Generator / tune

Pythia 8 (AU2CT10) versions validation

Versions:

<χ2>
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
pp/ppbar → 4-lepton 120 +0.24 120 +0.74 120
20 0 20 0 20
2.7 -0.44 2.5 -0.41 2.8
pp/ppbar → bb 91 +3.4 94 +54 150
14 +1.0 15 +1.0 16
2.1 -0.32 2.4 -0.27 2.2
pp/ppbar → Elastic 20 +0.25 20 +1.1 21
17 0 17 0 17
14 +0.0011 14 +0.0037 14
pp/ppbar → Jets 360 +22 360 +190 390
130 0 130 +60 190
0.0016 -27 0.0034 -2.6 0.0024
pp/ppbar → Soft QCD (inelastic) 170 +14 180 +61 240
5.3 +0.20 5.5 +0.90 6.4
0.0035 -9.9 0.0035 -2.5 0.0035
pp/ppbar → Soft QCD (nsd only) 15 +2.5 14 +1.2 16
2.5 +0.10 2.6 0 2.6
0.046 -0.71 0.050 -0.50 0.053
pp/ppbar → Total σ 2.0 +0.00029 2.0 +0.00098 2.0
2.0 0 2.0 0 2.0
2.0 +0.00029 2.0 +0.00098 2.0
pp/ppbar → Top (t-channel) 2.5 +0.29 2.5 +0.31 2.7
0.61 +0.060 0.67 +0.010 0.68
0.050 -0.12 0.028 -0.23 0.048
pp/ppbar → Top (all) 1.4
? ? 0.62
0.15
pp/ppbar → Top (parton level)
? ? ?
pp/ppbar → Top (tt) 51 +3.2 46 +37 79
3.6 -0.50 3.1 +1.5 4.6
0.0042 -12 0.0017 -2.6 0.0043
pp/ppbar → Underlying Event 20 +4.6 17 +3.2 20
1.8 -0.30 1.5 +0.40 1.9
0.081 -2.2 0.054 -4.1 0.079
pp/ppbar → W+Jet 9.3 +0.63 9.6 +1.0 10
3.1 +0.90 4.0 -0.80 3.2
0.50 -0.58 1.2 -0.051 0.51
pp/ppbar → W 24 +6.4 21 +15 36
5.1 +0.40 5.5 +0.90 6.4
0.73 -3.3 0.59 -4.0 0.80
pp/ppbar → WW 53 +0.86 53 +2.1 53
20 0 20 0 20
0.12 -1.1 0.11 -0.18 0.10
pp/ppbar → Z+Jet 370 +23 360 +190 390
140 0 140 +50 190
0.25 -48 0.26 -2.1 0.25
pp/ppbar → Z (Drell-Yan) 43 +20 36 +39 75
3.6 -0.10 3.5 +1.5 5.0
0.079 -10 0.058 -1.1 0.047

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 12302 histograms.