Generator / tune

Details for Pythia 8.313 qcdcr0 vs. 8.315

pp/ppbar → Top (tt)


Observable Reference Energy χ2+5% (8.313) Δ χ2+5% (8.315)
n/a -
Asymmetry
AC vs Mttbar
CMS_2016_I1430892 8000 1.7 +0.80 2.5
Asymmetry
AC vs pTttbar
CMS_2016_I1430892 8000 14 +38 52
Asymmetry
AC vs yttbar
CMS_2016_I1430892 8000 6.4 +3.6 10
Asymmetry
ACl vs Mttbar
CMS_2016_I1430892 8000 1.7 +8.3 10
Asymmetry
ACl vs pTttbar
CMS_2016_I1430892 8000 6.1 -1.1 5.0
Asymmetry
ACl vs yttbar
CMS_2016_I1430892 8000 3.7 +4.9 8.6
Asymmetry
Energy asymmetry
ATLAS_2021_I1941095 13000 n/a - 1.0
B jet
η
CMS_2018_I1703993 13000 24 -2.0 22
B jet
pT
CMS_2018_I1703993 13000 28 -2.0 26
bjbj.m
CMS_2018_I1703993 13000 35 -4.0 31
bjbj.pt
CMS_2018_I1703993 13000 29 -2.0 27
bjt.dphi
ATLAS_2022_I2037744 13000 0.75 +1.1 1.8
ej.pt
ATLAS_2022_I2037744 13000 2.7* +0.100 2.8*
pT ratio
Extra jets
ATLAS_2020_I1801434 13000 2.0 +0.10 2.1
pT ratio
Extra to leading jet
ATLAS_2020_I1801434 13000 2.4 -0.20 2.2
pT ratio
Extra jet to Top
ATLAS_2020_I1801434 13000 2.2 -0.60 1.6
ΔR(extra jets)
ATLAS_2020_I1801434 13000 2.5 -0.20 2.3
ejej.dphi
ATLAS_2022_I2037744 13000 1.7 +1.3 3.0
ejets.ht
CMS_2021_I1901295 13000 12 +1.0 13
ΔR(extra, leading jet)
ATLAS_2020_I1801434 13000 2.3 +0.30 2.6
ΔR(top, extra jet)
ATLAS_2020_I1801434 13000 2.5 -0.20 2.3
Jets + Veto
Gap frac. vs Veto scale
ATLAS_2012_I1094568 7000 0.15 +0.010 0.16
Jets + Veto
Gap frac. vs scalar veto scale
ATLAS_2012_I1094568 7000 0.030 +0.018 0.048
Jet mass
Jet mass
CMS_2017_I1518399 8000 3.5 +6.2 9.7
CMS_2019_I1764472 13000 0.48 +0.44 0.92
Jet pT
ATLAS_2014_I1304688 7000 7.6 +0.60 8.2
ATLAS_2019_I1718132 13000 4.8* +6.2 11*
Dijet
Δη
ATLAS_2019_I1718132 13000 7.0 +11 18
Dijet
Δφ
ATLAS_2019_I1718132 13000 9.0 +13 22
Dijet
HT
ATLAS_2019_I1718132 13000 n/a - 8.6
Jet mass
Dijet mass
ATLAS_2019_I1718132 13000 7.7 +8.3 16
Jet Shapes
Differential Jet Shape
ATLAS_2013_I1243871 7000 2.6 -0.90 1.7
Jet Shapes
Integral Jet Shape
ATLAS_2013_I1243871 7000 0.40 -0.10 0.30
Identified Particles
E(KS0)
ATLAS_2019_I1746286 7000 1.9 -0.100 1.8
Identified Particles
η(KS0)
ATLAS_2019_I1746286 7000 1.1 -0.20 0.90
Identified Particles
pT(KS0)
ATLAS_2019_I1746286 7000 1.9 -0.30 1.6
Identified Particles
E(KS0) to E(jet) ratio
ATLAS_2019_I1746286 7000 2.7 -0.10 2.6
Lepton η
ATLAS_2019_I1759875 13000 18 -2.0 16
CMS_2018_I1703993 13000 15 -1.0 14
Lepton pT
ATLAS_2019_I1759875 13000 24 -3.0 21
CMS_2018_I1703993 13000 27 -3.0 24
CMS_2021_I1901295 13000 7.2 -0.30 6.9
Identified Particles
E(Λ0)
ATLAS_2019_I1746286 7000 4.0 -0.40 3.6
Identified Particles
η(Λ0)
ATLAS_2019_I1746286 7000 1.2 0 1.2
Identified Particles
pT0)
ATLAS_2019_I1746286 7000 4.0 -0.30 3.7
Δφ(lepton,jet)
ATLAS_2019_I1718132 13000 9.1 +11 20
Dilepton
E
ATLAS_2019_I1759875 13000 20 -2.0 18
Dilepton
Δη
CMS_2016_I1430892 8000 0.47 -0.070 0.40
CMS_2018_I1703993 13000 20 -2.0 18
Dilepton
Δφ
ATLAS_2019_I1718132 13000 8.9 +14 23
ATLAS_2019_I1759875 13000 13 -1.0 12
CMS_2018_I1703993 13000 25 -2.0 23
Dilepton
HT
ATLAS_2019_I1759875 13000 19 -1.0 18
Dilepton
m
ATLAS_2019_I1759875 13000 18 -1.0 17
CMS_2018_I1703993 13000 25 -3.0 22
