CLAS Physics Database

Measurement E102M23

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: 1.49 — 1.51 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 0.555 0.07 0.066
-0.7 15.0 0.755 0.09 0.091
-0.5 15.0 0.504 0.071 0.056
-0.3 15.0 0.549 0.068 0.043
-0.1 15.0 0.456 0.066 0.042
0.1 15.0 0.621 0.072 0.035
0.3 15.0 0.433 0.059 0.047
0.5 15.0 0.428 0.058 0.023
0.7 15.0 0.499 0.073 0.034
0.9 15.0 0.543 0.08 0.048
-0.9 45.0 0.584 0.074 0.066
-0.7 45.0 0.547 0.072 0.054
-0.5 45.0 0.603 0.082 0.064
-0.3 45.0 0.451 0.063 0.036
-0.1 45.0 0.582 0.074 0.049
0.1 45.0 0.579 0.074 0.019
0.3 45.0 0.552 0.076 0.037
0.5 45.0 0.415 0.068 0.022
0.7 45.0 0.496 0.075 0.02
0.9 45.0 0.36 0.075 0.024
-0.9 75.0 0.642 0.08 0.071
-0.7 75.0 0.607 0.075 0.059
-0.5 75.0 0.633 0.074 0.013
-0.3 75.0 0.577 0.078 0.03
-0.1 75.0 0.472 0.07 0.036
0.1 75.0 0.535 0.076 0.03
0.3 75.0 0.465 0.076 0.036
0.5 75.0 0.529 0.084 0.021
0.7 75.0 0.545 0.088 0.029
0.9 75.0 0.471 0.075 0.032
-0.9 105.0 0.534 0.066 0.051
-0.7 105.0 0.5 0.067 0.039
-0.5 105.0 0.557 0.082 0.034
-0.3 105.0 0.384 0.077 0.037
-0.1 105.0 0.513 0.095 0.031
0.1 105.0 0.585 0.095 0.032
0.3 105.0 0.52 0.079 0.039
0.5 105.0 0.285 0.071 0.018
0.7 105.0 0.44 0.091 0.014
0.9 105.0 0.42 0.073 0.021
-0.9 135.0 0.508 0.069 0.077
-0.7 135.0 0.5 0.067 0.046
-0.5 135.0 0.482 0.069 0.04
-0.3 135.0 0.58 0.092 0.052
-0.1 135.0 0.666 0.097 0.055
0.1 135.0 0.546 0.09 0.033
0.3 135.0 0.35 0.102 0.022
0.5 135.0 0.374 0.086 0.027
0.7 135.0 0.506 0.1 0.041
0.9 135.0 0.442 0.076 0.027
-0.9 165.0 0.532 0.06 0.071
-0.7 165.0 0.487 0.065 0.056
-0.5 165.0 0.41 0.065 0.059
-0.3 165.0 0.465 0.07 0.058
-0.1 165.0 0.57 0.085 0.077
0.1 165.0 0.389 0.07 0.048
0.3 165.0 0.287 0.067 0.027
0.5 165.0 0.25 0.069 0.018
0.7 165.0 0.368 0.075 0.024
0.9 165.0 0.482 0.077 0.049