Generator / tune

Pythia 8 (4C) 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
6.2
pp/ppbar → bb 15,000
3,000
0.21
pp/ppbar → Elastic 36
35
34
pp/ppbar → Jets 550
4.4
0.00015
pp/ppbar → Soft QCD (inelastic) 750
16
0.0047
pp/ppbar → Soft QCD (nsd only) 560
34
0.059
pp/ppbar → Total σ 2.7
2.7
2.7
pp/ppbar → Top (t-channel) 4.3 +0.38 4.5
1.3 +0.100 1.4
0.067 -0.27 0.068
pp/ppbar → Top (all) 2.8
0.92
0.14
pp/ppbar → Top (parton level)
pp/ppbar → Top (tt) 150
8.7
0.0069
pp/ppbar → Underlying Event 44
2.6
0.014
pp/ppbar → W+Jet 220
47
5.9
pp/ppbar → W 58
21
0.31
pp/ppbar → WW 35
19
0.52
pp/ppbar → Z+Jet 580
13
0.083
pp/ppbar → Z (Drell-Yan) 840,000,000
2,800,000
0.043

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 4410 histograms.