Generator / tune

Details for Pythia 8.313 tune-A2m 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 - 0.97
Asymmetry
 AC vs pTttbar
 CMS_2016_I1430892 8000 - 50
Asymmetry
 AC vs yttbar
 CMS_2016_I1430892 8000 - 5.7
Asymmetry
 ACl vs Mttbar
 CMS_2016_I1430892 8000 - 6.0
Asymmetry
 ACl vs pTttbar
 CMS_2016_I1430892 8000 - 1.4
Asymmetry
 ACl vs yttbar
 CMS_2016_I1430892 8000 - 15
Asymmetry
 Energy asymmetry
 ATLAS_2021_I1941095 13000 - 1.2
B jet
 η
 CMS_2018_I1703993 13000 - 18
B jet
 pT
 CMS_2018_I1703993 13000 - 21
bjbj.m
 CMS_2018_I1703993 13000 - 27
bjbj.pt
 CMS_2018_I1703993 13000 - 22
bjt.dphi
 ATLAS_2022_I2037744 13000 - 1.1
ej.pt
 ATLAS_2022_I2037744 13000 - 2.2*
pT ratio
 Extra jets
 ATLAS_2020_I1801434 13000 - 1.9
pT ratio
 Extra to leading jet
 ATLAS_2020_I1801434 13000 - 2.1
pT ratio
 Extra jet to Top
 ATLAS_2020_I1801434 13000 - 2.5
ΔR(extra jets)
 ATLAS_2020_I1801434 13000 - 1.1
ejej.dphi
 ATLAS_2022_I2037744 13000 - 1.7
ejets.ht
 CMS_2021_I1901295 13000 - 8.9
ΔR(extra, leading jet)
 ATLAS_2020_I1801434 13000 - 3.0
ΔR(top, extra jet)
 ATLAS_2020_I1801434 13000 - 1.7
Jets + Veto
 Gap frac. vs Veto scale
 ATLAS_2012_I1094568 7000 - 0.11
Jets + Veto
 Gap frac. vs scalar veto scale
 ATLAS_2012_I1094568 7000 - 0.028
Jet mass
 Jet mass
 CMS_2017_I1518399 8000 - 14
CMS_2019_I1764472 13000 - 0.46
Jet pT
 ATLAS_2014_I1304688 7000 - 9.6
ATLAS_2019_I1718132 13000 - 14
Dijet
 Δη
 ATLAS_2019_I1718132 13000 - 28
Dijet
 Δφ
 ATLAS_2019_I1718132 13000 - 27
Dijet
 HT
 ATLAS_2019_I1718132 13000 - 14
Jet mass
 Dijet mass
 ATLAS_2019_I1718132 13000 - 29
Jet Shapes
 Differential Jet Shape
 ATLAS_2013_I1243871 7000 - 2.2
Jet Shapes
 Integral Jet Shape
 ATLAS_2013_I1243871 7000 - 0.30
Identified Particles
 E(KS0)
 ATLAS_2019_I1746286 7000 - 1.5
Identified Particles
 η(KS0)
 ATLAS_2019_I1746286 7000 - 0.94
Identified Particles
 pT(KS0)
 ATLAS_2019_I1746286 7000 - 1.4
Identified Particles
 E(KS0) to E(jet) ratio
 ATLAS_2019_I1746286 7000 - 2.1
Lepton η
 ATLAS_2019_I1759875 13000 - 23
CMS_2018_I1703993 13000 - 12
Lepton pT
 ATLAS_2019_I1759875 13000 - 31
CMS_2018_I1703993 13000 - 21
CMS_2021_I1901295 13000 - 6.7
Identified Particles
 E(Λ0)
 ATLAS_2019_I1746286 7000 - 5.6
Identified Particles
 η(Λ0)
 ATLAS_2019_I1746286 7000 - 0.86
Identified Particles
 pT(Λ0)
 ATLAS_2019_I1746286 7000 - 6.2
Δφ(lepton,jet)
 ATLAS_2019_I1718132 13000 - 28
Dilepton
 E
 ATLAS_2019_I1759875 13000 - 25
Dilepton
 Δη
 CMS_2016_I1430892 8000 - 0.55
CMS_2018_I1703993 13000 - 15
Dilepton
 Δφ
 ATLAS_2019_I1718132 13000 - 37
ATLAS_2019_I1759875 13000 - 18
CMS_2018_I1703993 13000 - 24
Dilepton
 HT
 ATLAS_2019_I1759875 13000 - 25
Dilepton
 m
 ATLAS_2019_I1759875 13000 - 24
CMS_2018_I1703993 13000 - 22
Dilepton
 pT
 ATLAS_2019_I1718132 13000 - 23
ATLAS_2019_I1759875 13000 - 27
CMS_2018_I1703993 13000 - 17
