Generator / tune

Pythia 8 (A2) 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 8,600
1,700
0.21
pp/ppbar → Elastic 36
35
34
pp/ppbar → Jets 2,500
6.9
0.0019
pp/ppbar → Soft QCD (inelastic) 720
17
0.024
pp/ppbar → Soft QCD (nsd only) 770
40
0.032
pp/ppbar → Total σ 2.7 0 2.7 0 2.7
2.7 0 2.7 0 2.7
2.7 0 2.7 0 2.7
pp/ppbar → Top (t-channel) 4.7
1.4
0.086
pp/ppbar → Top (all) 1.7
0.80
0.47
pp/ppbar → Top (parton level)
pp/ppbar → Top (tt) 140
8.4
0.000052
pp/ppbar → Underlying Event 100
4.0
0.014
pp/ppbar → W+Jet 540
71
3.9
pp/ppbar → W 22 62
8.8 21
0.11 0.21
pp/ppbar → WW 35
19
0.52
pp/ppbar → Z+Jet 660 970
7.0 13
0.12 0.026
pp/ppbar → Z (Drell-Yan) 910,000,000
3,200,000
0.057

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 5008 histograms.