0.386 0.073 0.038
-0.5 165.0 0.498 0.12 0.091
-0.3 165.0 0.257 0.127 0.037
-0.1 165.0 0.273 0.246 0.142
0.5 165.0 0.086 0.243 0.04
0.7 165.0 0.1 0.174 0.056
0.9 165.0 0.087 0.072 0.009