Generator / tune

Pythia 8 (Def) versions validation

Versions:

2>
incl. 5% "theory uncertainty" on all points
max worst max worst max
8.306 <Δ> 8.307 <Δ> 8.308
min best min best min
ee → ee : γ*/Z (hadronic) 58 +0.97 220 +0.94 220
1.6 +0.60 2.2 0 2.2
0.000027 -0.70 0.0022 -0.74 0.00054
PbPb → PbPb : minbias 360
? ? 95
0.083
pp/ppbar → 4-lepton 120 +0.41 120 +0.65 120
23 0 23 0 23
2.7 -0.31 2.9 -0.18 2.7
pp/ppbar → bb 110 +1.5 110 +46 150
14 -1.0 13 +4.0 17
1.7 -2.6 1.7 -0.30 1.7
pp/ppbar → Elastic 20 -0.0011 20 +1.4 21
17 0 17 0 17
14 -0.39 14 +0.0048 14
pp/ppbar → Jets 370 +36 360 +210 390
130 0 130 +60 190
0.00017 -49 0.00055 -1.8 0.00020
pp/ppbar → Soft QCD (inelastic) 160 +3.6 150 +82 240
4.9 -0.20 4.7 +0.80 5.5
0.000024 -13 0.0020 -3.8 0.0035
pp/ppbar → Soft QCD (nsd only) 14 +0.61 14 +0.50 14
2.7 0 2.7 0 2.7
0.044 -0.86 0.060 -0.42 0.046
pp/ppbar → Total σ 2.0 0 2.0 +0.00099 2.0
2.0 0 2.0 0 2.0
2.0 0 2.0 +0.00099 2.0
pp/ppbar → Top (t-channel) 2.6 +0.085 2.7 +0.14 2.7
1.0 0 1.0 0 1.0
0.078 -0.20 0.12 -0.23 0.10
pp/ppbar → Top (all) 0.68 1.2 -0.25 1.6
0.68 +0.52 1.2 -0.41 0.79
0.68 1.2 -0.25 0.45
pp/ppbar → Top (parton level)
? ? ?
pp/ppbar → Top (tt) 74 +13 67 +46 110
5.0 -0.20 4.8 +1.8 6.6
0.0034 -10 0.0020 -1.3 0.0039
pp/ppbar → Underlying Event 19 +6.0 20 +5.2 21
1.8 +0.20 2.0 -0.10 1.9
0.073 -4.0 0.075 -9.1 0.073
pp/ppbar → W+Jet 6.1 +2.1 7.1 +1.1 8.2
3.1 +0.60 3.7 +0.100 3.8
1.0 -0.56 1.5 -0.35 1.0
pp/ppbar → W 9.9 +5.2 24 +2.8 23
3.0 +1.9 4.9 -0.60 4.3
0.73 -1.6 0.056 -3.9 0.17
pp/ppbar → WW 53 +2.3 53 +1.2 53
20 0 20 0 20
0.090 -1.2 0.10 -0.20 0.10
pp/ppbar → Z+Jet 360 +43 360 +300 470
140 -10 130 +60 190
0.24 -49 0.29 -1.2 0.34
pp/ppbar → Z (Drell-Yan) 40 +11 39 +29 250
9.4 -0.50 8.9 +2.1 11
0.18 -5.2 0.064 -0.70 0.064

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 13294 histograms.