CLAS Physics Database

JLab | Search | Overview | Login | Edit | Register

Measurement E102M44

You are not logged in.

Experiment: E-89-039, 2007

Spokespersons: S. Dytman, K. Giovanetti

Measurement comment: Electron beam energy is 4.056 GeV. Measurements are average of Phi* and 360-Phi*.

Publication:

Quantity measured: dσ/dΩ, mcbn/srad
Differential cross section.
Beam: e, polarization: none
Target: p (Z=1, A=1), polarization: none
Final state: η p, polarization: none

Q2 : 1.3 — 2.1 GeV2
W : 1.65 — 1.67 GeV

Select data slice:
cos(θ) = dimensionless

Fit φ dependence:

Observable quantity measured (Y axis): dσ/dΩ, mcbn/srad
Plot measurement data

Parameter (X axis): φ, degree

Click here to get data in text file, delimited with tabs.

Click here to get calculated fit coefficients in text file, delimited with tabs.

Measured data:

cos(θ),
dimensionless
φ,
degree
dσ/dΩ,
mcbn/srad
Data errors,
mcbn/srad
Systematic errors,
mcbn/srad
-0.8 15 0.135 0.031 0.01
-0.4 15 0.048 0.022 0.004
0 15 0.062 0.027 0.004
0.4 15 0.034 0.021 0.001
0.8 15 0.008 0.02 0.001
-0.8 45 0.113 0.031 0.004
-0.4 45 0.091 0.031 0.006
0 45 0.073 0.028 0.004
0.4 45 0.007 0.023 0.005
0.8 45 0.013 0.027 0.001
-0.8 75 0.14 0.035 0.003
-0.4 75 0.097 0.044 0.002
0.4 75 0.014 0.058 0.019
0.8 75 -0.011 0.055 0.011
-0.8 105 0.088 0.032 0.011
0 105 0.182 0.126 0
0.4 105 -0.003 0.048 0.01
0.8 105 -0.046 0.042 0.004
-0.8 135 0.136 0.042 0.004
0.4 135 0.199 0.078 0.04
0.8 135 0.15 0.071 0.024
-0.8 165 0.204 0.041 0.022
-0.4 165 0.153 0.061 0.008
0.8 165 0.034 0.051 0.006