Generator / tune

Details for Pythia 8.308 CP5

pp/ppbar → Top (tt)


Observable Reference Energy χ2+5%
Asymmetry
AC vs Mttbar
CMS_2016_I1430892 8000 3.5
Asymmetry
AC vs pTttbar
CMS_2016_I1430892 8000 6.6
Asymmetry
AC vs yttbar
CMS_2016_I1430892 8000 1.9
Asymmetry
ACl vs Mttbar
CMS_2016_I1430892 8000 5.7
Asymmetry
ACl vs pTttbar
CMS_2016_I1430892 8000 2.5
Asymmetry
ACl vs yttbar
CMS_2016_I1430892 8000 2.7
Asymmetry
Energy asymmetry
ATLAS_2021_I1941095 13000 n/a
B jet
η
CMS_2018_I1703993 13000 32
B jet
pT
CMS_2018_I1703993 13000 36
bjbj.m
CMS_2018_I1703993 13000 50
bjbj.pt
CMS_2018_I1703993 13000 40
bjt.dphi
ATLAS_2022_I2037744 13000 2.1
ej.pt
ATLAS_2022_I2037744 13000 3.0*
pT ratio
Extra jets
ATLAS_2020_I1801434 13000 4.9
pT ratio
Extra to leading jet
ATLAS_2020_I1801434 13000 5.0
pT ratio
Extra jet to Top
ATLAS_2020_I1801434 13000 5.1
ΔR(extra jets)
ATLAS_2020_I1801434 13000 4.0
ejej.dphi
ATLAS_2022_I2037744 13000 2.0
ejets.ht
CMS_2021_I1901295 13000 32
ΔR(extra, leading jet)
ATLAS_2020_I1801434 13000 4.4
ΔR(top, extra jet)
ATLAS_2020_I1801434 13000 4.4
Jets + Veto
Gap frac. vs Veto scale
ATLAS_2012_I1094568 7000 0.030
Jets + Veto
Gap frac. vs scalar veto scale
ATLAS_2012_I1094568 7000 0.037
Jet mass
Jet mass
CMS_2017_I1518399 8000 7.8
CMS_2019_I1764472 13000 0.93
Jet pT
ATLAS_2014_I1304688 7000 15
ATLAS_2019_I1718132 13000 14*
Dijet
Δη
ATLAS_2019_I1718132 13000 16
Dijet
Δφ
ATLAS_2019_I1718132 13000 22
Dijet
HT
ATLAS_2019_I1718132 13000 n/a
Jet mass
Dijet mass
ATLAS_2019_I1718132 13000 23
Jet Shapes
Differential Jet Shape
ATLAS_2013_I1243871 7000 1.4
Jet Shapes
Integral Jet Shape
ATLAS_2013_I1243871 7000 0.20
Identified Particles
E(KS0)
ATLAS_2019_I1746286 7000 1.5
Identified Particles
η(KS0)
ATLAS_2019_I1746286 7000 0.67
Identified Particles
pT(KS0)
ATLAS_2019_I1746286 7000 1.5
Identified Particles
E(KS0) to E(jet) ratio
ATLAS_2019_I1746286 7000 2.2
Lepton η
ATLAS_2019_I1759875 13000 28
CMS_2018_I1703993 13000 20
Lepton pT
ATLAS_2019_I1759875 13000 38
CMS_2018_I1703993 13000 37
CMS_2021_I1901295 13000 11
Identified Particles
E(Λ0)
ATLAS_2019_I1746286 7000 3.9
Identified Particles
η(Λ0)
ATLAS_2019_I1746286 7000 0.67
Identified Particles
pT0)
ATLAS_2019_I1746286 7000 4.2
Δφ(lepton,jet)
ATLAS_2019_I1718132 13000 24*
Dilepton
E
ATLAS_2019_I1759875 13000 31
Dilepton
Δη
CMS_2016_I1430892 8000 1.2
CMS_2018_I1703993 13000 27
Dilepton
Δφ
ATLAS_2019_I1718132 13000 15
ATLAS_2019_I1759875 13000 21
CMS_2018_I1703993 13000 38
Dilepton
HT
ATLAS_2019_I1759875 13000 32
Dilepton
m
ATLAS_2019_I1759875 13000 29
CMS_2018_I1703993 13000 34
Dilepton
pT
ATLAS_2019_I1718132 13000 15
ATLAS_2019_I1759875 13000 32
CMS_2018_I1703993 13000 32
Dilepton
y
ATLAS_2019_I1759875 13000 22
ST(leptons, jets)
ATLAS_2019_I1718132 13000 n/a
