Generator / tune

Details for Pythia 6.427 z1-lep vs. 6.428

pp/ppbar → Top (tt)


Observable Reference Energy χ2+5% (6.427) Δ χ2+5% (6.428)
Asymmetry
 AC vs Mttbar
 CMS_2016_I1430892 8000 1.9 - n/a
Asymmetry
 AC vs pTttbar
 CMS_2016_I1430892 8000 14 - n/a
Asymmetry
 AC vs yttbar
 CMS_2016_I1430892 8000 3.2 - n/a
Asymmetry
 ACl vs Mttbar
 CMS_2016_I1430892 8000 1.7 - n/a
Asymmetry
 ACl vs pTttbar
 CMS_2016_I1430892 8000 1.7 - n/a
Asymmetry
 ACl vs yttbar
 CMS_2016_I1430892 8000 2.7 - n/a
Asymmetry
 Energy asymmetry
 ATLAS_2021_I1941095 13000 0.96 -0.21 0.75
B jet
 η
 CMS_2018_I1703993 13000 59 -2.0 57
B jet
 pT
 CMS_2018_I1703993 13000 71 -5.0 66
bjbj.m
 CMS_2018_I1703993 13000 87 -7.0 80
bjbj.pt
 CMS_2018_I1703993 13000 75 -4.0 71
bjt.dphi
 ATLAS_2022_I2037744 13000 1.5 +0.50 2.0
ej.pt
 ATLAS_2022_I2037744 13000 3.0 +0.40 3.4
pT ratio
 Extra jets
 ATLAS_2020_I1801434 13000 2.5 -0.40 2.1
pT ratio
 Extra to leading jet
 ATLAS_2020_I1801434 13000 3.8 -0.30 3.5
pT ratio
 Extra jet to Top
 ATLAS_2020_I1801434 13000 3.2 +0.100 3.3
ΔR(extra jets)
 ATLAS_2020_I1801434 13000 2.1 -0.20 1.9
ejej.dphi
 ATLAS_2022_I2037744 13000 0.97 +0.63 1.6
ejets.ht
 CMS_2021_I1901295 13000 12 0 12
ΔR(extra, leading jet)
 ATLAS_2020_I1801434 13000 4.9 -0.60 4.3
ΔR(top, extra jet)
 ATLAS_2020_I1801434 13000 2.6 +0.10 2.7
Jets + Veto
 Gap frac. vs Veto scale
 ATLAS_2012_I1094568 7000 0.88 +0.42 1.3
Jets + Veto
 Gap frac. vs scalar veto scale
 ATLAS_2012_I1094568 7000 0.65 +0.050 0.70
Jet mass
 Jet mass
 CMS_2017_I1518399 8000 5.7 - n/a
CMS_2019_I1764472 13000 0.37 +0.53 0.90
Jet pT
 ATLAS_2014_I1304688 7000 16 0 16
ATLAS_2019_I1718132 13000 n/a - n/a
Dijet
 Δη
 ATLAS_2019_I1718132 13000 n/a - n/a
Dijet
 Δφ
 ATLAS_2019_I1718132 13000 n/a - n/a
Dijet
 HT
 ATLAS_2019_I1718132 13000 n/a - n/a
Jet mass
 Dijet mass
 ATLAS_2019_I1718132 13000 n/a - n/a
Jet Shapes
 Differential Jet Shape
 ATLAS_2013_I1243871 7000 2.6 +0.30 2.9
Jet Shapes
 Integral Jet Shape
 ATLAS_2013_I1243871 7000 0.45 +0.070 0.52
Identified Particles
 E(KS0)
 ATLAS_2019_I1746286 7000 2.1 -0.10 2.0
Identified Particles
 η(KS0)
 ATLAS_2019_I1746286 7000 1.2 +0.10 1.3
Identified Particles
 pT(KS0)
 ATLAS_2019_I1746286 7000 2.5 -0.40 2.1
Identified Particles
 E(KS0) to E(jet) ratio
 ATLAS_2019_I1746286 7000 3.1 -0.30 2.8
Lepton η
 ATLAS_2019_I1759875 13000 41 +3.0 44
