Generator / tune

Pythia 8 (AU2) versions validation

Versions:

2>
incl. 5% "theory uncertainty" on all points
max worst max worst max
8.308 <Δ> 8.313 <Δ> 8.315
min best min best min
pp/ppbar → 4-lepton 120
23
6.0
pp/ppbar → bb 8,400
1,800
0.21
pp/ppbar → Elastic 37
35
34
pp/ppbar → Jets 2,100,000
2,300
0.00037
pp/ppbar → Soft QCD (inelastic) 470 730
14 17
0.073 0.050
pp/ppbar → Soft QCD (nsd only) 600
35
0.10
pp/ppbar → Total σ 2.7 0 2.7
2.7 0 2.7
2.7 0 2.7
pp/ppbar → Top (t-channel) 4.2 +0.33 4.5
1.5 -0.10 1.4
0.14 -0.85 0.071
pp/ppbar → Top (all) 0.68 1.4
0.68 +0.030 0.71
0.68 0.32
pp/ppbar → Top (parton level)
pp/ppbar → Top (tt) 120 140
7.5 8.0
0.0029 0.0059
pp/ppbar → Underlying Event 45
2.5
0.079
pp/ppbar → W+Jet 340
54
3.9
pp/ppbar → W 25 +49 65
8.7 +11 20
0.33 -4.1 0.048
pp/ppbar → WW 36
19
0.22
pp/ppbar → Z+Jet 670
11
0.028
pp/ppbar → Z (Drell-Yan) 700,000,000
2,500,000
0.038

Legend: [ χ2 < 1 ] / [ 1 ≤ χ2 < 4 ] / [ 4 ≤ χ2 ]

(click on number in the table cell to see individual observables)

The page data is based on 5738 histograms.