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Measurement E39M179

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Experiment: E1-5st-Sigma0 (E93-030/E00-112), 1999

Spokespersons: Mestayer, Hicks, Carman, Raue

Experiment comment: 5 structure function group analysis results for the K+Σ0 channel.

Measurement comment: Differential cross sections for two different torus currents, 1500A and 2250A at 2.567GeV beam energy, were combined using error weighted average.

Publication:

Quantity measured: dσ/dΩ, nb/sr
Differential cross section.
Beam: e, polarization: none
Target: p (Z=1, A=1), polarization: none
Final state: K+ Σ0, polarization: none

Q2 : 1 GeV2
W : 1.975 GeV
ε : 0.231093

Select data slice:
cos(θ) =

Fit φ dependence:

Observable quantity measured (Y axis): dσ/dΩ, nb/sr
Plot measurement data

Parameter (X axis): φ,

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) φ dσ/dΩ,
nb/sr
Data errors,
nb/sr
-0.6 -157.5 13.250233 14.458894
-0.6 -112.5 15.115943 8.855781
-0.6 -67.5 26.657005 8.892614
-0.6 -22.5 9.113308 8.277509
-0.6 22.5 13.433017 8.861994
-0.6 67.5 21.178459 8.297522
-0.6 112.5 21.713137 7.872942
-0.6 157.5 19.712009 13.068752
-0.25 -157.5 36.47794 9.89714
-0.25 -112.5 31.214346 8.763496
-0.25 -67.5 32.675404 9.847339
-0.25 -22.5 12.970078 10.23961
-0.25 22.5 38.579021 11.909662
-0.25 67.5 38.012932 9.709033
-0.25 112.5 30.093288 8.999616
-0.25 157.5 33.730862 11.264486
0.05 -165 39.774555 12.879352
0.05 -135 55.952 13.403906
0.05 -105 56.238949 11.537953
0.05 -75 58.610691 13.550544
0.05 -45 57.916683 11.482901
0.05 -15 33.333805 18.038078
0.05 15 52.37537 17.837
0.05 45 48.365917 11.605911
0.05 75 49.691437 13.688332
0.05 105 52.570797 11.88675
0.05 135 60.853794 13.247508
0.05 165 48.310192 15.18484
0.35 -165 46.646278 12.06136
0.35 -135 62.153252 14.959888
0.35 -105 50.544296 12.620073
0.35 -75 53.989342 14.893055
0.35 -45 27.56576 15.321267
0.35 -15 12.283695 19.35137
0.35 15 32.289043 22.098406
0.35 45 46.234509 12.486424
0.35 75 43.311371 15.28661
0.35 105 32.719093 11.376592
0.35 135 34.846256 12.000552
0.35 165 41.383804 13.183944
0.65 -165 29.812836 13.982489
0.65 -135 51.657219 16.741886
0.65 -105 45.671356 15.248546
0.65 -75 25.547323 18.012753
0.65 -45 20.828152 23.488144
0.65 -15 0 0
0.65 15 0 0
0.65 45 29.527605 23.893816
0.65 75 32.676968 18.803291
0.65 105 36.308422 16.564548
0.65 135 56.977894 18.130575
0.65 165 46.201004 16.504881
0.9 -165 25.119743 20.759739
0.9 -135 27.55662 25.238941
0.9 -105 44.417423 21.202875
0.9 -75 41.246544 30.198292
0.9 -45 0 0
0.9 -15 0 0
0.9 15 0 0
0.9 45 0 0
0.9 75 46.928558 29.842916
0.9 105 39.207954 31.026834
0.9 135 20.496805 27.819532
0.9 165 47.027027 23.072899