Generator

Details for Pythia 6.424 a vs. ambt1

pp/ppbar → Top (tt)


Observable Reference Energy χ2+5% (a) Δ χ2+5% (ambt1)
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 - 1.1
B jet
η
CMS_2018_I1703993 13000 130 -120 5.8
B jet
pT
CMS_2018_I1703993 13000 170 -160 6.3
bjbj.m
CMS_2018_I1703993 13000 200 -190 5.8
bjbj.pt
CMS_2018_I1703993 13000 170 -160 6.5
bjt.dphi
ATLAS_2022_I2037744 13000 1.5 +0.50 2.0
ej.pt
ATLAS_2022_I2037744 13000 3.3 0 3.3*
pT ratio
Extra jets
ATLAS_2020_I1801434 13000 7.4 -6.6 0.82
pT ratio
Extra to leading jet
ATLAS_2020_I1801434 13000 7.3 -6.2 1.1
pT ratio
Extra jet to Top
ATLAS_2020_I1801434 13000 7.1 -6.1 1.0
ΔR(extra jets)
ATLAS_2020_I1801434 13000 6.0 -5.3 0.69
ejej.dphi
ATLAS_2022_I2037744 13000 0.86 +0.84 1.7
ejets.ht
CMS_2021_I1901295 13000 30 -28 2.2
ΔR(extra, leading jet)
ATLAS_2020_I1801434 13000 6.9 -5.8 1.1
ΔR(top, extra jet)
ATLAS_2020_I1801434 13000 6.2 -5.0 1.2
Jets + Veto
Gap frac. vs Veto scale
ATLAS_2012_I1094568 7000 0.11 +0.43 0.54
Jets + Veto
Gap frac. vs scalar veto scale
ATLAS_2012_I1094568 7000 0.059 +0.21 0.27
Jet mass
Jet mass
CMS_2017_I1518399 8000 n/a - n/a
CMS_2019_I1764472 13000 2.5 -2.0 0.53
Jet pT
ATLAS_2014_I1304688 7000 29 -24 5.4
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 1.2 +1.7 2.9
Jet Shapes
Integral Jet Shape
ATLAS_2013_I1243871 7000 0.21 +0.28 0.49
Identified Particles
E(KS0)
ATLAS_2019_I1746286 7000 1.2 +1.0 2.2
Identified Particles
η(KS0)
ATLAS_2019_I1746286 7000 0.85 +0.85 1.7
Identified Particles
pT(KS0)
ATLAS_2019_I1746286 7000 1.2 +1.0 2.2
Identified Particles
E(KS0) to E(jet) ratio
ATLAS_2019_I1746286 7000 1.6 +1.7 3.3
Lepton η
ATLAS_2019_I1759875 13000 39 -32 7.0
CMS_2018_I1703993 13000 79 -76 3.1
Lepton pT
ATLAS_2019_I1759875 13000 52 -43 8.9
CMS_2018_I1703993 13000 160 -150 5.2
CMS_2021_I1901295 13000 18 -16 1.8
Identified Particles
E(Λ0)
ATLAS_2019_I1746286 7000 6.3 -1.1 5.2
Identified Particles
η(Λ0)
ATLAS_2019_I1746286 7000 0.47 +0.47 0.94
Identified Particles
pT0)
ATLAS_2019_I1746286 7000 6.6 0 6.6
Δφ(lepton,jet)
ATLAS_2019_I1718132 13000 n/a - n/a
Dilepton
E
ATLAS_2019_I1759875 13000 46 -40 6.5
Dilepton
Δη
CMS_2016_I1430892 8000 n/a - n/a
CMS_2018_I1703993 13000 110 -110 4.0
Dilepton
Δφ
ATLAS_2019_I1718132 13000 n/a - n/a
ATLAS_2019_I1759875 13000 27 -19 7.6*
CMS_2018_I1703993 13000 120 -110 7.5
Dilepton
HT
ATLAS_2019_I1759875 13000 44 -37 7.0
Dilepton
m
ATLAS_2019_I1759875 13000 41 -34 7.3
CMS_2018_I1703993 13000 130 -120 5.6
Dilepton
pT
ATLAS_2019_I1718132 13000 n/a - n/a
ATLAS_2019_I1759875 13000 43 -34 9.2
CMS_2018_I1703993 13000 130 -120 6.1
Dilepton
y
ATLAS_2019_I1759875 13000 36* -30 5.7
ST(leptons, jets)
ATLAS_2019_I1718132 13000 n/a - n/a
nch
ATLAS_2022_I2152933 13000 19 -18 0.90
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 39 -35 4.0
Jet Multiplicities
Jet multiplicity
ATLAS_2014_I1304688 7000 n/a - n/a
ATLAS_2020_I1801434 13000 9.2 -8.0 1.2
CMS_2018_I1703993 13000 140 -130 8.3
sumpt
ATLAS_2022_I2152933 13000 30 -27 2.9
