Generator / tune

Pythia 8 (A2M) 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 +0.86 120 +0.64 120
21 +1.0 22 0 22
2.2 -0.27 2.7 -0.26 3.0
pp/ppbar → bb 28 +3.0 19 +2.6 110
6.9 -1.8 5.1 +8.9 14
0.37 -0.51 0.39 -0.033 0.37
pp/ppbar → Elastic 19 +0.035 19 +2.0 21
16 0 16 +1.0 17
14 0 14 +0.0090 14
pp/ppbar → Jets 300 +71 320 +230 380
86 -1.0 85 +85 170
0.00048 -68 0.00032 -4.0 0.00059
pp/ppbar → Soft QCD (inelastic) 150 +18 120 +120 240
5.1 +0.20 5.3 +1.1 6.4
0.0035 -23 0.0035 -3.7 0.0035
pp/ppbar → Soft QCD (nsd only) 17 +5.0 16 +3.0 17
3.0 +0.10 3.1 +0.20 3.3
0.051 -1.2 0.050 -0.88 0.043
pp/ppbar → Total σ 2.0 0 2.0 +0.0024 2.0
2.0 0 2.0 0 2.0
2.0 0 2.0 +0.0024 2.0
pp/ppbar → Top (t-channel) 2.6 +0.52 2.7 +0.12 2.6
0.72 +0.070 0.79 -0.010 0.78
0.081 -0.16 0.055 -0.44 0.055