Generator

Details for Pythia 8.210 default-CD vs. default-DL

pp/ppbar → Top (tt)


Observable Reference Energy χ2+5% (default-CD) Δ χ2+5% (default-DL)
Asymmetry
AC vs Mttbar
CMS_2016_I1430892 8000 n/a - n/a
Asymmetry
AC vs pTttbar
CMS_2016_I1430892 8000 n/a - n/a
Asymmetry
AC vs yttbar
CMS_2016_I1430892 8000 n/a - n/a
Asymmetry
ACl vs Mttbar
CMS_2016_I1430892 8000 n/a - n/a
Asymmetry
ACl vs pTttbar
CMS_2016_I1430892 8000 n/a - n/a
Asymmetry
ACl vs yttbar
CMS_2016_I1430892 8000 n/a - n/a
Asymmetry
Energy asymmetry
ATLAS_2021_I1941095 13000 0.70 -0.070 0.63
B jet
η
CMS_2018_I1703993 13000 24 -1.0 23
B jet
pT
CMS_2018_I1703993 13000 27 +1.0 28
bjbj.m
CMS_2018_I1703993 13000 37 +2.0 39
bjbj.pt
CMS_2018_I1703993 13000 28 +2.0 30
bjt.dphi
ATLAS_2022_I2037744 13000 0.98 -0.52 0.46
ej.pt
ATLAS_2022_I2037744 13000 2.5* -0.20 2.3*
pT ratio
Extra jets
ATLAS_2020_I1801434 13000 2.2 +0.40 2.6
pT ratio
Extra to leading jet
ATLAS_2020_I1801434 13000 2.2 0 2.2
pT ratio
Extra jet to Top
ATLAS_2020_I1801434 13000 2.6 -0.40 2.2
ΔR(extra jets)
ATLAS_2020_I1801434 13000 2.0 +1.5 3.5
ejej.dphi
ATLAS_2022_I2037744 13000 0.52 +0.44 0.96
ejets.ht
CMS_2021_I1901295 13000 12 0 12
ΔR(extra, leading jet)
ATLAS_2020_I1801434 13000 2.5 -0.40 2.1
ΔR(top, extra jet)
ATLAS_2020_I1801434 13000 1.8 +0.20 2.0
Jets + Veto
Gap frac. vs Veto scale
ATLAS_2012_I1094568 7000 0.032 +0.21 0.24
Jets + Veto
Gap frac. vs scalar veto scale
ATLAS_2012_I1094568 7000 0.032 +0.053 0.085
Jet mass
Jet mass
CMS_2017_I1518399 8000 n/a - n/a
CMS_2019_I1764472 13000 0.39 -0.070 0.32
Jet pT
ATLAS_2014_I1304688 7000 6.2 +1.0 7.2
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 2.6
Jet Shapes
Integral Jet Shape
ATLAS_2013_I1243871 7000 0.39 -0.020 0.37
Identified Particles
E(KS0)
ATLAS_2019_I1746286 7000 1.8 -0.10 1.7
Identified Particles
η(KS0)
ATLAS_2019_I1746286 7000 0.99 +0.010 1.0
Identified Particles
pT(KS0)
ATLAS_2019_I1746286 7000 1.6 +0.20 1.8
Identified Particles
E(KS0) to E(jet) ratio
ATLAS_2019_I1746286 7000 2.5 +0.10 2.6
Lepton η
ATLAS_2019_I1759875 13000 15 -2.0 13
CMS_2018_I1703993 13000 14 0 14
Lepton pT
ATLAS_2019_I1759875 13000 21 -3.0 18
CMS_2018_I1703993 13000 27 -1.0 26
CMS_2021_I1901295 13000 6.8 +0.10 6.9
Identified Particles
E(Λ0)
ATLAS_2019_I1746286 7000 5.1 0 5.1
Identified Particles
η(Λ0)
ATLAS_2019_I1746286 7000 0.81 +0.080 0.89
Identified Particles
pT0)
ATLAS_2019_I1746286 7000 6.3 +0.50 6.8
Δφ(lepton,jet)
ATLAS_2019_I1718132 13000 n/a - n/a
Dilepton
E
ATLAS_2019_I1759875 13000 17 -2.0 15
Dilepton
Δη
CMS_2016_I1430892 8000 n/a - n/a
CMS_2018_I1703993 13000 19 0 19
Dilepton
Δφ
ATLAS_2019_I1718132 13000 n/a - n/a
ATLAS_2019_I1759875 13000 11 +3.0 14*
CMS_2018_I1703993 13000 28 -2.0 26
Dilepton
HT
ATLAS_2019_I1759875 13000 17 -2.0 15
Dilepton
m
ATLAS_2019_I1759875 13000 17 -1.0 16
CMS_2018_I1703993 13000 24 0 24
Dilepton
pT
ATLAS_2019_I1718132 13000 n/a - n/a
ATLAS_2019_I1759875 13000 18 -2.0 16
CMS_2018_I1703993 13000 23 +1.0 24
Dilepton
y
ATLAS_2019_I1759875 13000 12 -1.0 11
ST(leptons, jets)
ATLAS_2019_I1718132 13000 n/a - n/a
nch
ATLAS_2022_I2152933 13000 1.7 +1.3 3.0
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 14 0 14
