Generator / tune

Pythia 6 (Def) 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) 51 +5.0 52 +3.0 48
4.2 -0.10 4.1 +0.20 4.3
0.000058 -25 0.0015 -5.1 0.0048
pp/ppbar → bb 5,400 -0.0021 10.0 +0.0057 6.7
1,400 -1,400 3.9 -1.4 2.5
0.75 -2.1 0.75 -0.94 0.74
pp/ppbar → Elastic 42 0 40 +3.3 43
40 -1.0 39 +2.0 41
39 -2.4 39 0 39
pp/ppbar → Jets 31 +8.3 36 +8.0 25
2.1 -0.10 2.0 -0.10 1.9
0.00052 -16 0.0031 -9.3 0.00052
pp/ppbar → Soft QCD (inelastic) 320 +61 320 +37 350
20 +1.0 21 -1.0 20
0.028 -11 0.065 -23 0.011
pp/ppbar → Soft QCD (nsd only)
pp/ppbar → Total σ 2.8 -0.0015 2.8 -0.0025 2.8
2.8 0 2.8 0 2.8
2.8 -0.0015 2.8 -0.0025 2.8
pp/ppbar → Top (parton level)
pp/ppbar → Top (tt) 630 +1.4 140 +1.2 640
27 -22 5.5 +22 27
0.011 -2.4 0.0014 -1.2 0.027
pp/ppbar → Underlying Event 61 +5.4 56 +1.2 27
7.7 +0.100 7.8 -2.3 5.5
0.48 -5.2 0.80 -4.6 0.41
pp/ppbar → W+Jet 46
31
19
pp/ppbar → Z+Jet 91 +11 92 +5.3 92
3.1 +0.40 3.5 -0.50 3.0
0.033 -12 0.086 -12 0.012
pp/ppbar → Z (Drell-Yan) 78 +1.5 67 +48 120
22 -4.0 18 +16 34
8.2 -6.0 8.5 -0.36 9.2

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 8125 histograms.