Generator / tune

Details for Pythia 8.315 stringzold-off

pp/ppbar → Top (tt)


Observable Reference Energy χ2+5%
Asymmetry
AC vs Mttbar
CMS_2016_I1430892 8000 4.0
Asymmetry
AC vs pTttbar
CMS_2016_I1430892 8000 61
Asymmetry
AC vs yttbar
CMS_2016_I1430892 8000 17
Asymmetry
ACl vs Mttbar
CMS_2016_I1430892 8000 6.7
Asymmetry
ACl vs pTttbar
CMS_2016_I1430892 8000 12
Asymmetry
ACl vs yttbar
CMS_2016_I1430892 8000 10
Asymmetry
Energy asymmetry
ATLAS_2021_I1941095 13000 1.8
B jet
η
CMS_2018_I1703993 13000 27
B jet
pT
CMS_2018_I1703993 13000 32
bjbj.m
CMS_2018_I1703993 13000 37
bjbj.pt
CMS_2018_I1703993 13000 34
bjt.dphi
ATLAS_2022_I2037744 13000 0.64
ej.pt
ATLAS_2022_I2037744 13000 2.6*
pT ratio
Extra jets
ATLAS_2020_I1801434 13000 2.5
pT ratio
Extra to leading jet
ATLAS_2020_I1801434 13000 2.3
pT ratio
Extra jet to Top
ATLAS_2020_I1801434 13000 2.2
ΔR(extra jets)
ATLAS_2020_I1801434 13000 2.1
ejej.dphi
ATLAS_2022_I2037744 13000 1.1
ejets.ht
CMS_2021_I1901295 13000 12
ΔR(extra, leading jet)
ATLAS_2020_I1801434 13000 2.2
ΔR(top, extra jet)
ATLAS_2020_I1801434 13000 2.3
Jets + Veto
Gap frac. vs Veto scale
ATLAS_2012_I1094568 7000 0.18
Jets + Veto
Gap frac. vs scalar veto scale
ATLAS_2012_I1094568 7000 0.072
Jet mass
Jet mass
CMS_2017_I1518399 8000 11
CMS_2019_I1764472 13000 0.17
Jet pT
ATLAS_2014_I1304688 7000 7.5
ATLAS_2019_I1718132 13000 19*
Dijet
Δη
ATLAS_2019_I1718132 13000 23
Dijet
Δφ
ATLAS_2019_I1718132 13000 27
Dijet
HT
ATLAS_2019_I1718132 13000 14
Jet mass
Dijet mass
ATLAS_2019_I1718132 13000 24
Jet Shapes
Differential Jet Shape
ATLAS_2013_I1243871 7000 2.1
Jet Shapes
Integral Jet Shape
ATLAS_2013_I1243871 7000 0.34
Identified Particles
E(KS0)
ATLAS_2019_I1746286 7000 1.9
Identified Particles
η(KS0)
ATLAS_2019_I1746286 7000 1.3
Identified Particles
pT(KS0)
ATLAS_2019_I1746286 7000 1.8
Identified Particles
E(KS0) to E(jet) ratio
ATLAS_2019_I1746286 7000 2.9
Lepton η
ATLAS_2019_I1759875 13000 21
CMS_2018_I1703993 13000 16
Lepton pT
ATLAS_2019_I1759875 13000 27
CMS_2018_I1703993 13000 31
CMS_2021_I1901295 13000 7.4
Identified Particles
E(Λ0)
ATLAS_2019_I1746286 7000 5.2
Identified Particles
η(Λ0)
ATLAS_2019_I1746286 7000 0.71
Identified Particles
pT0)
ATLAS_2019_I1746286 7000 5.5
Δφ(lepton,jet)
ATLAS_2019_I1718132 13000 26
Dilepton
E
ATLAS_2019_I1759875 13000 24
Dilepton
Δη
CMS_2016_I1430892 8000 0.42
CMS_2018_I1703993 13000 22
Dilepton
Δφ
ATLAS_2019_I1718132 13000 30
ATLAS_2019_I1759875 13000 16
CMS_2018_I1703993 13000 29
Dilepton
HT
ATLAS_2019_I1759875 13000 23
Dilepton
m
ATLAS_2019_I1759875 13000 23
CMS_2018_I1703993 13000 31
Dilepton
pT
ATLAS_2019_I1718132 13000 20
ATLAS_2019_I1759875 13000 22
CMS_2018_I1703993 13000 25
Dilepton
y
ATLAS_2019_I1759875 13000 16
ST(leptons, jets)
