Generator / tune

Pythia 8 (A2M) 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 120 120
22 22
3.0 3.0
pp/ppbar → bb 9,600
1,900
0.38
pp/ppbar → Elastic 36 37
35 35
34 34
pp/ppbar → Jets 12,000
12
0.00020
pp/ppbar → Soft QCD (inelastic) 560 +260 820
14 +4.0 18
0.037 -18 0.042
pp/ppbar → Soft QCD (nsd only) 1,000
52
0.073
pp/ppbar → Total σ 2.7
2.7
2.7
pp/ppbar → Top (t-channel) 4.5 +0.30 4.7
1.3 0 1.3
0.054 -0.17 0.066
pp/ppbar → Top (all) 1.1
0.71
0.39
pp/ppbar → Top (parton level)
pp/ppbar → Top (tt) 140
7.7
0.0022
pp/ppbar → Underlying Event 44
2.6
0.11
pp/ppbar → W+Jet 370
60
3.8
pp/ppbar → W 54
18
0.64
pp/ppbar → WW 35
19
0.43
pp/ppbar → Z+Jet 710
13
0.038
pp/ppbar → Z (Drell-Yan) 830,000,000
2,800,000
0.22

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 4691 histograms.