nch
ATLAS_2022_I2152933 13000 3.4
Jet Multiplicities
Extra jets multiplicity
ATLAS_2019_I1750330 13000 n/a
ATLAS_2022_I2037744 13000 n/a
CMS_2021_I1901295 13000 45
Jet Multiplicities
Jet multiplicity
ATLAS_2014_I1304688 7000 n/a
ATLAS_2020_I1801434 13000 5.9
CMS_2018_I1703993 13000 29
sumpt
ATLAS_2022_I2152933 13000 5.8
Jet Multiplicities
Subjet multiplicity
ATLAS_2019_I1750330 13000 n/a
Pouttop
ATLAS_2019_I1750330 13000 7.5
ATLAS_2020_I1801434 13000 3.6
ATLAS_2022_I2077575 13000 2.1
Top pT
ATLAS_2019_I1750330 13000 7.3*
ATLAS_2020_I1801434 13000 3.8
ATLAS_2022_I2037744 13000 4.5*
ATLAS_2022_I2077575 13000 1.7*
CMS_2018_I1703993 13000 56
CMS_2021_I1901295 13000 22*
top.pt.ttbarRF
CMS_2018_I1703993 13000 54
pT ratio
Top quarks
ATLAS_2020_I1801434 13000 5.3
Top rapidity
ATLAS_2019_I1750330 13000 7.7
ATLAS_2020_I1801434 13000 5.1
ATLAS_2022_I2037744 13000 2.1*
ATLAS_2022_I2077575 13000 1.8*
CMS_2018_I1703993 13000 51
CMS_2021_I1901295 13000 19
topej.dphi
ATLAS_2022_I2037744 13000 2.2
topej.m
ATLAS_2022_I2037744 13000 1.4
χ(ttbar)
ATLAS_2019_I1750330 13000 7.8
ATLAS_2020_I1801434 13000 4.8
ATLAS_2022_I2077575 13000 2.7*
Δφ(ttbar)
ATLAS_2019_I1750330 13000 9.0
ATLAS_2020_I1801434 13000 4.1
ATLAS_2022_I2037744 13000 n/a
ATLAS_2022_I2077575 13000 2.0
CMS_2018_I1703993 13000 88
CMS_2021_I1901295 13000 35
Δy (ttbar)
CMS_2016_I1430892 8000 0.98
CMS_2018_I1703993 13000 57
CMS_2021_I1901295 13000 18
ttbar HT
ATLAS_2019_I1750330 13000 6.4
ATLAS_2020_I1801434 13000 3.8
ATLAS_2022_I2037744 13000 n/a
ATLAS_2022_I2077575 13000 2.2*
CMS_2021_I1901295 13000 19
m(ttbar)
ATLAS_2019_I1750330 13000 5.4*
ATLAS_2020_I1801434 13000 4.6
ATLAS_2022_I2037744 13000 1.5
ATLAS_2022_I2077575 13000 1.6*
CMS_2018_I1703993 13000 56
CMS_2021_I1901295 13000 29*
Pcrossttbar
ATLAS_2020_I1801434 13000 4.2
ttbar pT
ATLAS_2019_I1750330 13000 7.7
ATLAS_2020_I1801434 13000 4.4*
ATLAS_2022_I2037744 13000 2.5
ATLAS_2022_I2077575 13000 1.8*
CMS_2018_I1703993 13000 56
CMS_2021_I1901295 13000 24*
pT ratio
ttbar to extra jet
ATLAS_2020_I1801434 13000 4.7
ttbar.thetaStar
ATLAS_2022_I2077575 13000 2.4
CMS_2021_I1901295 13000 26
Ttbar rapidity
ATLAS_2019_I1750330 13000 7.1
ATLAS_2020_I1801434 13000 4.0
ATLAS_2022_I2037744 13000 3.1
ATLAS_2022_I2077575 13000 2.4*
CMS_2018_I1703993 13000 47
CMS_2021_I1901295 13000 23
Mean rapidity
ATLAS_2019_I1750330 13000 9.1
ATLAS_2020_I1801434 13000 3.9
ATLAS_2022_I2077575 13000 2.5*
ttbarej.ht
ATLAS_2022_I2037744 13000 1.5
ttbarej.m
CMS_2021_I1901295 13000 n/a
pT ratio
W to b
ATLAS_2020_I1801434 13000 4.4
pT ratio
W to top
ATLAS_2020_I1801434 13000 4.7
Cross sections
ATLAS_2022_I2037744 13000 11
ATLAS_2022_I2077575 13000 8.3
CMS_2019_I1753720 13000 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 1112 histograms.