Generator

Details for Pythia 8.201 default-CD vs. default-noCR

pp/ppbar → Top (tt)


Observable Reference Energy χ2+5% (default-CD) Δ χ2+5% (default-noCR)
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 0.42 +2.8 3.2
B jet
η
CMS_2018_I1703993 13000 18 -2.0 16
B jet
pT
CMS_2018_I1703993 13000 27 -4.0 23
bjbj.m
CMS_2018_I1703993 13000 26 -5.0 21
bjbj.pt
CMS_2018_I1703993 13000 34 -3.0 31
bjt.dphi
ATLAS_2022_I2037744 13000 7.1 -0.20 6.9
ej.pt
ATLAS_2022_I2037744 13000 8.9 +0.50 9.4
pT ratio
Extra jets
ATLAS_2020_I1801434 13000 1.2 +0.40 1.6
pT ratio
Extra to leading jet
ATLAS_2020_I1801434 13000 1.9 +0.10 2.0
pT ratio
Extra jet to Top
ATLAS_2020_I1801434 13000 2.1 +2.2 4.3
ΔR(extra jets)
ATLAS_2020_I1801434 13000 0.63 -0.010 0.62
ejej.dphi
ATLAS_2022_I2037744 13000 7.0 +0.100 7.1
ejets.ht
CMS_2021_I1901295 13000 30 -3.0 27
ΔR(extra, leading jet)
ATLAS_2020_I1801434 13000 2.5 +1.1 3.6
ΔR(top, extra jet)
ATLAS_2020_I1801434 13000 1.3 +0.100 1.4
Jets + Veto
Gap frac. vs Veto scale
ATLAS_2012_I1094568 7000 3.5 -0.40 3.1
Jets + Veto
Gap frac. vs scalar veto scale
ATLAS_2012_I1094568 7000 2.5 -0.10 2.4
Jet mass
Jet mass
CMS_2017_I1518399 8000 n/a - n/a
CMS_2019_I1764472 13000 1.1 +0.40 1.5
Jet pT
ATLAS_2014_I1304688 7000 7.8 +0.50 8.3
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 2.9 +0.30 3.2
Jet Shapes
Integral Jet Shape
ATLAS_2013_I1243871 7000 0.38 +0.020 0.40
Identified Particles
E(KS0)
ATLAS_2019_I1746286 7000 3.9 +0.10 4.0
Identified Particles
η(KS0)
ATLAS_2019_I1746286 7000 3.1 +0.20 3.3
Identified Particles
pT(KS0)
ATLAS_2019_I1746286 7000 4.1 +0.10 4.2
Identified Particles
E(KS0) to E(jet) ratio
ATLAS_2019_I1746286 7000 5.4 0 5.4
Lepton η
ATLAS_2019_I1759875 13000 14 -2.0 12
CMS_2018_I1703993 13000 11 -2.1 8.9
Lepton pT
ATLAS_2019_I1759875 13000 20 -1.0 19
CMS_2018_I1703993 13000 25 -6.0 19
CMS_2021_I1901295 13000 6.7 +0.40 7.1
Identified Particles
E(Λ0)
ATLAS_2019_I1746286 7000 6.6 -0.60 6.0
Identified Particles
η(Λ0)
ATLAS_2019_I1746286 7000 1.1 +0.70 1.8
Identified Particles
pT0)
ATLAS_2019_I1746286 7000 9.3 -0.10 9.2
Δφ(lepton,jet)
ATLAS_2019_I1718132 13000 n/a - n/a
Dilepton
E
ATLAS_2019_I1759875 13000 16 0 16
Dilepton
Δη
CMS_2016_I1430892 8000 n/a - n/a
CMS_2018_I1703993 13000 15 -2.0 13
Dilepton
Δφ
ATLAS_2019_I1718132 13000 n/a - n/a
ATLAS_2019_I1759875 13000 9.4 -1.4 8.0
CMS_2018_I1703993 13000 17 -3.0 14
Dilepton
HT
ATLAS_2019_I1759875 13000 18 -1.0 17
Dilepton
m
ATLAS_2019_I1759875 13000 14 +1.0 15
CMS_2018_I1703993 13000 21 -3.0 18
Dilepton
pT
ATLAS_2019_I1718132 13000 n/a - n/a
ATLAS_2019_I1759875 13000 18 0 18
CMS_2018_I1703993 13000 21 -3.0 18
Dilepton
y
ATLAS_2019_I1759875 13000 13* -3.9 9.1
ST(leptons, jets)
ATLAS_2019_I1718132 13000 n/a - n/a
nch
ATLAS_2022_I2152933 13000 2.7 +4.4 7.1
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 19 0 19
Jet Multiplicities
Jet multiplicity
ATLAS_2014_I1304688 7000 n/a - n/a
ATLAS_2020_I1801434 13000 3.2 +3.3 6.5
CMS_2018_I1703993 13000 33 +2.0 35
sumpt
