Generator

Details for Pythia 8.186 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 - 1.7
B jet
 η
 CMS_2018_I1703993 13000 23 -2.0 21
B jet
 pT
 CMS_2018_I1703993 13000 30 -2.0 28
bjbj.m
 CMS_2018_I1703993 13000 33 -2.0 31
bjbj.pt
 CMS_2018_I1703993 13000 36 -4.0 32
bjt.dphi
 ATLAS_2022_I2037744 13000 4.0 0 4.0
ej.pt
 ATLAS_2022_I2037744 13000 7.2 -0.50 6.7
pT ratio
 Extra jets
 ATLAS_2020_I1801434 13000 0.90 -0.060 0.84
pT ratio
 Extra to leading jet
 ATLAS_2020_I1801434 13000 2.7 -1.3 1.4
pT ratio
 Extra jet to Top
 ATLAS_2020_I1801434 13000 3.2 -1.1 2.1
ΔR(extra jets)
 ATLAS_2020_I1801434 13000 0.88 -0.25 0.63
ejej.dphi
 ATLAS_2022_I2037744 13000 4.1 +0.20 4.3
ejets.ht
 CMS_2021_I1901295 13000 21 -1.0 20
ΔR(extra, leading jet)
 ATLAS_2020_I1801434 13000 3.9 -2.0 1.9
ΔR(top, extra jet)
 ATLAS_2020_I1801434 13000 1.0 -0.36 0.64
Jets + Veto
 Gap frac. vs Veto scale
 ATLAS_2012_I1094568 7000 2.0 +0.50 2.5
Jets + Veto
 Gap frac. vs scalar veto scale
 ATLAS_2012_I1094568 7000 1.6 +0.20 1.8
Jet mass
 Jet mass
 CMS_2017_I1518399 8000 n/a - n/a
CMS_2019_I1764472 13000 1.9 -1.0 0.89
Jet pT
 ATLAS_2014_I1304688 7000 9.1 -0.30 8.8
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 2.7 0 2.7
Jet Shapes
 Integral Jet Shape
 ATLAS_2013_I1243871 7000 0.38 -0.030 0.35
Identified Particles
 E(KS0)
 ATLAS_2019_I1746286 7000 2.4 -0.30 2.1
Identified Particles
 η(KS0)
 ATLAS_2019_I1746286 7000 1.7 -0.40 1.3
Identified Particles
 pT(KS0)
 ATLAS_2019_I1746286 7000 2.4 -0.40 2.0
Identified Particles
 E(KS0) to E(jet) ratio
 ATLAS_2019_I1746286 7000 3.5 -0.40 3.1
Lepton η
 ATLAS_2019_I1759875 13000 14 +1.0 15
CMS_2018_I1703993 13000 14 -1.0 13
Lepton pT
 ATLAS_2019_I1759875 13000 19 +4.0 23
CMS_2018_I1703993 13000 27 -2.0 25
CMS_2021_I1901295 13000 5.8 -0.80 5.0
Identified Particles
 E(Λ0)
 ATLAS_2019_I1746286 7000 4.9 +0.20 5.1
Identified Particles
 η(Λ0)
 ATLAS_2019_I1746286 7000 0.64 +0.12 0.76
Identified Particles
 pT(Λ0)
 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 17 +1.0 18
Dilepton
 Δη
 CMS_2016_I1430892 8000 n/a - n/a
CMS_2018_I1703993 13000 17 +1.0 18
Dilepton
 Δφ
 ATLAS_2019_I1718132 13000 n/a - n/a
ATLAS_2019_I1759875 13000 9.1 +0.90 10
CMS_2018_I1703993 13000 23 -4.0 19
Dilepton
 HT
 ATLAS_2019_I1759875 13000 18 +1.0 19
Dilepton
 m
 ATLAS_2019_I1759875 13000 14 +3.0 17
CMS_2018_I1703993 13000 26 -3.0 23
Dilepton
 pT
 ATLAS_2019_I1718132 13000 n/a - n/a
ATLAS_2019_I1759875 13000 21 -1.0 20
CMS_2018_I1703993 13000 25 -2.0 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 1.3 -0.51 0.79
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 16 -1.0 15
Jet Multiplicities
 Jet multiplicity
 ATLAS_2014_I1304688 7000 n/a - n/a
ATLAS_2020_I1801434 13000 8.1 -5.0 3.1
CMS_2018_I1703993 13000 38 -7.0 31
sumpt
 ATLAS_2022_I2152933 13000 3.6 -1.3 2.3
Jet Multiplicities
 Subjet multiplicity
 ATLAS_2019_I1750330 13000 n/a - n/a
Pouttop
