Generator / tune

Pythia 6 (Z1) 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) 49 +2.8 52 +3.2 50
4.4 -0.20 4.2 +0.30 4.5
0.038 -2.2 0.010 -1.3 0.012
pp/ppbar → bb 29 +0.69 29 +6.0 140
9.1 -0.20 8.9 +8.1 17
0.69 -3.4 0.68 -0.68 0.68
pp/ppbar → Elastic 19 +1.9 21 +1.9 23
17 +1.0 18 +1.0 19
15 +0.012 15 +0.0098 15
pp/ppbar → Jets 320 +68 320 +220 380
79 -5.0 74 +86 160
0.0012 -76 0.0024 -5.6 0.00100
pp/ppbar → Soft QCD (inelastic) 83 +13 87 +26 170
3.8 -0.40 3.4 +1.4 4.8
0.00026 -5.2 0.00026 -1.7 0.00024
pp/ppbar → Soft QCD (nsd only) 15 +0.51 14 +1.6 15
2.6 0 2.6 +0.10 2.7
0.33 -0.90 0.31 -0.87 0.19
pp/ppbar → Total σ 2.0 -0.0039 2.0 +0.0058 2.0
2.0 0 2.0 0 2.0
2.0 -0.0039 2.0 +0.0058 2.0
pp/ppbar → Top (parton level)
? ? ?
pp/ppbar → Top (tt) 160 +15 160 +62 190
8.4 +0.30 8.7 +2.3 11
0.031 -15 0.019 -4.7 0.018
pp/ppbar → Underlying Event 6.2 +2.3 8.3 +6.8 18
1.5 -0.10 1.4 +1.1 2.5
0.0073 -3.0 0.015 -2.5 0.016
pp/ppbar → W+Jet 6.6 +0.41 5.3 +2.3 10
3.8 +0.10 3.9 +0.60 4.5
1.3 -1.00 2.7 -1.5 1.4
pp/ppbar → Z+Jet 310 +69 330 +220 380
85 +12 97 +73 170
0.43 -64 0.25 -3.6 0.24
pp/ppbar → Z (Drell-Yan) 35 +9.0 38 +14 50
18 0 18 +4.0 22
0.57 -4.1 0.50 -1.3 0.37

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 11423 histograms.