Generator / tune

Details for Pythia 6.427 dwt vs. 6.428

pp/ppbar → Top (tt)


Observable Reference Energy χ2+5% (6.427) Δ χ2+5% (6.428)
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 - n/a
B jet
 η
 CMS_2018_I1703993 13000 150 0 150
B jet
 pT
 CMS_2018_I1703993 13000 200 -10 190
bjbj.m
 CMS_2018_I1703993 13000 240 0 240
bjbj.pt
 CMS_2018_I1703993 13000 200 0 200
bjt.dphi
 ATLAS_2022_I2037744 13000 0.64 +0.86 1.5
ej.pt
 ATLAS_2022_I2037744 13000 3.4 0 3.4
pT ratio
 Extra jets
 ATLAS_2020_I1801434 13000 5.2 -0.30 4.9
pT ratio
 Extra to leading jet
 ATLAS_2020_I1801434 13000 5.5 +0.100 5.6
pT ratio
 Extra jet to Top
 ATLAS_2020_I1801434 13000 6.1 -0.50 5.6
ΔR(extra jets)
 ATLAS_2020_I1801434 13000 4.9 -0.70 4.2
ejej.dphi
 ATLAS_2022_I2037744 13000 1.1 +0.90 2.0
ejets.ht
 CMS_2021_I1901295 13000 23 -3.0 20
ΔR(extra, leading jet)
 ATLAS_2020_I1801434 13000 5.7 +0.50 6.2
ΔR(top, extra jet)
 ATLAS_2020_I1801434 13000 4.7 -0.20 4.5
Jets + Veto
 Gap frac. vs Veto scale
 ATLAS_2012_I1094568 7000 0.035 +0.011 0.046
Jets + Veto
 Gap frac. vs scalar veto scale
 ATLAS_2012_I1094568 7000 0.026 +0.017 0.043
Jet mass
 Jet mass
 CMS_2017_I1518399 8000 n/a - n/a
CMS_2019_I1764472 13000 2.2 -0.40 1.8
Jet pT
 ATLAS_2014_I1304688 7000 26 0 26
ATLAS_2019_I1718132 13000 18 - n/a
Dijet
 Δη
 ATLAS_2019_I1718132 13000 29* - n/a
Dijet
 Δφ
 ATLAS_2019_I1718132 13000 19 - n/a
Dijet
 HT
 ATLAS_2019_I1718132 13000 15 - n/a
Jet mass
 Dijet mass
 ATLAS_2019_I1718132 13000 21 - n/a
Jet Shapes
 Differential Jet Shape
 ATLAS_2013_I1243871 7000 1.8 -0.20 1.6
Jet Shapes
 Integral Jet Shape
 ATLAS_2013_I1243871 7000 0.39 -0.090 0.30
Identified Particles
 E(KS0)
 ATLAS_2019_I1746286 7000 1.5 0 1.5
Identified Particles
 η(KS0)
 ATLAS_2019_I1746286 7000 0.93 -0.11 0.82
Identified Particles
 pT(KS0)
 ATLAS_2019_I1746286 7000 1.4 +0.10 1.5
Identified Particles
 E(KS0) to E(jet) ratio
 ATLAS_2019_I1746286 7000 2.4 -0.30 2.1
Lepton η
 ATLAS_2019_I1759875 13000 35 +8.0 43
CMS_2018_I1703993 13000 91 -1.0 90
Lepton pT
 ATLAS_2019_I1759875 13000 47 +11 58
CMS_2018_I1703993 13000 190 0 190
CMS_2021_I1901295 13000 16 0 16
Identified Particles
 E(Λ0)
 ATLAS_2019_I1746286 7000 8.6 -1.8 6.8
Identified Particles
 η(Λ0)
 ATLAS_2019_I1746286 7000 0.95 -0.020 0.93
Identified Particles
 pT(Λ0)
 ATLAS_2019_I1746286 7000 9.0 -2.5 6.5
Δφ(lepton,jet)
 ATLAS_2019_I1718132 13000 21 - n/a
Dilepton
 E
 ATLAS_2019_I1759875 13000 40 +8.0 48
Dilepton
 Δη
 CMS_2016_I1430892 8000 n/a - n/a
CMS_2018_I1703993 13000 130 0 130
Dilepton
 Δφ
 ATLAS_2019_I1718132 13000 15 - n/a
ATLAS_2019_I1759875 13000 26* +2.0 28
CMS_2018_I1703993 13000 140 0 140
Dilepton
 HT
 ATLAS_2019_I1759875 13000 40 +8.0 48
Dilepton
 m
 ATLAS_2019_I1759875 13000 37 +5.0 42
CMS_2018_I1703993 13000 150 0 150
Dilepton
 pT
 ATLAS_2019_I1718132 13000 17 - n/a
ATLAS_2019_I1759875 13000 39 +8.0 47
CMS_2018_I1703993 13000 160 -10 150
Dilepton
 y
 ATLAS_2019_I1759875 13000 28 +12 40*
ST(leptons, jets)
 ATLAS_2019_I1718132 13000 n/a - n/a
nch
 ATLAS_2022_I2152933 13000 2.1 +1.1 3.2
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 29 -2.0 27
Jet Multiplicities
 Jet multiplicity
 ATLAS_2014_I1304688 7000 n/a - n/a