CMS_2018_I1703993 13000 38 -5.0 33
Lepton pT
 ATLAS_2019_I1759875 13000 55 +4.0 59
CMS_2018_I1703993 13000 69 -6.0 63
CMS_2021_I1901295 13000 14 0 14
Identified Particles
 E(Λ0)
 ATLAS_2019_I1746286 7000 3.9 +0.40 4.3
Identified Particles
 η(Λ0)
 ATLAS_2019_I1746286 7000 0.69 0 0.69
Identified Particles
 pT(Λ0)
 ATLAS_2019_I1746286 7000 4.7 +0.30 5.0
Δφ(lepton,jet)
 ATLAS_2019_I1718132 13000 n/a - n/a
Dilepton
 E
 ATLAS_2019_I1759875 13000 46 +3.0 49
Dilepton
 Δη
 CMS_2016_I1430892 8000 0.94 - n/a
CMS_2018_I1703993 13000 52 -6.0 46
Dilepton
 Δφ
 ATLAS_2019_I1718132 13000 n/a - n/a
ATLAS_2019_I1759875 13000 28 +2.0 30
CMS_2018_I1703993 13000 62 -6.0 56
Dilepton
 HT
 ATLAS_2019_I1759875 13000 45 +4.0 49
Dilepton
 m
 ATLAS_2019_I1759875 13000 43 +2.0 45
CMS_2018_I1703993 13000 61 -5.0 56
Dilepton
 pT
 ATLAS_2019_I1718132 13000 n/a - n/a
ATLAS_2019_I1759875 13000 45 +5.0 50
CMS_2018_I1703993 13000 58 -5.0 53
Dilepton
 y
 ATLAS_2019_I1759875 13000 33 +2.0 35
ST(leptons, jets)
 ATLAS_2019_I1718132 13000 n/a - n/a
nch
 ATLAS_2022_I2152933 13000 2.8 -1.1 1.7
Jet Multiplicities
 Extra jets multiplicity
 ATLAS_2019_I1750330 13000 n/a - n/a
ATLAS_2022_I2037744 13000 n/a - n/a
CMS_2021_I1901295 13000 22 0 22
Jet Multiplicities
 Jet multiplicity
 ATLAS_2014_I1304688 7000 n/a - n/a
ATLAS_2020_I1801434 13000 7.7 -0.10 7.6
CMS_2018_I1703993 13000 62 -7.0 55
sumpt
 ATLAS_2022_I2152933 13000 2.5 0 2.5
Jet Multiplicities
 Subjet multiplicity
 ATLAS_2019_I1750330 13000 n/a - n/a
Pouttop
 ATLAS_2019_I1750330 13000 8.4 +0.30 8.7
ATLAS_2020_I1801434 13000 5.0 0 5.0
ATLAS_2022_I2077575 13000 1.7 +0.20 1.9*
Top pT
 ATLAS_2019_I1750330 13000 6.2 0 6.2*
ATLAS_2020_I1801434 13000 4.5 -0.20 4.3
ATLAS_2022_I2037744 13000 2.7 -1.5 1.2
ATLAS_2022_I2077575 13000 1.5* +0.20 1.7*
CMS_2018_I1703993 13000 95 -7.0 88
CMS_2021_I1901295 13000 23 0 23
top.pt.ttbarRF
 CMS_2018_I1703993 13000 88 -5.0 83
pT ratio
 Top quarks
 ATLAS_2020_I1801434 13000 5.6 -0.100 5.5
Top rapidity
 ATLAS_2019_I1750330 13000 7.4 +0.60 8.0
ATLAS_2020_I1801434 13000 4.8 0 4.8
ATLAS_2022_I2037744 13000 0.78* -0.12 0.66*
ATLAS_2022_I2077575 13000 1.8* +0.40 2.2*
CMS_2018_I1703993 13000 84 -6.0 78
CMS_2021_I1901295 13000 24 +1.0 25
topej.dphi
 ATLAS_2022_I2037744 13000 2.9 +0.20 3.1
topej.m
 ATLAS_2022_I2037744 13000 0.73 +0.47 1.2
χ(ttbar)