ATLAS_2019_I1718132 13000 n/a
nch
ATLAS_2022_I2152933 13000 1.3
Jet Multiplicities
Extra jets multiplicity
ATLAS_2019_I1750330 13000 n/a
ATLAS_2022_I2037744 13000 n/a
CMS_2021_I1901295 13000 16
Jet Multiplicities
Jet multiplicity
ATLAS_2014_I1304688 7000 n/a
ATLAS_2020_I1801434 13000 3.1
CMS_2018_I1703993 13000 23
sumpt
ATLAS_2022_I2152933 13000 1.9
Jet Multiplicities
Subjet multiplicity
ATLAS_2019_I1750330 13000 n/a
Pouttop
ATLAS_2019_I1750330 13000 5.0
ATLAS_2020_I1801434 13000 2.5
ATLAS_2022_I2077575 13000 2.7
Top pT
ATLAS_2019_I1750330 13000 4.1*
ATLAS_2020_I1801434 13000 2.3
ATLAS_2022_I2037744 13000 1.2
ATLAS_2022_I2077575 13000 2.3*
CMS_2018_I1703993 13000 41
CMS_2021_I1901295 13000 14*
top.pt.ttbarRF
CMS_2018_I1703993 13000 41
pT ratio
Top quarks
ATLAS_2020_I1801434 13000 2.8
Top rapidity
ATLAS_2019_I1750330 13000 4.7
ATLAS_2020_I1801434 13000 3.1
ATLAS_2022_I2037744 13000 1.5
ATLAS_2022_I2077575 13000 2.9*
CMS_2018_I1703993 13000 34
CMS_2021_I1901295 13000 13
topej.dphi
ATLAS_2022_I2037744 13000 2.1*
topej.m
ATLAS_2022_I2037744 13000 1.2
χ(ttbar)
ATLAS_2019_I1750330 13000 5.2
ATLAS_2020_I1801434 13000 3.4
ATLAS_2022_I2077575 13000 3.7*
Δφ(ttbar)
ATLAS_2019_I1750330 13000 5.1
ATLAS_2020_I1801434 13000 2.8
ATLAS_2022_I2037744 13000 1.1
ATLAS_2022_I2077575 13000 3.0
CMS_2018_I1703993 13000 60
CMS_2021_I1901295 13000 22
Δy (ttbar)
CMS_2016_I1430892 8000 0.15
CMS_2018_I1703993 13000 35
CMS_2021_I1901295 13000 13
ttbar HT
ATLAS_2019_I1750330 13000 4.0
ATLAS_2020_I1801434 13000 2.2
ATLAS_2022_I2037744 13000 n/a
ATLAS_2022_I2077575 13000 3.8*
CMS_2021_I1901295 13000 13
m(ttbar)
ATLAS_2019_I1750330 13000 3.5*
ATLAS_2020_I1801434 13000 2.9
ATLAS_2022_I2037744 13000 1.2
ATLAS_2022_I2077575 13000 2.4*
CMS_2018_I1703993 13000 40
CMS_2021_I1901295 13000 18
Pcrossttbar
ATLAS_2020_I1801434 13000 2.3
ttbar pT
ATLAS_2019_I1750330 13000 4.4
ATLAS_2020_I1801434 13000 2.7
ATLAS_2022_I2037744 13000 0.70
ATLAS_2022_I2077575 13000 2.1*
CMS_2018_I1703993 13000 36
CMS_2021_I1901295 13000 12
pT ratio
ttbar to extra jet
ATLAS_2020_I1801434 13000 3.8
ttbar.thetaStar
ATLAS_2022_I2077575 13000 3.9
CMS_2021_I1901295 13000 19
Ttbar rapidity
ATLAS_2019_I1750330 13000 4.5
ATLAS_2020_I1801434 13000 2.1*
ATLAS_2022_I2037744 13000 1.3
ATLAS_2022_I2077575 13000 4.4*
CMS_2018_I1703993 13000 34
CMS_2021_I1901295 13000 17
Mean rapidity
ATLAS_2019_I1750330 13000 6.6
ATLAS_2020_I1801434 13000 2.4
ATLAS_2022_I2077575 13000 3.1
ttbarej.ht
ATLAS_2022_I2037744 13000 0.56
ttbarej.m
CMS_2021_I1901295 13000 n/a
pT ratio
W to b
ATLAS_2020_I1801434 13000 2.6
pT ratio
W to top
ATLAS_2020_I1801434 13000 2.9
Cross sections
ATLAS_2022_I2037744 13000 1.2
ATLAS_2022_I2077575 13000 16
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.