Generator / tune

Pythia 8 (Monash 13) versions validation

Versions:

2>
incl. 5% "theory uncertainty" on all points
max worst max worst max
8.243 <Δ> 8.244 <Δ> 8.301
min best min best min
ee → γ*/Z (hadronic) 220 +0.13 220 +0.27 220
2.2 0 2.2 0 2.2
0.0000081 -0.17 0.0000010 -0.13 0.0000016
pp/ppbar → bb 160 +5.7 170 +0.43 170
28 0 28 0 28
2.6 -0.17 2.6 -4.4 2.6
pp/ppbar → Elastic 21 +0.00020 21 +0.043 21
17 0 17 0 17
14 -0.061 14 -0.00020 14
pp/ppbar → Jets 540 +7.6 550 +0.60 540
7.1 0 7.1 -0.100 7.0
0.000065 -1.7 0.000088 -9.3 0.000098
pp/ppbar → Soft QCD (inelastic) 250 +15 250 +2.9 250
7.4 +0.100 7.5 -0.100 7.4
0.0035 -1.9 0.0035 -16 0.0035
pp/ppbar → Soft QCD (nsd only) 15 +0.49 15 +0.49 15
2.8 0 2.8 -0.100 2.7
0.074 -0.92 0.074 -0.59 0.069
pp/ppbar → Total σ 2.0 +0.000030 2.0 -0.000030 2.0
2.0 0 2.0 0 2.0
2.0 +0.000030 2.0 -0.000030 2.0
pp/ppbar → tt 1.8 +0.069 1.8 +0.020 1.9
0.43 +0.010 0.44 -0.010 0.43
0.011 -0.032 0.011 -0.030 0.012
pp/ppbar → Underlying Event 690 +1.6 690 +3.0 690
27 -1.0 26 0 26
0.082 -0.26 0.086 -1.7 0.086
pp/ppbar → W+Jet 6.1 +1.3 6.4 +0.16 5.9
3.1 +0.40 3.5 0 3.5
1.0 -0.19 1.0 -1.2 1.4
pp/ppbar → W 6.2 +1.1 19 +2.9 14
3.4 +1.4 4.8 -0.30 4.5
1.4 -1.9 1.8 -4.7 1.5
pp/ppbar → Z+Jet 19 +2.8 21 +0.19 19
4.8 +0.20 5.0 -0.30 4.7
1.3 -0.17 1.3 -3.4 1.2
pp/ppbar → Z (Drell-Yan) 11 +0.75 11 +0.38 11
2.2 +0.20 2.4 -0.10 2.3
0.66 -0.076 0.65 -0.57 0.63

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 3920 histograms.