Generator / tune

Pythia 6 (356:C) versions validation

Versions:

2>
incl. 5% "theory uncertainty" on all points
max worst max worst max
6.426 <Δ> 6.427 <Δ> 6.428
min best min best min
ee → ee : γ*/Z (hadronic) 55 +0.69 55 +2.2 220
1.8 0 1.8 +0.60 2.4
0.0000055 -0.98 0.0000079 -1.6 0.000088
pp/ppbar → bb 29 +0.37 29 +6.0 130
8.8 -0.60 8.2 +7.8 16
0.84 -1.7 0.85 -0.86 0.83
pp/ppbar → Elastic 19 +1.6 20 +1.9 22
17 +1.0 18 +1.0 19
15 +0.012 15 +0.0100 15
pp/ppbar → Jets 270 +66 320 +220 380
73 +10 83 +77 160
0.00075 -67 0.00041 -4.8 0.00058
pp/ppbar → Soft QCD (inelastic) 120 +11 94 +140 230
4.4 0 4.4 +1.0 5.4
0.00028 -26 0.00026 -2.5 0.00023
pp/ppbar → Soft QCD (nsd only) 15 +0.63 13 +2.7 16
2.7 -0.20 2.5 +0.30 2.8
0.33 -2.1 0.19 -0.66 0.13
pp/ppbar → Total σ 2.0 -0.0033 2.0 +0.013 2.0
2.0 0 2.0 0 2.0
2.0 -0.0033 2.0 +0.013 2.0
pp/ppbar → Top (parton level)
? ? ?
pp/ppbar → Top (tt) 130 +11 120 +78 160
7.9 -0.60 7.3 +2.7 10
0.0033 -40 0.0084 -6.0 0.0033
pp/ppbar → Underlying Event 17 +2.8 18 +3.7 19
2.1 +0.20 2.3 -0.50 1.8
0.019 -9.0 0.018 -15 0.011
pp/ppbar → W+Jet 6.1 +0.96 6.5 +3.4 8.9
3.4 +0.50 3.9 -0.20 3.7
1.9 -0.45 2.7 -3.3 0.56
pp/ppbar → Z+Jet 330 +67 310 +220 390
92 -8.0 84 +86 170
0.37 -69 0.43 -3.6 0.14
pp/ppbar → Z (Drell-Yan) 36 +1.7 30 +14 40
16 -1.0 15 +2.0 17
0.41 -10 0.44 -1.2 0.45

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 11290 histograms.