ATLAS_2020_I1801434 13000 8.7 -0.50 8.2
CMS_2018_I1703993 13000 150 0 150
sumpt
 ATLAS_2022_I2152933 13000 8.8 -1.7 7.1
Jet Multiplicities
 Subjet multiplicity
 ATLAS_2019_I1750330 13000 n/a - n/a
Pouttop
 ATLAS_2019_I1750330 13000 8.0 -0.30 7.7
ATLAS_2020_I1801434 13000 6.0 -0.20 5.8
ATLAS_2022_I2077575 13000 2.9 -0.20 2.7
Top pT
 ATLAS_2019_I1750330 13000 6.2 +0.100 6.3
ATLAS_2020_I1801434 13000 5.6* +0.20 5.8
ATLAS_2022_I2037744 13000 1.8 +0.30 2.1
ATLAS_2022_I2077575 13000 1.7* -0.20 1.5*
CMS_2018_I1703993 13000 170 +10 180
CMS_2021_I1901295 13000 30 -1.0 29*
top.pt.ttbarRF
 CMS_2018_I1703993 13000 180 0 180
pT ratio
 Top quarks
 ATLAS_2020_I1801434 13000 7.3 +0.60 7.9
Top rapidity
 ATLAS_2019_I1750330 13000 7.9 -0.60 7.3
ATLAS_2020_I1801434 13000 8.1 -0.90 7.2
ATLAS_2022_I2037744 13000 1.1 -0.49 0.61*
ATLAS_2022_I2077575 13000 2.0* +0.10 2.1*
CMS_2018_I1703993 13000 160 0 160
CMS_2021_I1901295 13000 30 -2.0 28
topej.dphi
 ATLAS_2022_I2037744 13000 3.7 -0.30 3.4*
topej.m
 ATLAS_2022_I2037744 13000 1.3 -0.20 1.1
χ(ttbar)
 ATLAS_2019_I1750330 13000 9.1 -0.30 8.8
ATLAS_2020_I1801434 13000 6.5 +3.5 10
ATLAS_2022_I2077575 13000 4.3* -2.2 2.1
Δφ(ttbar)
 ATLAS_2019_I1750330 13000 7.3 -0.30 7.0
ATLAS_2020_I1801434 13000 7.8 -1.5 6.3
ATLAS_2022_I2037744 13000 0.87 +0.63 1.5
ATLAS_2022_I2077575 13000 2.6 -0.20 2.4
CMS_2018_I1703993 13000 250 +10 260
CMS_2021_I1901295 13000 40 -2.0 38
Δy (ttbar)
 CMS_2016_I1430892 8000 n/a - n/a
CMS_2018_I1703993 13000 170 0 170
CMS_2021_I1901295 13000 33 -4.0 29
ttbar HT
 ATLAS_2019_I1750330 13000 6.7 0 6.7
ATLAS_2020_I1801434 13000 6.1 -0.50 5.6
ATLAS_2022_I2037744 13000 1.3 +0.20 1.5
ATLAS_2022_I2077575 13000 1.8 +0.30 2.1*
CMS_2021_I1901295 13000 28 -1.0 27
m(ttbar)
 ATLAS_2019_I1750330 13000 4.8* +0.10 4.9
ATLAS_2020_I1801434 13000 6.5 +0.80 7.3
ATLAS_2022_I2037744 13000 1.1 0 1.1
ATLAS_2022_I2077575 13000 1.3* +0.100 1.4*
CMS_2018_I1703993 13000 200* -20 180
CMS_2021_I1901295 13000 40 -1.0 39
Pcrossttbar
 ATLAS_2020_I1801434 13000 6.9 -0.70 6.2
ttbar pT
 ATLAS_2019_I1750330 13000 7.9 -0.50 7.4
ATLAS_2020_I1801434 13000 5.7 -0.10 5.6
ATLAS_2022_I2037744 13000 1.4 +0.80 2.2
ATLAS_2022_I2077575 13000 1.6* -0.10 1.5
CMS_2018_I1703993 13000 170 0 170
CMS_2021_I1901295 13000 23 -1.0 22
pT ratio
 ttbar to extra jet
 ATLAS_2020_I1801434 13000 5.7 +1.2 6.9
ttbar.thetaStar
 ATLAS_2022_I2077575 13000 3.6* -1.4 2.2
CMS_2021_I1901295 13000 42 -1.0 41
Ttbar rapidity
 ATLAS_2019_I1750330 13000 7.0 -0.20 6.8
ATLAS_2020_I1801434 13000 4.5 -0.30 4.2
ATLAS_2022_I2037744 13000 0.68 +0.52 1.2
ATLAS_2022_I2077575 13000 3.0* -1.0 2.0
CMS_2018_I1703993 13000 140 0 140
CMS_2021_I1901295 13000 38 -2.0 36
Mean rapidity
 ATLAS_2019_I1750330 13000 11 0 11
ATLAS_2020_I1801434 13000 5.8 -0.80 5.0
ATLAS_2022_I2077575 13000 2.3 0 2.3
ttbarej.ht
 ATLAS_2022_I2037744 13000 6.5 -1.8 4.7
ttbarej.m
 CMS_2021_I1901295 13000 28 -1.0 27
pT ratio
 W to b
 ATLAS_2020_I1801434 13000 6.7 -0.30 6.4
pT ratio
 W to top
 ATLAS_2020_I1801434 13000 7.3 -0.80 6.5
Cross sections
 ATLAS_2022_I2037744 13000 0.00086 +0.098 0.099
ATLAS_2022_I2077575 13000 9.2 -1.4 7.8
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.