Generator

pythia8 8.170 tunes validation

Tunes:

2>
incl. 5% "theory uncertainty" on all points
max max max
default default-CD default-MBR
min min min
ee → ee : γ*/Z (hadronic) 54
1.5 ? ?
0.000030
pp/ppbar → 4-lepton 120 120
22 22 ?
1.3 1.4
pp/ppbar → bb 35 28 6.9
8.2 6.9 2.9
0.21 0.19 0.18
pp/ppbar → Elastic 18 20 2.4
17 18 2.1
15 15 1.9
pp/ppbar → Jets 320 290 99
93 78 20
0.00039 0.00024 0.0011
pp/ppbar → Soft QCD (inelastic) 120 130 120
4.4 4.2 4.3
0.000061 0.000061 0.0025
pp/ppbar → Soft QCD (nsd only) 15 14 15
2.5 2.5 2.7
0.034 0.038 0.0068
pp/ppbar → Total σ 2.0 2.0 0.0000026
2.0 2.0 0.0000026
2.0 2.0 0.0000026
pp/ppbar → Top (t-channel) 2.4 2.3
0.71 0.77 ?
0.16 0.087
pp/ppbar → Top (all)
? ? ?
pp/ppbar → Top (parton level)
? ? ?
pp/ppbar → Top (tt) 75 56
7.3 5.8 ?
0.0034 0.0091
pp/ppbar → Underlying Event 22 20 21
2.1 1.7 1.8
0.064 0.036 0.067
pp/ppbar → W+Jet 6.2 5.1
3.2 2.9 ?
1.8 1.6
pp/ppbar → W 19 31
4.7 5.6 ?
1.4 0.66
pp/ppbar → WW 50 50
18 20 ?
0.12 0.080
pp/ppbar → Z+Jet 310 310
100 98 ?
0.39 0.46
pp/ppbar → Z (Drell-Yan) 28 31
8.5 7.3 ?
0.50 0.29

Legend: [ χ2 < 1 ] / [ 1 ≤ χ2 < 4 ] / [ 4 ≤ χ2 ].The '?' means the χ2 computation is not yet complete.

(click on number in the table cell to see individual observables)

The page data is based on 8572 histograms.