Jet Multiplicities
Subjet multiplicity
ATLAS_2019_I1750330 13000 n/a - n/a
Pouttop
ATLAS_2019_I1750330 13000 9.3 -6.7 2.6
ATLAS_2020_I1801434 13000 7.1* -5.6 1.5
ATLAS_2022_I2077575 13000 1.9 +0.80 2.7
Top pT
ATLAS_2019_I1750330 13000 7.2 -5.5 1.7
ATLAS_2020_I1801434 13000 6.7 -5.2 1.5*
ATLAS_2022_I2037744 13000 2.5* -1.0 1.5
ATLAS_2022_I2077575 13000 1.8* +0.30 2.1*
CMS_2018_I1703993 13000 170 -160 14
CMS_2021_I1901295 13000 34* -29 5.1*
top.pt.ttbarRF
CMS_2018_I1703993 13000 170 -160 11
pT ratio
Top quarks
ATLAS_2020_I1801434 13000 8.4 -6.9 1.5
Top rapidity
ATLAS_2019_I1750330 13000 8.8 -6.5 2.3
ATLAS_2020_I1801434 13000 7.9 -6.0 1.9
ATLAS_2022_I2037744 13000 1.8 +0.90 2.7
ATLAS_2022_I2077575 13000 2.0* +0.50 2.5*
CMS_2018_I1703993 13000 150 -140 8.2
CMS_2021_I1901295 13000 32 -29 3.5
topej.dphi
ATLAS_2022_I2037744 13000 3.2 -0.10 3.1
topej.m
ATLAS_2022_I2037744 13000 1.1 +0.70 1.8
χ(ttbar)
ATLAS_2019_I1750330 13000 10 -7.3 2.7
ATLAS_2020_I1801434 13000 8.3 -6.1 2.2
ATLAS_2022_I2077575 13000 2.3* 0 2.3
Δφ(ttbar)
ATLAS_2019_I1750330 13000 8.8 -7.0 1.8
ATLAS_2020_I1801434 13000 8.1 -6.8 1.3
ATLAS_2022_I2037744 13000 2.6 +0.20 2.8
ATLAS_2022_I2077575 13000 2.4 +0.70 3.1
CMS_2018_I1703993 13000 290 -280 12
CMS_2021_I1901295 13000 48 -44 3.9
Δy (ttbar)
CMS_2016_I1430892 8000 n/a - n/a
CMS_2018_I1703993 13000 160 -150 11
CMS_2021_I1901295 13000 34 -30 4.1
ttbar HT
ATLAS_2019_I1750330 13000 7.1 -5.0 2.1
ATLAS_2020_I1801434 13000 6.9 -6.0 0.95
ATLAS_2022_I2037744 13000 1.6 -0.10 1.5
ATLAS_2022_I2077575 13000 1.5* +3.0 4.5*
CMS_2021_I1901295 13000 n/a - 3.0
m(ttbar)
ATLAS_2019_I1750330 13000 6.1* -4.4 1.7*
ATLAS_2020_I1801434 13000 8.8 -7.7 1.1
ATLAS_2022_I2037744 13000 2.0 -0.70 1.3
ATLAS_2022_I2077575 13000 1.2* +1.2 2.4*
CMS_2018_I1703993 13000 170 -160 15
CMS_2021_I1901295 13000 48* -40 7.6
Pcrossttbar
ATLAS_2020_I1801434 13000 7.5 -6.0 1.5
ttbar pT
ATLAS_2019_I1750330 13000 8.4 -5.5 2.9
ATLAS_2020_I1801434 13000 6.5* -5.4 1.1
ATLAS_2022_I2037744 13000 1.9 +0.70 2.6
ATLAS_2022_I2077575 13000 2.3* 0 2.3*
CMS_2018_I1703993 13000 200 -180 16
CMS_2021_I1901295 13000 30 -26 3.9
pT ratio
ttbar to extra jet
ATLAS_2020_I1801434 13000 9.6 -6.8 2.8
ttbar.thetaStar
ATLAS_2022_I2077575 13000 2.2* +0.70 2.9
CMS_2021_I1901295 13000 46 -39 6.6
Ttbar rapidity
ATLAS_2019_I1750330 13000 8.1 -6.1 2.0
ATLAS_2020_I1801434 13000 5.6 -4.0 1.6*
ATLAS_2022_I2037744 13000 1.4 -0.20 1.2
ATLAS_2022_I2077575 13000 2.2 +1.8 4.0*
CMS_2018_I1703993 13000 130 -120 7.2
CMS_2021_I1901295 13000 41 -36 5.1
Mean rapidity
ATLAS_2019_I1750330 13000 12 -9.4 2.6
ATLAS_2020_I1801434 13000 6.3 -4.6 1.7
ATLAS_2022_I2077575 13000 2.6* +1.3 3.9*
ttbarej.ht
ATLAS_2022_I2037744 13000 3.5 -0.30 3.2
ttbarej.m
CMS_2021_I1901295 13000 36 -34 2.3
pT ratio
W to b
ATLAS_2020_I1801434 13000 7.4 -6.3 1.1
pT ratio
W to top
ATLAS_2020_I1801434 13000 7.2 -5.6 1.6
Cross sections
ATLAS_2022_I2037744 13000 6.8 -0.100 6.7
ATLAS_2022_I2077575 13000 6.8 +11 18
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.