Dilepton
 y
 ATLAS_2019_I1759875 13000 - 18
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 - 12
Jet Multiplicities
 Jet multiplicity
 ATLAS_2014_I1304688 7000 - n/a
ATLAS_2020_I1801434 13000 - 4.8
CMS_2018_I1703993 13000 - 18
sumpt
 ATLAS_2022_I2152933 13000 - 3.3
Jet Multiplicities
 Subjet multiplicity
 ATLAS_2019_I1750330 13000 - n/a
Pouttop
 ATLAS_2019_I1750330 13000 - 4.9
ATLAS_2020_I1801434 13000 - 4.0
ATLAS_2022_I2077575 13000 - 2.0
Top pT
 ATLAS_2019_I1750330 13000 - 3.9*
ATLAS_2020_I1801434 13000 - 3.0
ATLAS_2022_I2037744 13000 - 0.81
ATLAS_2022_I2077575 13000 - 1.6*
CMS_2018_I1703993 13000 - 37
CMS_2021_I1901295 13000 - 11*
top.pt.ttbarRF
 CMS_2018_I1703993 13000 - 37
pT ratio
 Top quarks
 ATLAS_2020_I1801434 13000 - 3.7
Top rapidity
 ATLAS_2019_I1750330 13000 - 5.0
ATLAS_2020_I1801434 13000 - 3.1
ATLAS_2022_I2037744 13000 - 1.2*
ATLAS_2022_I2077575 13000 - 1.9*
CMS_2018_I1703993 13000 - 31
CMS_2021_I1901295 13000 - 11
topej.dphi
 ATLAS_2022_I2037744 13000 - 2.6
topej.m
 ATLAS_2022_I2037744 13000 - 1.8
χ(ttbar)
 ATLAS_2019_I1750330 13000 - 5.7
ATLAS_2020_I1801434 13000 - 3.1
ATLAS_2022_I2077575 13000 - 2.7*
Δφ(ttbar)
 ATLAS_2019_I1750330 13000 - 5.3
ATLAS_2020_I1801434 13000 - 3.5
ATLAS_2022_I2037744 13000 - 1.1
ATLAS_2022_I2077575 13000 - 2.2
CMS_2018_I1703993 13000 - 51
CMS_2021_I1901295 13000 - 16
Δy (ttbar)
 CMS_2016_I1430892 8000 - 0.23
CMS_2018_I1703993 13000 - 34
CMS_2021_I1901295 13000 - 12
ttbar HT
 ATLAS_2019_I1750330 13000 - 4.1
ATLAS_2020_I1801434 13000 - 3.2
ATLAS_2022_I2037744 13000 - n/a
ATLAS_2022_I2077575 13000 - 3.5*
CMS_2021_I1901295 13000 - n/a
m(ttbar)
 ATLAS_2019_I1750330 13000 - 3.9*
ATLAS_2020_I1801434 13000 - 2.7
ATLAS_2022_I2037744 13000 - n/a
ATLAS_2022_I2077575 13000 - 1.7*
CMS_2018_I1703993 13000 - 36
CMS_2021_I1901295 13000 - 16*
Pcrossttbar
 ATLAS_2020_I1801434 13000 - 3.9
ttbar pT
 ATLAS_2019_I1750330 13000 - 5.0
ATLAS_2020_I1801434 13000 - 3.3
ATLAS_2022_I2037744 13000 - 1.1
ATLAS_2022_I2077575 13000 - 1.5
CMS_2018_I1703993 13000 - 33
CMS_2021_I1901295 13000 - 12
pT ratio
 ttbar to extra jet
 ATLAS_2020_I1801434 13000 - 2.4
ttbar.thetaStar
 ATLAS_2022_I2077575 13000 - 2.0
CMS_2021_I1901295 13000 - 16
Ttbar rapidity
 ATLAS_2019_I1750330 13000 - 4.7
ATLAS_2020_I1801434 13000 - 2.0
ATLAS_2022_I2037744 13000 - n/a
ATLAS_2022_I2077575 13000 - 1.8
CMS_2018_I1703993 13000 - 30
CMS_2021_I1901295 13000 - 14
Mean rapidity
 ATLAS_2019_I1750330 13000 - 6.0
ATLAS_2020_I1801434 13000 - 2.8
ATLAS_2022_I2077575 13000 - 2.3
ttbarej.ht
 ATLAS_2022_I2037744 13000 - 0.95
ttbarej.m
 CMS_2021_I1901295 13000 - 11
pT ratio
 W to b
 ATLAS_2020_I1801434 13000 - 2.9
pT ratio
 W to top
 ATLAS_2020_I1801434 13000 - 3.3
Cross sections
 ATLAS_2022_I2037744 13000 - 0.64
ATLAS_2022_I2077575 13000 - 11
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.