Generator / tune

Pythia 8 (AZ) 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
20
4.1
pp/ppbar → bb 44,000
8,500
1.8
pp/ppbar → Elastic 37
36
34
pp/ppbar → Jets 12,000
18
0.0013
pp/ppbar → Soft QCD (inelastic) 490 1,400
17 57
0.012 0.022
pp/ppbar → Soft QCD (nsd only) 620 14,000
61 1,100
0.083 0.19
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) 4.8 +0.13 5.0 +0.15 4.7
1.7 -0.50 1.2 0 1.2
0.16 -1.7 0.045 -0.26 0.055
pp/ppbar → Top (all) 0.97 1.5
0.78 0.73
0.59 0.29
pp/ppbar → Top (parton level)
pp/ppbar → Top (tt) 100 510
7.3 7.4
0.0025 0.0021
pp/ppbar → Underlying Event 1,300
77
0.27
pp/ppbar → W+Jet 140
47
22
pp/ppbar → W 76
21
0.014
pp/ppbar → WW 34
18
0.44
pp/ppbar → Z+Jet 880
27
0.036
pp/ppbar → Z (Drell-Yan) 240,000,000 810,000,000
1,200,000 3,300,000
0.33 0.032

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 5946 histograms.