Generator

pythia8 8.230 tunes validation

Tunes:

2>
incl. 5% "theory uncertainty" on all points
max worst max worst max
default <Δ> default-CD <Δ> default-DL
min best min best min
ee → ee : γ*/Z (hadronic) 57
2.7
0.013
PbPb → Heavy Ion : minbias 100,000
5,300
1.6
pp/ppbar → 4-lepton
pp/ppbar → bb 160 +0.012 7.5 +0.29 9.5
24 -20 3.6 +1.1 4.7
1.8 -0.017 1.7 -0.015 1.7
pp/ppbar → Elastic 39 +0.38 39 +1.5 41
39 0 39 +1.0 40
39 0 39 0 39
pp/ppbar → Heavy Ion : minbias
pp/ppbar → Jets 29 +5.6 30 +6.7 27
1.8 0 1.8 -0.10 1.7
0.000014 -4.1 0.00074 -4.3 0.00014
pp/ppbar → Soft QCD (inelastic) 150 +5.0 120 +44 140
8.1 -0.30 7.8 +1.3 9.1
0.037 -31 0.019 -11 0.024
pp/ppbar → Soft QCD (nsd only) 240
30
0.14
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) 4.3
1.6
0.21
pp/ppbar → Top (all)
pp/ppbar → Top (parton level)
pp/ppbar → Top (tt) 100 +15 90 +17 93
7.0 -0.50 6.5 +0.20 6.7
0.015 -17 0.0014 -15 0.0025
pp/ppbar → Underlying Event 14 +5.7 19 +1.8 13
1.3 +0.70 2.0 +0.70 2.7
0.079 -2.2 0.12 -5.9 0.13
pp/ppbar → W+Jet 110 9.4
43 -36 7.4
17 5.4
pp/ppbar → W 30 +0.16 23 +11 34
7.1 -1.6 5.5 -1.7 3.8
1.3 -7.3 1.2 -6.7 0.64
pp/ppbar → WW 34 +4.5 36 +1.6 36
18 +1.0 19 0 19
0.58 -0.62 0.56 -1.9 0.28
pp/ppbar → Z+Jet 94 +43 280 +3.9 64
3.1 +0.80 3.9 -0.70 3.2
0.026 -25 0.067 -51 0.025
pp/ppbar → Z (Drell-Yan) 43 +4.4 79,000,000 +0.34 48
4.7 8,200,000 8,200,000 -8,200,000 7.9
0.27 -1.8 0.57 -6.3 0.68
ppPbPb → Heavy Ion : minbias 0.86
0.75
0.63

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 9073 histograms.