 ATLAS_2019_I1750330 13000 12 0 12
ATLAS_2020_I1801434 13000 6.7 -2.5 4.2
ATLAS_2022_I2077575 13000 5.5 +0.90 6.4
Top pT
 ATLAS_2019_I1750330 13000 7.3 -0.90 6.4
ATLAS_2020_I1801434 13000 3.5 -1.6 1.9
ATLAS_2022_I2037744 13000 6.2 -1.7 4.5
ATLAS_2022_I2077575 13000 2.4* +0.50 2.9*
CMS_2018_I1703993 13000 48 -9.0 39
CMS_2021_I1901295 13000 16 -1.0 15
top.pt.ttbarRF
 CMS_2018_I1703993 13000 34 -3.0 31
pT ratio
 Top quarks
 ATLAS_2020_I1801434 13000 2.7 -0.70 2.0
Top rapidity
 ATLAS_2019_I1750330 13000 5.2 -0.50 4.7
ATLAS_2020_I1801434 13000 1.9 -0.60 1.3
ATLAS_2022_I2037744 13000 2.4 -0.20 2.2
ATLAS_2022_I2077575 13000 3.2* +0.30 3.5*
CMS_2018_I1703993 13000 29 0 29
CMS_2021_I1901295 13000 10 -0.90 9.1
topej.dphi
 ATLAS_2022_I2037744 13000 6.3 -0.30 6.0
topej.m
 ATLAS_2022_I2037744 13000 7.5 -0.50 7.0
χ(ttbar)
 ATLAS_2019_I1750330 13000 6.1 -0.50 5.6
ATLAS_2020_I1801434 13000 3.2 -2.3 0.90
ATLAS_2022_I2077575 13000 6.3* +1.4 7.7*
Δφ(ttbar)
 ATLAS_2019_I1750330 13000 7.5 -0.90 6.6
ATLAS_2020_I1801434 13000 9.3 -3.6 5.7
ATLAS_2022_I2037744 13000 11 +1.0 12
ATLAS_2022_I2077575 13000 6.4 +0.70 7.1
CMS_2018_I1703993 13000 74 -2.0 72
CMS_2021_I1901295 13000 18 0 18
Δy (ttbar)
 CMS_2016_I1430892 8000 n/a - n/a
CMS_2018_I1703993 13000 35 -1.0 34
CMS_2021_I1901295 13000 10 0 10
ttbar HT
 ATLAS_2019_I1750330 13000 8.3 -1.4 6.9
ATLAS_2020_I1801434 13000 1.9 -0.50 1.4
ATLAS_2022_I2037744 13000 3.6 -0.30 3.3
ATLAS_2022_I2077575 13000 5.8* -2.2 3.6
CMS_2021_I1901295 13000 13 -2.0 11
m(ttbar)
 ATLAS_2019_I1750330 13000 4.8 -1.0 3.8
ATLAS_2020_I1801434 13000 2.7 -1.2 1.5
ATLAS_2022_I2037744 13000 4.1 -0.30 3.8
ATLAS_2022_I2077575 13000 1.8* 0 1.8*
CMS_2018_I1703993 13000 34 -6.0 28
CMS_2021_I1901295 13000 16 +1.0 17
Pcrossttbar
 ATLAS_2020_I1801434 13000 2.0* +0.20 2.2
ttbar pT
 ATLAS_2019_I1750330 13000 12 -1.0 11
ATLAS_2020_I1801434 13000 5.2 -1.2 4.0
ATLAS_2022_I2037744 13000 14 -3.0 11
ATLAS_2022_I2077575 13000 3.5* +0.50 4.0*
CMS_2018_I1703993 13000 69 -11 58
CMS_2021_I1901295 13000 18 0 18
pT ratio
 ttbar to extra jet
 ATLAS_2020_I1801434 13000 3.5 -1.8 1.7
ttbar.thetaStar
 ATLAS_2022_I2077575 13000 4.4 +0.40 4.8
CMS_2021_I1901295 13000 15 0 15
Ttbar rapidity
 ATLAS_2019_I1750330 13000 4.7 -0.40 4.3
ATLAS_2020_I1801434 13000 1.7 -0.50 1.2
ATLAS_2022_I2037744 13000 2.5 +0.80 3.3
ATLAS_2022_I2077575 13000 5.8* -1.5 4.3
CMS_2018_I1703993 13000 26 -1.0 25
CMS_2021_I1901295 13000 13 -1.0 12
Mean rapidity
 ATLAS_2019_I1750330 13000 4.5 -0.40 4.1
ATLAS_2020_I1801434 13000 1.2 -0.50 0.70
ATLAS_2022_I2077575 13000 5.6* -1.0 4.6
ttbarej.ht
 ATLAS_2022_I2037744 13000 18 -7.0 11
ttbarej.m
 CMS_2021_I1901295 13000 16 -3.0 13
pT ratio
 W to b
 ATLAS_2020_I1801434 13000 1.7 -1.0 0.67
pT ratio
 W to top
 ATLAS_2020_I1801434 13000 1.7 -0.20 1.5
Cross sections
 ATLAS_2022_I2037744 13000 23 +4.0 27
ATLAS_2022_I2077575 13000 22 +5.0 27
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.