Generator

Details for Pythia 8.243 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 n/a - 0.32
B jet
η
CMS_2018_I1703993 13000 17 +4.0 21
B jet
pT
CMS_2018_I1703993 13000 19 +6.0 25
bjbj.m
CMS_2018_I1703993 13000 29 +9.0 38
bjbj.pt
CMS_2018_I1703993 13000 21 +6.0 27
bjt.dphi
ATLAS_2022_I2037744 13000 0.59 +0.51 1.1
ej.pt
ATLAS_2022_I2037744 13000 2.0* +0.40 2.4*
pT ratio
Extra jets
ATLAS_2020_I1801434 13000 3.7 -0.90 2.8
pT ratio
Extra to leading jet
ATLAS_2020_I1801434 13000 3.2 +0.40 3.6
pT ratio
Extra jet to Top
ATLAS_2020_I1801434 13000 3.4 -0.40 3.0
ΔR(extra jets)
ATLAS_2020_I1801434 13000 3.3 -1.3 2.0
ejej.dphi
ATLAS_2022_I2037744 13000 1.1 - n/a
ejets.ht
CMS_2021_I1901295 13000 11 +3.0 14
ΔR(extra, leading jet)
ATLAS_2020_I1801434 13000 2.3 +0.30 2.6
ΔR(top, extra jet)
ATLAS_2020_I1801434 13000 2.8 -0.50 2.3
Jets + Veto
Gap frac. vs Veto scale
ATLAS_2012_I1094568 7000 0.17 +0.19 0.36
Jets + Veto
Gap frac. vs scalar veto scale
ATLAS_2012_I1094568 7000 0.067 +0.073 0.14
Jet mass
Jet mass
CMS_2017_I1518399 8000 n/a - n/a
CMS_2019_I1764472 13000 0.19 +0.39 0.58
Jet pT
ATLAS_2014_I1304688 7000 7.1 -0.60 6.5
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 2.0 +0.20 2.2
Jet Shapes
Integral Jet Shape
ATLAS_2013_I1243871 7000 0.33 -0.030 0.30
Identified Particles
E(KS0)
ATLAS_2019_I1746286 7000 2.3 -0.20 2.1
Identified Particles
η(KS0)
ATLAS_2019_I1746286 7000 1.4 -0.100 1.3
Identified Particles
pT(KS0)
ATLAS_2019_I1746286 7000 2.2 -0.10 2.1
Identified Particles
E(KS0) to E(jet) ratio
ATLAS_2019_I1746286 7000 2.8 -0.20 2.6
Lepton η
ATLAS_2019_I1759875 13000 12 +3.0 15
CMS_2018_I1703993 13000 11 +3.0 14
Lepton pT
ATLAS_2019_I1759875 13000 17 +4.0 21
CMS_2018_I1703993 13000 22 +2.0 24
CMS_2021_I1901295 13000 6.8 -0.60 6.2
Identified Particles
E(Λ0)
ATLAS_2019_I1746286 7000 4.3 +1.4 5.7
Identified Particles
η(Λ0)
ATLAS_2019_I1746286 7000 0.64 +0.11 0.75
Identified Particles
pT0)
ATLAS_2019_I1746286 7000 5.3 +1.4 6.7
Δφ(lepton,jet)
ATLAS_2019_I1718132 13000 n/a - n/a
Dilepton
E
ATLAS_2019_I1759875 13000 15 +2.0 17
Dilepton
Δη
CMS_2016_I1430892 8000 n/a - n/a
CMS_2018_I1703993 13000 15 +5.0 20
Dilepton
Δφ
ATLAS_2019_I1718132 13000 n/a - n/a
ATLAS_2019_I1759875 13000 11 +2.0 13*
CMS_2018_I1703993 13000 20 +10 30
Dilepton
HT
ATLAS_2019_I1759875 13000 14 +4.0 18
Dilepton
m
ATLAS_2019_I1759875 13000 14 +2.0 16
CMS_2018_I1703993 13000 20 +4.0 24
Dilepton
pT
ATLAS_2019_I1718132 13000 n/a - n/a
ATLAS_2019_I1759875 13000 14 +3.0 17
CMS_2018_I1703993 13000 17 +6.0 23
Dilepton
y
ATLAS_2019_I1759875 13000 11* +3.0 14*
ST(leptons, jets)
ATLAS_2019_I1718132 13000 n/a - n/a
nch
ATLAS_2022_I2152933 13000 1.4 +0.80 2.2
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 +2.0 16
Jet Multiplicities
Jet multiplicity
ATLAS_2014_I1304688 7000 n/a - n/a
ATLAS_2020_I1801434 13000 5.9 -1.4 4.5
CMS_2018_I1703993 13000 15 +4.0 19
sumpt
ATLAS_2022_I2152933 13000 4.2 0 4.2
Jet Multiplicities
Subjet multiplicity
