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Measurement E39M174

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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 : 1.725 GeV
ε : 0.530889

Select data slice:
cos(θ) =

Fit φ dependence:

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

Parameter (X axis): φ,

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Measured data:

cos(θ) φ dσ/dΩ,
nb/sr
Data errors,
nb/sr
-0.6 -157.5 14.410763 6.022618
-0.6 -112.5 10.35487 7.623363
-0.6 -67.5 6.45169 4.507581
-0.6 -22.5 19.235193 18.25174
-0.6 22.5 0 0
-0.6 67.5 2.569542 9.164886
-0.6 112.5 9.513188 6.156969
-0.6 157.5 7.521936 5.159703
-0.25 -157.5 13.125991 6.058619
-0.25 -112.5 13.940419 7.641271
-0.25 -67.5 12.800631 8.929781
-0.25 -22.5 0 0
-0.25 22.5 0 0
-0.25 67.5 12.895511 9.955114
-0.25 112.5 12.726058 9.426806
-0.25 157.5 9.331917 5.61691
0.05 -165 14.677172 6.688155
0.05 -135 13.66366 6.201522
0.05 -105 19.406898 8.356694
0.05 -75 6.569223 9.864499
0.05 -45 26.923595 12.549237
0.05 -15 0 0
0.05 15 0 0
0.05 45 14.802605 10.47087
0.05 75 23.740566 11.451959
0.05 105 22.387438 11.313715
0.05 135 13.504955 7.551162
0.05 165 12.98945 6.578727
0.35 -165 15.312852 7.040648
0.35 -135 23.813396 9.717326
0.35 -105 23.897116 12.261458
0.35 -75 33.989281 14.687656
0.35 -45 27.169851 15.211468
0.35 -15 0 0
0.35 15 0 0
0.35 45 12.655439 22.543272
0.35 75 4.898299 12.4196
0.35 105 7.387925 10.394931
0.35 135 15.226995 10.908822
0.35 165 23.746763 7.274256
0.65 -165 8.133918 5.583676
0.65 -135 17.614649 9.963732
0.65 -105 11.528053 13.520514
0.65 -75 10.111541 16.233326
0.65 -45 21.388681 17.19779
0.65 -15 0 0
0.65 15 51.325226 32.279427
0.65 45 18.766497 12.068815
0.65 75 18.89814 12.895351
0.65 105 10.610476 7.218956
0.65 135 23.789637 10.300974
0.65 165 10.456353 7.013685
0.9 -165 6.400096 14.022559
0.9 -135 11.187016 13.919545
0.9 -105 9.186444 17.336725
0.9 -75 31.366949 18.556898
0.9 -45 4.606287 19.349453
0.9 -15 6.942457 23.922197
0.9 15 17.878885 25.212418
0.9 45 0.000502 21.643803
0.9 75 21.717911 15.131913
0.9 105 14.221388 16.294462
0.9 135 12.746546 11.26758
0.9 165 22.323673 13.313057