Generator / tune

Details for Pythia 8.313 qcdcr2 vs. 8.315

pp/ppbar → Top (tt)


Observable Reference Energy χ2+5% (8.313) Δ χ2+5% (8.315)
Asymmetry
 AC vs Mttbar
 CMS_2016_I1430892 8000 - 6.6
Asymmetry
 AC vs pTttbar
 CMS_2016_I1430892 8000 - 56
Asymmetry
 AC vs yttbar
 CMS_2016_I1430892 8000 - 20
Asymmetry
 ACl vs Mttbar
 CMS_2016_I1430892 8000 - 10.0
Asymmetry
 ACl vs pTttbar
 CMS_2016_I1430892 8000 - 9.4
Asymmetry
 ACl vs yttbar
 CMS_2016_I1430892 8000 - 15
Asymmetry
 Energy asymmetry
 ATLAS_2021_I1941095 13000 - 0.62
B jet
 η
 CMS_2018_I1703993 13000 - 23
B jet
 pT
 CMS_2018_I1703993 13000 - 29
bjbj.m
 CMS_2018_I1703993 13000 - 36
bjbj.pt
 CMS_2018_I1703993 13000 - 29
bjt.dphi
 ATLAS_2022_I2037744 13000 - 0.85
ej.pt
 ATLAS_2022_I2037744 13000 - 2.8*
pT ratio
 Extra jets
 ATLAS_2020_I1801434 13000 - 2.2
pT ratio
 Extra to leading jet
 ATLAS_2020_I1801434 13000 - 2.5
pT ratio
 Extra jet to Top
 ATLAS_2020_I1801434 13000 - 2.7
ΔR(extra jets)
 ATLAS_2020_I1801434 13000 - 2.7
ejej.dphi
 ATLAS_2022_I2037744 13000 - 1.0
ejets.ht
 CMS_2021_I1901295 13000 - 11
ΔR(extra, leading jet)
 ATLAS_2020_I1801434 13000 - 3.0
ΔR(top, extra jet)
 ATLAS_2020_I1801434 13000 - 1.9
Jets + Veto
 Gap frac. vs Veto scale
 ATLAS_2012_I1094568 7000 - 0.23
Jets + Veto
 Gap frac. vs scalar veto scale
 ATLAS_2012_I1094568 7000 - 0.085
Jet mass
 Jet mass
 CMS_2017_I1518399 8000 - 12
CMS_2019_I1764472 13000 - 0.46
Jet pT
 ATLAS_2014_I1304688 7000 - 8.2
ATLAS_2019_I1718132 13000 - 14
Dijet
 Δη
 ATLAS_2019_I1718132 13000 - 24
Dijet
 Δφ
 ATLAS_2019_I1718132 13000 - 28
Dijet
 HT
 ATLAS_2019_I1718132 13000 - 14
Jet mass
 Dijet mass
 ATLAS_2019_I1718132 13000 - 24
Jet Shapes
 Differential Jet Shape
 ATLAS_2013_I1243871 7000 - 2.1
Jet Shapes
 Integral Jet Shape
 ATLAS_2013_I1243871 7000 - 0.32
Identified Particles
 E(KS0)
 ATLAS_2019_I1746286 7000 - 1.9
Identified Particles
 η(KS0)
 ATLAS_2019_I1746286 7000 - 0.96
Identified Particles
 pT(KS0)
 ATLAS_2019_I1746286 7000 - 1.9
Identified Particles
 E(KS0) to E(jet) ratio
 ATLAS_2019_I1746286 7000 - 2.7
Lepton η
 ATLAS_2019_I1759875 13000 - 18
CMS_2018_I1703993 13000 - 15
Lepton pT
 ATLAS_2019_I1759875 13000 - 24
CMS_2018_I1703993 13000 - 28
CMS_2021_I1901295 13000 - 6.5
Identified Particles
 E(Λ0)
 ATLAS_2019_I1746286 7000 - 5.4
Identified Particles
 η(Λ0)
 ATLAS_2019_I1746286 7000 - 1.9
Identified Particles
 pT(Λ0)
 ATLAS_2019_I1746286 7000 - 4.8
Δφ(lepton,jet)
 ATLAS_2019_I1718132 13000 - 28
Dilepton
 E
 ATLAS_2019_I1759875 13000 - 21
Dilepton
 Δη
 CMS_2016_I1430892 8000 - 0.54
CMS_2018_I1703993 13000 - 20
Dilepton
 Δφ
 ATLAS_2019_I1718132 13000 - 37
ATLAS_2019_I1759875 13000 - 13
CMS_2018_I1703993 13000 - 29
Dilepton
 HT
 ATLAS_2019_I1759875 13000 - 20
Dilepton
 m
 ATLAS_2019_I1759875 13000 - 20
CMS_2018_I1703993 13000 - 31
Dilepton
 pT
 ATLAS_2019_I1718132 13000 - 20
ATLAS_2019_I1759875 13000 - 20
CMS_2018_I1703993 13000 - 23
Dilepton
 y
 ATLAS_2019_I1759875 13000 - 14
ST(leptons, jets)
