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) 50 +5.3 53 +2.4 50
6.6 -0.30 6.3 0 6.3
0.15 -13 0.18 -5.2 0.17
pp/ppbar → bb 8.5 -0.013 9,400 +1.3 11
2.9 2,400 2,400 -2,400 4.0
0.71 -1.7 0.69 -0.069 0.67
pp/ppbar → Elastic 42 0 41 0 41
40 0 40 0 40
39 -0.80 39 -0.37 39
pp/ppbar → Jets 24 +17 140 +5.9 27
2.3 +0.20 2.5 -0.80 1.7
0.0022 -11 0.0047 -20 0.00033
pp/ppbar → Soft QCD (inelastic) 140 +12 130 +3.0 130
8.4 +0.100 8.5 -0.20 8.3
0.018 -9.0 0.013 -16 0.011
pp/ppbar → Soft QCD (nsd only) 15 190
4.8 +22 27
1.2 0.37
pp/ppbar → Total σ 2.8 -0.010 2.8 -0.0050 2.8
2.8 0 2.8 0 2.8
2.8 -0.010 2.8 -0.0050 2.8
pp/ppbar → Top (parton level)
pp/ppbar → Top (tt) 280 +37 260 +33 280
14 +1.0 15 -1.0 14
0.00049 -17 0.00013 -27 0.038
pp/ppbar → Underlying Event 44 +2.5 8.8 +2.9 7.1
2.3 -0.60 1.7 0 1.7
0.0067 -1.2 0.034 -5.0 0.019
pp/ppbar → W+Jet 37
30
23
pp/ppbar → Z+Jet 120 +10 290 +20 94
3.9 +2.9 6.8 -4.1 2.7
0.16 -13 0.19 -17 0.086
pp/ppbar → Z (Drell-Yan) 57 +7.1 220 +12 62
15 +18 33 -19 14
0.52 -7.1 0.80 -0.85 0.66

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 9154 histograms.