Generator / tune

Pythia 8 (AU2LOX) 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
pp/ppbar → 4-lepton 120 +0.25 120 +1.9 120
22 0 22 0 22
4.0 -1.7 4.0 -0.13 4.0
pp/ppbar → bb 28 +3.0 28 +31 58
8.8 +0.20 9.0 +2.0 11
0.080 -0.37 0.079 -0.061 0.080
pp/ppbar → Elastic 20 0 20 +1.3 21
17 0 17 0 17
14 -0.19 14 +0.0037 14
pp/ppbar → Jets 370 +23 360 +200 390
130 0 130 +60 190
0.0021 -51 0.0013 -1.9 0.0014
pp/ppbar → Soft QCD (inelastic) 170 +10 170 +62 230
5.6 +0.10 5.7 +1.3 7.0
0.00000062 -6.7 0.0035 -3.3 0.0035
pp/ppbar → Soft QCD (nsd only) 14 +2.2 13 +1.5 14
2.7 0 2.7 0 2.7
0.029 -0.66 0.029 -1.2 0.031
pp/ppbar → Total σ 2.0 +0.00029 2.0 +0.00099 2.0
2.0 0 2.0 0 2.0
2.0 +0.00029 2.0 +0.00099 2.0
pp/ppbar → Top (t-channel) 2.7 +0.034 2.4 +0.41 2.7
0.67 -0.080 0.59 +0.070 0.66
0.055 -0.38 0.063 -0.097 0.022
pp/ppbar → Top (all) 0.49 +0.27 1.7
? 0.49 +0.43 0.92
0.49 +0.27 0.21
pp/ppbar → Top (parton level)
? ? ?
pp/ppbar → Top (tt) 9.9 +4.2 11 +8.9 17
1.4 +0.10 1.5 +0.20 1.7
0.00033 -2.4 0.0013 -5.2 0.0052
pp/ppbar → Underlying Event 24 +3.1 22 +9.0 28
2.0 +0.10 2.1 0 2.1
0.091 -2.0 0.083 -9.0 0.066
pp/ppbar → W+Jet 8.7 +0.38 7.8 +1.6 8.9
3.8 -0.70 3.1 +0.20 3.3
0.93 -0.58 0.63 -0.11 0.62
pp/ppbar → W 25 +3.6 33 +2.0 34
5.9 +1.6 7.5 +0.60 8.1
0.21 -3.6 0.30 -2.7 0.23
pp/ppbar → WW 52 +1.3 52 +1.6 53
20 0 20 0 20
0.12 -0.78 0.10 -0.21 0.10
pp/ppbar → Z+Jet 370 +47 370 +160 400
140 0 140 +50 190
0.23 -19 0.21 -1.4 0.23
pp/ppbar → Z (Drell-Yan) 38 +12 38 +35 110
2.9 +0.10 3.0 +1.7 4.7
0.14 -2.9 0.098 -1.6 0.15

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 12349 histograms.