Jet Multiplicities
Jet multiplicity
ATLAS_2014_I1304688 7000 n/a - n/a
ATLAS_2020_I1801434 13000 4.4 -1.1 3.3
CMS_2018_I1703993 13000 20 +2.0 22
sumpt
ATLAS_2022_I2152933 13000 1.8 +5.2 7.0
Jet Multiplicities
Subjet multiplicity
ATLAS_2019_I1750330 13000 n/a - n/a
Pouttop
ATLAS_2019_I1750330 13000 4.5 +0.30 4.8
ATLAS_2020_I1801434 13000 4.0 -1.5 2.5
ATLAS_2022_I2077575 13000 3.3 +0.80 4.1*
Top pT
ATLAS_2019_I1750330 13000 3.8* +0.40 4.2*
ATLAS_2020_I1801434 13000 2.8 -0.30 2.5
ATLAS_2022_I2037744 13000 0.48 +1.6 2.1*
ATLAS_2022_I2077575 13000 2.4* -0.30 2.1*
CMS_2018_I1703993 13000 33 +1.0 34
CMS_2021_I1901295 13000 13* -1.0 12*
top.pt.ttbarRF
CMS_2018_I1703993 13000 32 0 32
pT ratio
Top quarks
ATLAS_2020_I1801434 13000 3.9 -0.90 3.0
Top rapidity
ATLAS_2019_I1750330 13000 4.3 -0.100 4.2
ATLAS_2020_I1801434 13000 4.0 0 4.0
ATLAS_2022_I2037744 13000 1.1* -0.22 0.88*
ATLAS_2022_I2077575 13000 2.7* -0.60 2.1*
CMS_2018_I1703993 13000 27 +1.0 28
CMS_2021_I1901295 13000 12 0 12
topej.dphi
ATLAS_2022_I2037744 13000 2.1 0 2.1
topej.m
ATLAS_2022_I2037744 13000 0.90 -0.060 0.84
χ(ttbar)
ATLAS_2019_I1750330 13000 4.6 0 4.6
ATLAS_2020_I1801434 13000 3.9 -0.20 3.7
ATLAS_2022_I2077575 13000 4.9* -1.5 3.4*
Δφ(ttbar)
ATLAS_2019_I1750330 13000 5.1 -0.20 4.9
ATLAS_2020_I1801434 13000 3.8 -0.80 3.0
ATLAS_2022_I2037744 13000 n/a - 0.54
ATLAS_2022_I2077575 13000 3.6 +1.3 4.9*
CMS_2018_I1703993 13000 47 -3.0 44
CMS_2021_I1901295 13000 22 -1.0 21
Δy (ttbar)
CMS_2016_I1430892 8000 n/a - n/a
CMS_2018_I1703993 13000 28 0 28
CMS_2021_I1901295 13000 12 -1.0 11
ttbar HT
ATLAS_2019_I1750330 13000 3.5 +0.30 3.8
ATLAS_2020_I1801434 13000 3.1 -1.0 2.1
ATLAS_2022_I2037744 13000 0.61 +0.27 0.88
ATLAS_2022_I2077575 13000 n/a - 2.9
CMS_2021_I1901295 13000 12 -1.0 11
m(ttbar)
ATLAS_2019_I1750330 13000 2.9 0 2.9
ATLAS_2020_I1801434 13000 2.9 -0.80 2.1
ATLAS_2022_I2037744 13000 n/a - 1.4
ATLAS_2022_I2077575 13000 2.3* -0.60 1.7*
CMS_2018_I1703993 13000 29 -3.0 26
CMS_2021_I1901295 13000 17 -2.0 15
Pcrossttbar
ATLAS_2020_I1801434 13000 3.0 0 3.0
ttbar pT
ATLAS_2019_I1750330 13000 4.4 -0.30 4.1
ATLAS_2020_I1801434 13000 4.0 -1.3 2.7
ATLAS_2022_I2037744 13000 1.9 -1.0 0.87
ATLAS_2022_I2077575 13000 2.4 -0.10 2.3*
CMS_2018_I1703993 13000 30 +1.0 31
CMS_2021_I1901295 13000 13* -3.0 10
pT ratio
ttbar to extra jet
ATLAS_2020_I1801434 13000 2.9 -0.80 2.1
ttbar.thetaStar
ATLAS_2022_I2077575 13000 3.3 +0.40 3.7*
CMS_2021_I1901295 13000 17 0 17
Ttbar rapidity
ATLAS_2019_I1750330 13000 4.0 0 4.0
ATLAS_2020_I1801434 13000 2.2 -0.40 1.8
ATLAS_2022_I2037744 13000 0.59 +0.91 1.5
ATLAS_2022_I2077575 13000 3.0 +0.80 3.8*
CMS_2018_I1703993 13000 27 -1.0 26
CMS_2021_I1901295 13000 15 0 15
Mean rapidity
ATLAS_2019_I1750330 13000 6.0 +0.30 6.3
ATLAS_2020_I1801434 13000 2.9 -0.40 2.5
ATLAS_2022_I2077575 13000 3.0 +0.80 3.8*
ttbarej.ht
ATLAS_2022_I2037744 13000 0.80 -0.20 0.60
ttbarej.m
CMS_2021_I1901295 13000 13 -1.0 12
pT ratio
W to b
ATLAS_2020_I1801434 13000 3.0 +0.10 3.1
pT ratio
W to top
ATLAS_2020_I1801434 13000 3.3 0 3.3
Cross sections
ATLAS_2022_I2037744 13000 0.097 +0.30 0.40
ATLAS_2022_I2077575 13000 21 -8.0 13
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.