ATLAS_2022_I2152933 13000 3.7 +16 20
Jet Multiplicities
Subjet multiplicity
ATLAS_2019_I1750330 13000 n/a - n/a
Pouttop
ATLAS_2019_I1750330 13000 17 -2.0 15
ATLAS_2020_I1801434 13000 3.0 +3.5 6.5
ATLAS_2022_I2077575 13000 7.5 +1.0 8.5
Top pT
ATLAS_2019_I1750330 13000 9.1 +0.50 9.6
ATLAS_2020_I1801434 13000 2.1 +0.90 3.0
ATLAS_2022_I2037744 13000 8.2 +0.80 9.0
ATLAS_2022_I2077575 13000 3.7* +0.100 3.8*
CMS_2018_I1703993 13000 44 -4.0 40
CMS_2021_I1901295 13000 18 -1.0 17
top.pt.ttbarRF
CMS_2018_I1703993 13000 30 -4.0 26
pT ratio
Top quarks
ATLAS_2020_I1801434 13000 1.8 +0.70 2.5
Top rapidity
ATLAS_2019_I1750330 13000 6.0 -0.30 5.7
ATLAS_2020_I1801434 13000 1.5 -0.20 1.3
ATLAS_2022_I2037744 13000 4.1 -0.20 3.9
ATLAS_2022_I2077575 13000 4.8* 0 4.8*
CMS_2018_I1703993 13000 23 -3.0 20
CMS_2021_I1901295 13000 9.9* 0 9.9
topej.dphi
ATLAS_2022_I2037744 13000 8.1 +0.80 8.9
topej.m
ATLAS_2022_I2037744 13000 9.3 +0.70 10
χ(ttbar)
ATLAS_2019_I1750330 13000 6.2 -0.20 6.0
ATLAS_2020_I1801434 13000 0.68 +0.080 0.76
ATLAS_2022_I2077575 13000 4.9 +4.0 8.9*
Δφ(ttbar)
ATLAS_2019_I1750330 13000 9.6 -0.70 8.9
ATLAS_2020_I1801434 13000 4.2 +4.3 8.5
ATLAS_2022_I2037744 13000 19 0 19
ATLAS_2022_I2077575 13000 8.9 +1.0 9.9
CMS_2018_I1703993 13000 64 -3.0 61
CMS_2021_I1901295 13000 20 -1.0 19
Δy (ttbar)
CMS_2016_I1430892 8000 n/a - n/a
CMS_2018_I1703993 13000 25 -4.0 21
CMS_2021_I1901295 13000 7.0 +0.70 7.7
ttbar HT
ATLAS_2019_I1750330 13000 11 -1.0 10
ATLAS_2020_I1801434 13000 0.60 +0.80 1.4
ATLAS_2022_I2037744 13000 6.3 -0.20 6.1
ATLAS_2022_I2077575 13000 5.2 -0.20 5.0
CMS_2021_I1901295 13000 14 0 14
m(ttbar)
ATLAS_2019_I1750330 13000 5.9 +0.40 6.3
ATLAS_2020_I1801434 13000 1.6 +0.50 2.1
ATLAS_2022_I2037744 13000 6.2 +0.70 6.9
ATLAS_2022_I2077575 13000 2.4* 0 2.4*
CMS_2018_I1703993 13000 25 -4.0 21
CMS_2021_I1901295 13000 12 +2.0 14
Pcrossttbar
ATLAS_2020_I1801434 13000 2.4 +0.90 3.3
ttbar pT
ATLAS_2019_I1750330 13000 16 0 16
ATLAS_2020_I1801434 13000 3.5 +2.3 5.8
ATLAS_2022_I2037744 13000 16 +2.0 18
ATLAS_2022_I2077575 13000 4.1 +1.1 5.2*
CMS_2018_I1703993 13000 65 +1.0 66
CMS_2021_I1901295 13000 23 -1.0 22
pT ratio
ttbar to extra jet
ATLAS_2020_I1801434 13000 0.92 +3.5 4.4
ttbar.thetaStar
ATLAS_2022_I2077575 13000 5.8 +0.20 6.0
CMS_2021_I1901295 13000 12 0 12
Ttbar rapidity
ATLAS_2019_I1750330 13000 5.3 +0.20 5.5
ATLAS_2020_I1801434 13000 1.1 +0.40 1.5
ATLAS_2022_I2037744 13000 5.2 0 5.2
ATLAS_2022_I2077575 13000 5.2 +3.5 8.7*
CMS_2018_I1703993 13000 23 -3.0 20
CMS_2021_I1901295 13000 9.0 +1.0 10
Mean rapidity
ATLAS_2019_I1750330 13000 3.5 +0.40 3.9
ATLAS_2020_I1801434 13000 1.8 -0.50 1.3
ATLAS_2022_I2077575 13000 5.2 +3.9 9.1*
ttbarej.ht
ATLAS_2022_I2037744 13000 18 +4.0 22
ttbarej.m
CMS_2021_I1901295 13000 21 -2.0 19
pT ratio
W to b
ATLAS_2020_I1801434 13000 0.88 +0.050 0.93
pT ratio
W to top
ATLAS_2020_I1801434 13000 0.97 -0.31 0.66
Cross sections
ATLAS_2022_I2037744 13000 49 -3.0 46
ATLAS_2022_I2077575 13000 41 -7.0 34
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.