Dilepton
pT
ATLAS_2019_I1718132 13000 5.8 +9.2 15
ATLAS_2019_I1759875 13000 19 0 19
CMS_2018_I1703993 13000 - 20
Dilepton
y
ATLAS_2019_I1759875 13000 - 12
ST(leptons, jets)
ATLAS_2019_I1718132 13000 - n/a
nch
ATLAS_2022_I2152933 13000 - 3.4
Jet Multiplicities
Extra jets multiplicity
ATLAS_2019_I1750330 13000 - n/a
ATLAS_2022_I2037744 13000 - n/a
CMS_2021_I1901295 13000 - 15
Jet Multiplicities
Jet multiplicity
ATLAS_2014_I1304688 7000 - n/a
ATLAS_2020_I1801434 13000 - 4.6
CMS_2018_I1703993 13000 - 19
sumpt
ATLAS_2022_I2152933 13000 - 8.8
Jet Multiplicities
Subjet multiplicity
ATLAS_2019_I1750330 13000 - n/a
Pouttop
ATLAS_2019_I1750330 13000 - 4.7
ATLAS_2020_I1801434 13000 - 3.5
ATLAS_2022_I2077575 13000 - 2.8
Top pT
ATLAS_2019_I1750330 13000 - 3.7*
ATLAS_2020_I1801434 13000 - 2.8
ATLAS_2022_I2037744 13000 - 0.97
ATLAS_2022_I2077575 13000 - 2.3*
CMS_2018_I1703993 13000 - 36
CMS_2021_I1901295 13000 - 14*
top.pt.ttbarRF
CMS_2018_I1703993 13000 - 32
pT ratio
Top quarks
ATLAS_2020_I1801434 13000 - 3.4
Top rapidity
ATLAS_2019_I1750330 13000 - 4.4
ATLAS_2020_I1801434 13000 - 4.4
ATLAS_2022_I2037744 13000 - 0.81
ATLAS_2022_I2077575 13000 - 3.0*
CMS_2018_I1703993 13000 - 29
CMS_2021_I1901295 13000 - 12
topej.dphi
ATLAS_2022_I2037744 13000 - 2.1
topej.m
ATLAS_2022_I2037744 13000 - 1.4
χ(ttbar)
ATLAS_2019_I1750330 13000 - 4.6
ATLAS_2020_I1801434 13000 - 2.8
ATLAS_2022_I2077575 13000 - 3.2
Δφ(ttbar)
ATLAS_2019_I1750330 13000 - 5.8
ATLAS_2020_I1801434 13000 - 4.4
ATLAS_2022_I2037744 13000 - n/a
ATLAS_2022_I2077575 13000 - 3.3
CMS_2018_I1703993 13000 - 44
CMS_2021_I1901295 13000 - 21
Δy (ttbar)
CMS_2016_I1430892 8000 - 0.12
CMS_2018_I1703993 13000 - 31
CMS_2021_I1901295 13000 - 13
ttbar HT
ATLAS_2019_I1750330 13000 - 3.8
ATLAS_2020_I1801434 13000 - 2.6
ATLAS_2022_I2037744 13000 - 0.66
ATLAS_2022_I2077575 13000 - 3.0
CMS_2021_I1901295 13000 - 12
m(ttbar)
ATLAS_2019_I1750330 13000 - 2.8*
ATLAS_2020_I1801434 13000 - 2.6
ATLAS_2022_I2037744 13000 - n/a
ATLAS_2022_I2077575 13000 - 2.4*
CMS_2018_I1703993 13000 - 35
CMS_2021_I1901295 13000 - 17
Pcrossttbar
ATLAS_2020_I1801434 13000 - 3.0
ttbar pT
ATLAS_2019_I1750330 13000 - 4.9*
ATLAS_2020_I1801434 13000 - 3.3
ATLAS_2022_I2037744 13000 - 2.7
ATLAS_2022_I2077575 13000 - 2.5*
CMS_2018_I1703993 13000 - 31
CMS_2021_I1901295 13000 - 13
pT ratio
ttbar to extra jet
ATLAS_2020_I1801434 13000 - 2.6
ttbar.thetaStar
ATLAS_2022_I2077575 13000 - 4.2
CMS_2021_I1901295 13000 - 18
Ttbar rapidity
ATLAS_2019_I1750330 13000 - 4.2
ATLAS_2020_I1801434 13000 - 2.5
ATLAS_2022_I2037744 13000 - 1.5
ATLAS_2022_I2077575 13000 - 2.9
CMS_2018_I1703993 13000 - 28
CMS_2021_I1901295 13000 - 16
Mean rapidity
ATLAS_2019_I1750330 13000 - 6.3
ATLAS_2020_I1801434 13000 - 3.0
ATLAS_2022_I2077575 13000 - 3.0
ttbarej.ht
ATLAS_2022_I2037744 13000 - 1.6
ttbarej.m
CMS_2021_I1901295 13000 - 13
pT ratio
W to b
ATLAS_2020_I1801434 13000 - 2.7
pT ratio
W to top
ATLAS_2020_I1801434 13000 - 3.2
Cross sections
ATLAS_2022_I2037744 13000 - 0.077
ATLAS_2022_I2077575 13000 - 20
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 1312 histograms.