Generator

pythia8 8.307 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
2.4
0.00035
PbPb → Heavy Ion : minbias 230,000
13,000
3.1
pp/ppbar → 4-lepton 120 +0.28 120 +0.17 120
23 0 23 0 23
2.9 -0.17 2.9 -0.56 2.5
pp/ppbar → bb 9,800 +5.8 9,300 +2,100 11,000
1,900 0 1,900 +1.0 2,400
1.7 -520 1.8 -0.43 1.7
pp/ppbar → Elastic 37 +0.25 37 +0.091 37
35 0 35 0 35
34 0 34 0 34
pp/ppbar → Heavy Ion : minbias 2.0
1.8
1.6
pp/ppbar → Jets 790 +4,000 4,000 +1,900 1,900
3.8 +3.0 6.8 -3.1 3.7
0.00031 -770 0.00025 -4,000 0.00044
pp/ppbar → Soft QCD (inelastic) 670 +13 690 +10 670
14 0 14 0 14
0.019 -32 0.0054 -18 0.021
pp/ppbar → Soft QCD (nsd only) 280 +33 310 +19 330
24 -1.0 23 0 23
0.093 -35 0.077 -29 0.079
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 +0.35 4.4 +0.42 4.8
1.7 -0.100 1.6 +0.100 1.7
0.11 -0.29 0.092 -0.17 0.16
pp/ppbar → Top (all) 2.8 1.3
2.2 0.86
1.6 0.44
pp/ppbar → Top (parton level)
pp/ppbar → Top (tt) 91 +17 84 +16 99
6.4 +0.30 6.7 -0.10 6.6
0.0035 -9.4 0.010 -14 0.0019
pp/ppbar → Underlying Event 6.7 +2.1 21 +7.7 28
1.5 +0.30 1.8 0 1.8
0.070 -3.8 0.068 -0.97 0.079
pp/ppbar → W+Jet 120 +33 110 +12 95
33 -7.0 26 +4.0 30
4.1 -15 2.0 -17 5.1
pp/ppbar → W 17 +2.4 10 +25 35
4.4 -0.40 4.0 +1.4 5.4
0.40 -6.3 0.31 -1.1 0.24
pp/ppbar → WW 34 +1.2 35 +2.5 35
19 -1.0 18 0 18
0.53 -3.6 0.39 -2.8 0.57
pp/ppbar → Z+Jet 300 +100 350 +120 320
7.6 +0.60 8.2 0 8.2
0.053 -51 0.055 -40 0.12
pp/ppbar → Z (Drell-Yan) 110,000,000 +92,000,000 210,000,000 +17 120,000,000
580,000 270,000 850,000 -190,000 660,000
0.23 -17 0.063 -90,000,000 0.49
ppPbPb → Heavy Ion : minbias 4.6
1.9
0.68

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 12757 histograms.