ATLAS_2019_I1750330 13000 n/a - n/a
Pouttop
ATLAS_2019_I1750330 13000 4.3 +0.30 4.6
ATLAS_2020_I1801434 13000 3.7 -0.80 2.9
ATLAS_2022_I2077575 13000 2.2 +0.90 3.1
Top pT
ATLAS_2019_I1750330 13000 4.2* -0.10 4.1*
ATLAS_2020_I1801434 13000 3.6 -0.20 3.4
ATLAS_2022_I2037744 13000 1.6 +2.3 3.9
ATLAS_2022_I2077575 13000 2.0* +0.30 2.3*
CMS_2018_I1703993 13000 27 +2.0 29
CMS_2021_I1901295 13000 12* +1.0 13*
top.pt.ttbarRF
CMS_2018_I1703993 13000 27 +2.0 29
pT ratio
Top quarks
ATLAS_2020_I1801434 13000 4.2 -0.50 3.7
Top rapidity
ATLAS_2019_I1750330 13000 4.5 -0.100 4.4
ATLAS_2020_I1801434 13000 3.9 +0.10 4.0
ATLAS_2022_I2037744 13000 0.98* +0.12 1.1
ATLAS_2022_I2077575 13000 2.3* +0.40 2.7*
CMS_2018_I1703993 13000 22 +5.0 27
CMS_2021_I1901295 13000 11 0 11
topej.dphi
ATLAS_2022_I2037744 13000 2.6 +0.10 2.7*
topej.m
ATLAS_2022_I2037744 13000 1.0 +1.7 2.7
χ(ttbar)
ATLAS_2019_I1750330 13000 4.7 +0.60 5.3
ATLAS_2020_I1801434 13000 3.3 +0.80 4.1
ATLAS_2022_I2077575 13000 4.9* -2.3 2.6
Δφ(ttbar)
ATLAS_2019_I1750330 13000 4.9 +0.40 5.3
ATLAS_2020_I1801434 13000 4.3 -0.50 3.8
ATLAS_2022_I2037744 13000 0.74 -0.22 0.52
ATLAS_2022_I2077575 13000 2.4 +1.4 3.8
CMS_2018_I1703993 13000 40 +1.0 41
CMS_2021_I1901295 13000 19 +1.0 20
Δy (ttbar)
CMS_2016_I1430892 8000 n/a - n/a
CMS_2018_I1703993 13000 23 +3.0 26
CMS_2021_I1901295 13000 11 0 11
ttbar HT
ATLAS_2019_I1750330 13000 3.8 0 3.8
ATLAS_2020_I1801434 13000 2.6 +0.40 3.0
ATLAS_2022_I2037744 13000 3.1 - n/a
ATLAS_2022_I2077575 13000 2.6 +0.10 2.7
CMS_2021_I1901295 13000 11 0 11
m(ttbar)
ATLAS_2019_I1750330 13000 3.6* 0 3.6*
ATLAS_2020_I1801434 13000 3.2 +0.60 3.8
ATLAS_2022_I2037744 13000 2.9 -0.40 2.5
ATLAS_2022_I2077575 13000 2.1* +0.10 2.2*
CMS_2018_I1703993 13000 24 +2.0 26
CMS_2021_I1901295 13000 16 0 16
Pcrossttbar
ATLAS_2020_I1801434 13000 4.7 -1.8 2.9
ttbar pT
ATLAS_2019_I1750330 13000 4.6 +0.20 4.8
ATLAS_2020_I1801434 13000 3.6 -0.80 2.8
ATLAS_2022_I2037744 13000 0.68 +0.42 1.1
ATLAS_2022_I2077575 13000 2.1* +0.60 2.7
CMS_2018_I1703993 13000 25 +3.0 28
CMS_2021_I1901295 13000 13 +2.0 15*
pT ratio
ttbar to extra jet
ATLAS_2020_I1801434 13000 3.1 +0.10 3.2
ttbar.thetaStar
ATLAS_2022_I2077575 13000 2.6 +0.40 3.0
CMS_2021_I1901295 13000 16 +1.0 17
Ttbar rapidity
ATLAS_2019_I1750330 13000 4.3 -0.100 4.2
ATLAS_2020_I1801434 13000 2.8 +0.80 3.6
ATLAS_2022_I2037744 13000 1.6 -0.61 0.99
ATLAS_2022_I2077575 13000 3.2 -0.20 3.0
CMS_2018_I1703993 13000 23 +5.0 28
CMS_2021_I1901295 13000 15 -1.0 14
Mean rapidity
ATLAS_2019_I1750330 13000 5.7 +0.30 6.0
ATLAS_2020_I1801434 13000 3.3 +0.10 3.4
ATLAS_2022_I2077575 13000 2.8 +0.20 3.0
ttbarej.ht
ATLAS_2022_I2037744 13000 1.4 +0.60 2.0
ttbarej.m
CMS_2021_I1901295 13000 13 0 13
pT ratio
W to b
ATLAS_2020_I1801434 13000 3.3 -0.100 3.2
pT ratio
W to top
ATLAS_2020_I1801434 13000 3.9 -0.20 3.7
Cross sections
ATLAS_2022_I2037744 13000 1.2 -0.89 0.31
ATLAS_2022_I2077575 13000 15 +5.0 20
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.