 ATLAS_2019_I1718132 13000 - n/a
nch
 ATLAS_2022_I2152933 13000 - 4.2
Jet Multiplicities
 Extra jets multiplicity
 ATLAS_2019_I1750330 13000 - n/a
ATLAS_2022_I2037744 13000 - n/a
CMS_2021_I1901295 13000 - 16
Jet Multiplicities
 Jet multiplicity
 ATLAS_2014_I1304688 7000 - n/a
ATLAS_2020_I1801434 13000 - 4.4
CMS_2018_I1703993 13000 - 21
sumpt
 ATLAS_2022_I2152933 13000 - 4.9
Jet Multiplicities
 Subjet multiplicity
 ATLAS_2019_I1750330 13000 - n/a
Pouttop
 ATLAS_2019_I1750330 13000 - 4.9
ATLAS_2020_I1801434 13000 - 3.4
ATLAS_2022_I2077575 13000 - 4.8*
Top pT
 ATLAS_2019_I1750330 13000 - 3.9*
ATLAS_2020_I1801434 13000 - 2.6
ATLAS_2022_I2037744 13000 - 1.5*
ATLAS_2022_I2077575 13000 - 2.4*
CMS_2018_I1703993 13000 - 38
CMS_2021_I1901295 13000 - 12*
top.pt.ttbarRF
 CMS_2018_I1703993 13000 - 35
pT ratio
 Top quarks
 ATLAS_2020_I1801434 13000 - 3.5
Top rapidity
 ATLAS_2019_I1750330 13000 - 4.4
ATLAS_2020_I1801434 13000 - 3.0
ATLAS_2022_I2037744 13000 - 1.8
ATLAS_2022_I2077575 13000 - 3.0*
CMS_2018_I1703993 13000 - 31
CMS_2021_I1901295 13000 - 12
topej.dphi
 ATLAS_2022_I2037744 13000 - 2.1
topej.m
 ATLAS_2022_I2037744 13000 - 0.90
χ(ttbar)
 ATLAS_2019_I1750330 13000 - 4.9
ATLAS_2020_I1801434 13000 - 4.6
ATLAS_2022_I2077575 13000 - 2.7
Δφ(ttbar)
 ATLAS_2019_I1750330 13000 - 5.0
ATLAS_2020_I1801434 13000 - 4.3
ATLAS_2022_I2037744 13000 - 2.2
ATLAS_2022_I2077575 13000 - 3.7
CMS_2018_I1703993 13000 - 49
CMS_2021_I1901295 13000 - 21
Δy (ttbar)
 CMS_2016_I1430892 8000 - 0.13
CMS_2018_I1703993 13000 - 31
CMS_2021_I1901295 13000 - 12
ttbar HT
 ATLAS_2019_I1750330 13000 - 3.7
ATLAS_2020_I1801434 13000 - 2.5
ATLAS_2022_I2037744 13000 - n/a
ATLAS_2022_I2077575 13000 - 2.6
CMS_2021_I1901295 13000 - 12
m(ttbar)
 ATLAS_2019_I1750330 13000 - 3.3*
ATLAS_2020_I1801434 13000 - 2.0
ATLAS_2022_I2037744 13000 - 2.1
ATLAS_2022_I2077575 13000 - 2.3*
CMS_2018_I1703993 13000 - 41
CMS_2021_I1901295 13000 - 16
Pcrossttbar
 ATLAS_2020_I1801434 13000 - 2.8
ttbar pT
 ATLAS_2019_I1750330 13000 - 4.5
ATLAS_2020_I1801434 13000 - 2.5
ATLAS_2022_I2037744 13000 - 0.83
ATLAS_2022_I2077575 13000 - 2.5*
CMS_2018_I1703993 13000 - 29
CMS_2021_I1901295 13000 - 12
pT ratio
 ttbar to extra jet
 ATLAS_2020_I1801434 13000 - 3.1
ttbar.thetaStar
 ATLAS_2022_I2077575 13000 - 2.7
CMS_2021_I1901295 13000 - 17
Ttbar rapidity
 ATLAS_2019_I1750330 13000 - 4.4
ATLAS_2020_I1801434 13000 - 2.3
ATLAS_2022_I2037744 13000 - 1.9
ATLAS_2022_I2077575 13000 - 5.1*
CMS_2018_I1703993 13000 - 30
CMS_2021_I1901295 13000 - 15
Mean rapidity
 ATLAS_2019_I1750330 13000 - 6.4
ATLAS_2020_I1801434 13000 - 2.6
ATLAS_2022_I2077575 13000 - 4.8*
ttbarej.ht
 ATLAS_2022_I2037744 13000 - 0.54
ttbarej.m
 CMS_2021_I1901295 13000 - 13
pT ratio
 W to b
 ATLAS_2020_I1801434 13000 - 3.4
pT ratio
 W to top
 ATLAS_2020_I1801434 13000 - 2.9
Cross sections
 ATLAS_2022_I2037744 13000 - 0.98
ATLAS_2022_I2077575 13000 - 18
CMS_2019_I1753720 13000 - 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 1112 histograms.