Generator / tune

Pythia 6 (355:M) 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) 53 +3.4 56 +3.1 220
1.8 0 1.8 +0.70 2.5
0.0000063 -1.8 0.00030 -2.6 0.00022
pp/ppbar → bb 29 +2.3 29 +5.7 28
7.7 +0.80 8.5 +1.2 9.7
0.0045 -0.50 0.0030 -0.64 0.0075
pp/ppbar → Elastic 19 +0.20 19 +3.1 22
17 0 17 +2.0 19
15 0 15 +0.022 15
pp/ppbar → Jets 300 +71 310 +210 380
74 +1.0 75 +85 160
0.00045 -73 0.00086 -11 0.00043
pp/ppbar → Soft QCD (inelastic) 120 +3.7 94 +130 220
4.6 -0.100 4.5 +1.2 5.7
0.000090 -25 0.00029 -4.1 0.00025
pp/ppbar → Soft QCD (nsd only) 11 +0.75 11 +3.2 13
2.6 0 2.6 +0.10 2.7
0.43 -1.3 0.34 -0.94 0.32
pp/ppbar → Total σ 2.0 -0.0032 2.0 +0.0051 2.0
2.0 0 2.0 0 2.0
2.0 -0.0032 2.0 +0.0051 2.0
pp/ppbar → Top (parton level)
? ? ?
pp/ppbar → Top (tt) 16 +7.2 12 +17 29
1.6 -0.10 1.5 +0.50 2.0
0.0039 -6.0 0.0025 -4.0 0.0020
pp/ppbar → Underlying Event 20 +6.0 26 +6.4 32
2.1 -0.30 1.8 +0.100 1.9
0.048 -6.0 0.054 -1.5 0.033
pp/ppbar → W+Jet 6.8 +0.83 7.4 +4.1 8.1
3.8 +0.30 4.1 -0.90 3.2
2.2 -0.94 2.9 -2.1 0.70
pp/ppbar → Z+Jet 330 +71 330 +220 390
100 -8.0 92 +78 170
0.38 -69 0.35 -2.8 0.25
pp/ppbar → Z (Drell-Yan) 12 +1.9 13 +3.8 15
5.6 -0.50 5.1 +0.90 6.0
0.37 -1.3 0.39 -0.36 0.38

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 11452 histograms.