Generator

pythia8 8.303 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) 56
2.6
0.00082
PbPb → Heavy Ion : minbias 180,000
8,700
3.4
pp/ppbar → 4-lepton 120 +0.19 120 +0.60 120
23 0 23 0 23
2.8 -0.41 2.7 -0.18 2.8
pp/ppbar → bb 7,300 +340 7,600 +110 7,300
1,400 0 1,400 0 1,600
1.7 -62 1.7 -280 1.7
pp/ppbar → Elastic 35 +0.85 36 +0.76 37
35 0 35 0 35
34 0 34 0 34
pp/ppbar → Heavy Ion : minbias 2.0
1.5
0.91
pp/ppbar → Jets 92 +2,400 2,400 +670 840
2.5 +1.4 3.9 0 3.9
0.00020 -90 0.00026 -1,600 0.00035
pp/ppbar → Soft QCD (inelastic) 560 +19 390 +68 460
14 -1.0 13 0 13
0.062 -170 0.029 -36 0.037
pp/ppbar → Soft QCD (nsd only) 280 +14 300 +6.6 280
24 0 24 -1.0 23
0.081 -9.5 0.12 -23 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) 4.6 +0.50 4.2 +0.20 4.3
1.6 0 1.6 0 1.6
0.14 -0.32 0.11 -0.31 0.084
pp/ppbar → Top (all) 0.22
0.22
0.22
pp/ppbar → Top (parton level)
pp/ppbar → Top (tt) 91 +17 96 +16 97
6.5 +0.50 7.0 0 7.0
0.0068 -6.4 0.0032 -15 0.0036
pp/ppbar → Underlying Event 26 +1.0 83 +1.3 16
1.9 +1.2 3.1 -1.5 1.6
0.075 -5.9 0.084 -2.4 0.082
pp/ppbar → W+Jet 120 +11 110 +12 120
29 +4.0 33 -7.0 26
4.2 -29 4.9 -8.9 3.3
pp/ppbar → W 27 +4.8 14 +19 33
4.9 -0.30 4.6 +1.3 5.9
0.73 -13 0.23 -4.4 0.084
pp/ppbar → WW 33 +2.1 35 +0.97 32
18 0 18 -1.0 17
0.48 -1.0 0.63 -6.5 0.13
pp/ppbar → Z+Jet 300 +79 290 +50 330
8.2 -0.20 8.0 +0.40 8.4
0.054 -28 0.029 -92 0.058
pp/ppbar → Z (Drell-Yan) 150,000,000 +40,000,000 190,000,000 +67,000,000 250,000,000
620,000 300,000 920,000 280,000 1,200,000
0.13 -11 0.093 -6.1 0.23
ppPbPb → Heavy Ion : minbias 6.1
5.8
5.4

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 12672 histograms.