 ATLAS_2019_I1750330 13000 8.7 -0.30 8.4
ATLAS_2020_I1801434 13000 4.9 -0.10 4.8
ATLAS_2022_I2077575 13000 1.7 +0.70 2.4*
Δφ(ttbar)
 ATLAS_2019_I1750330 13000 7.1 -0.100 7.0
ATLAS_2020_I1801434 13000 5.9 +0.70 6.6
ATLAS_2022_I2037744 13000 1.2 +2.4 3.6
ATLAS_2022_I2077575 13000 1.9 +0.20 2.1
CMS_2018_I1703993 13000 120 0 120
CMS_2021_I1901295 13000 30 -1.0 29
Δy (ttbar)
 CMS_2016_I1430892 8000 0.95 - n/a
CMS_2018_I1703993 13000 94 -5.0 89
CMS_2021_I1901295 13000 24 +2.0 26
ttbar HT
 ATLAS_2019_I1750330 13000 6.5 +0.30 6.8
ATLAS_2020_I1801434 13000 4.3 -0.70 3.6
ATLAS_2022_I2037744 13000 n/a - 1.6
ATLAS_2022_I2077575 13000 1.9 +0.40 2.3*
CMS_2021_I1901295 13000 24 0 24
m(ttbar)
 ATLAS_2019_I1750330 13000 4.8 +0.80 5.6*
ATLAS_2020_I1801434 13000 4.3 +0.30 4.6
ATLAS_2022_I2037744 13000 n/a - 1.1
ATLAS_2022_I2077575 13000 1.5* +0.30 1.8*
CMS_2018_I1703993 13000 100 -9.0 91
CMS_2021_I1901295 13000 29 +2.0 31
Pcrossttbar
 ATLAS_2020_I1801434 13000 5.0 0 5.0
ttbar pT
 ATLAS_2019_I1750330 13000 7.4 +0.50 7.9
ATLAS_2020_I1801434 13000 5.4 -0.50 4.9
ATLAS_2022_I2037744 13000 1.7 +2.9 4.6
ATLAS_2022_I2077575 13000 2.0* -0.50 1.5*
CMS_2018_I1703993 13000 83 0 83
CMS_2021_I1901295 13000 18 0 18
pT ratio
 ttbar to extra jet
 ATLAS_2020_I1801434 13000 7.0 -2.4 4.6
ttbar.thetaStar
 ATLAS_2022_I2077575 13000 1.6 +1.8 3.4*
CMS_2021_I1901295 13000 32 +1.0 33
Ttbar rapidity
 ATLAS_2019_I1750330 13000 7.2 +0.100 7.3
ATLAS_2020_I1801434 13000 3.7 -0.60 3.1
ATLAS_2022_I2037744 13000 0.81 +0.11 0.92
ATLAS_2022_I2077575 13000 1.9 +0.30 2.2
CMS_2018_I1703993 13000 76 -4.0 72
CMS_2021_I1901295 13000 29 0 29
Mean rapidity
 ATLAS_2019_I1750330 13000 10 0 10
ATLAS_2020_I1801434 13000 4.7 -1.0 3.7
ATLAS_2022_I2077575 13000 2.1 +0.30 2.4
ttbarej.ht
 ATLAS_2022_I2037744 13000 6.1 -1.6 4.5
ttbarej.m
 CMS_2021_I1901295 13000 20 0 20
pT ratio
 W to b
 ATLAS_2020_I1801434 13000 4.9 -0.60 4.3
pT ratio
 W to top
 ATLAS_2020_I1801434 13000 5.0 +0.40 5.4
Cross sections
 ATLAS_2022_I2037744 13000 0.92 -0.28 0.64
ATLAS_2022_I2077575 13000 8.7 -1.8 6.9
CMS_2019_I1753720 13000 n/a - n/a

* several "n/a" histograms were excluded from the calculation



n/a indicates that the χ2 value is unavailable, typically due to mismatched binning between theoretical and MC histograms or other issues.



The page data is based on 2224 histograms.