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Measurement E39M202

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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 section were extracted by combining yields of the data pertaining to two different beam energies, 4.056 and 4.247 GeV.

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 : 1.55 GeV2
W : 2.15 GeV
ε : 0.493252

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 0 0
-0.6 -112.5 5.187989 3.744137
-0.6 -67.5 2.127928 2.618592
-0.6 -22.5 0.559798 4.49991
-0.6 22.5 4.708023 4.010158
-0.6 67.5 3.3524 4.244257
-0.6 112.5 2.640906 9.181635
-0.6 157.5 0 0
-0.25 -157.5 4.36609 5.864151
-0.25 -112.5 7.893941 3.920523
-0.25 -67.5 7.624045 3.152069
-0.25 -22.5 3.837429 4.176395
-0.25 22.5 12.345632 4.738157
-0.25 67.5 8.90752 4.508821
-0.25 112.5 0.784549 3.530956
-0.25 157.5 6.715661 6.219815
0.05 -157.5 15.066912 6.184801
0.05 -112.5 5.368758 4.425339
0.05 -67.5 9.216424 4.370152
0.05 -22.5 12.559606 5.909075
0.05 22.5 13.306739 6.147365
0.05 67.5 5.395436 5.668296
0.05 112.5 10.130466 5.067874
0.05 157.5 11.342582 5.589046
0.35 -165 21.508297 8.84813
0.35 -135 12.227716 10.004371
0.35 -105 13.560454 8.189528
0.35 -75 18.303478 9.163043
0.35 -45 13.774442 12.210271
0.35 -15 0 0
0.35 15 4.087504 14.034125
0.35 45 16.312592 11.776428
0.35 75 13.984135 8.387725
0.35 105 22.465956 7.355148
0.35 135 6.5418 9.473887
0.35 165 19.75456 8.608242
0.65 -165 25.111723 11.532687
0.65 -135 12.010023 13.639491
0.65 -105 20.591831 14.497876
0.65 -75 13.325705 12.200838
0.65 -45 0 0
0.65 -15 0 0
0.65 15 0 0
0.65 45 38.583492 18.446148
0.65 75 8.43393 12.306995
0.65 105 8.507834 14.294857
0.65 135 17.953033 14.544194
0.65 165 19.319553 10.862436
0.9 -165 11.958402 17.450893
0.9 -135 8.995527 25.167919
0.9 -105 0 0
0.9 -75 6.511733 52.597462
0.9 -45 13.982575 60.968811
0.9 -15 82.272308 51.420937
0.9 15 0 0
0.9 45 11.052128 55.891628
0.9 75 3.039673 45.350193
0.9 105 51.547604 34.81126
0.9 135 7.944908 24.694855
0.9 165 27.292259 17.496965