Generator / tune

Pythia 8 (A2) versions validation

Versions:

2>
incl. 5% "theory uncertainty" on all points
max worst max worst max
8.306 <Δ> 8.307 <Δ> 8.308
min best min best min
pp/ppbar → 4-lepton 120 +0.96 120 +2.0 120
23 -1.0 22 +1.0 23
6.1 -1.2 5.8 -0.55 6.0
pp/ppbar → bb 28 +2.8 41 +61 100
5.1 +4.7 9.8 +3.2 13
0.20 -0.25 0.22 -0.00074 0.22
pp/ppbar → Elastic 19 -0.011 17 +3.8 21
16 -1.0 15 +2.0 17
14 -1.9 14 +0.020 14
pp/ppbar → Jets 320 +67 320 +230 390
80 -6.0 74 +96 170
0.0014 -67 0.00072 -16 0.0018
pp/ppbar → Soft QCD (inelastic) 80 +12 86 +130 220
4.1 +0.30 4.4 +1.3 5.7
0.0035 -9.3 0.0035 -3.8 0.0035
pp/ppbar → Soft QCD (nsd only) 15 +2.2 15 +2.6 15
2.6 0 2.6 0 2.6
0.033 -1.5 0.028 -0.49 0.026
pp/ppbar → Total σ 2.0 0 2.0 +0.0025 2.0
2.0 0 2.0 0 2.0
2.0 0 2.0 +0.0025 2.0
pp/ppbar → Top (t-channel) 2.5 +0.62 2.7 +0.050 2.5
0.82 +0.10 0.92 -0.090 0.83
0.017 -0.14 0.084 -0.18 0.042