Generator

Details for Pythia 6.427 345 vs. 346

pp/ppbar → Top (tt)


Observable Reference Energy χ2+5% (345) Δ χ2+5% (346)
Asymmetry
 AC vs Mttbar
 CMS_2016_I1430892 8000 0.29 - n/a
Asymmetry
 AC vs pTttbar
 CMS_2016_I1430892 8000 6.8 - n/a
Asymmetry
 AC vs yttbar
 CMS_2016_I1430892 8000 2.7 - n/a
Asymmetry
 ACl vs Mttbar
 CMS_2016_I1430892 8000 1.5 - n/a
Asymmetry
 ACl vs pTttbar
 CMS_2016_I1430892 8000 0.62 - n/a
Asymmetry
 ACl vs yttbar
 CMS_2016_I1430892 8000 0.50 - n/a
Asymmetry
 Energy asymmetry
 ATLAS_2021_I1941095 13000 0.71 -0.13 0.58
B jet
 η
 CMS_2018_I1703993 13000 33 +6.0 39
B jet
 pT
 CMS_2018_I1703993 13000 39 +8.0 47
bjbj.m
 CMS_2018_I1703993 13000 46 +17 63
bjbj.pt
 CMS_2018_I1703993 13000 40 +7.0 47
bjt.dphi
 ATLAS_2022_I2037744 13000 1.9 -0.80 1.1
ej.pt
 ATLAS_2022_I2037744 13000 2.3 +1.4 3.7*
pT ratio
 Extra jets
 ATLAS_2020_I1801434 13000 1.7 +1.4 3.1
pT ratio
 Extra to leading jet
 ATLAS_2020_I1801434 13000 2.8 +1.0 3.8
pT ratio
 Extra jet to Top
 ATLAS_2020_I1801434 13000 3.2 +0.20 3.4
ΔR(extra jets)
 ATLAS_2020_I1801434 13000 1.7 +1.0 2.7
ejej.dphi
 ATLAS_2022_I2037744 13000 0.92 +0.28 1.2
ejets.ht
 CMS_2021_I1901295 13000 13 +1.0 14
ΔR(extra, leading jet)
 ATLAS_2020_I1801434 13000 2.6 +1.9 4.5
ΔR(top, extra jet)
 ATLAS_2020_I1801434 13000 2.3 +1.2 3.5
Jets + Veto
 Gap frac. vs Veto scale
 ATLAS_2012_I1094568 7000 0.046 +0.22 0.27
Jets + Veto
 Gap frac. vs scalar veto scale
 ATLAS_2012_I1094568 7000 0.020 +0.11 0.13
Jet mass
 Jet mass
 CMS_2017_I1518399 8000 2.5 - n/a
CMS_2019_I1764472 13000 1.3 -0.38 0.92
Jet pT
 ATLAS_2014_I1304688 7000 17 -2.0 15
ATLAS_2019_I1718132 13000 n/a - n/a
Dijet
 Δη
 ATLAS_2019_I1718132 13000 n/a - 20
Dijet
 Δφ
 ATLAS_2019_I1718132 13000 n/a - 24
Dijet
 HT
 ATLAS_2019_I1718132 13000 n/a - n/a
Jet mass
 Dijet mass
 ATLAS_2019_I1718132 13000 n/a - 29
Jet Shapes
 Differential Jet Shape
 ATLAS_2013_I1243871 7000 1.9 +0.60 2.5
Jet Shapes
 Integral Jet Shape
 ATLAS_2013_I1243871 7000 0.27 +0.020 0.29
Identified Particles
 E(KS0)
 ATLAS_2019_I1746286 7000 1.6 +0.50 2.1
Identified Particles
 η(KS0)
 ATLAS_2019_I1746286 7000 1.1 +0.40 1.5
Identified Particles
 pT(KS0)
 ATLAS_2019_I1746286 7000 1.8 0 1.8
Identified Particles
 E(KS0) to E(jet) ratio
 ATLAS_2019_I1746286 7000 3.1 -0.10 3.0
Lepton η
 ATLAS_2019_I1759875 13000 24 +4.0 28
CMS_2018_I1703993 13000 20 +5.0 25
Lepton pT
 ATLAS_2019_I1759875 13000 33 +6.0 39
CMS_2018_I1703993 13000 37 +9.0 46
CMS_2021_I1901295 13000 9.1 +3.9 13
Identified Particles
 E(Λ0)
 ATLAS_2019_I1746286 7000 2.4 +0.60 3.0
Identified Particles
 η(Λ0)
 ATLAS_2019_I1746286 7000 0.42 +0.18 0.60
Identified Particles
 pT(Λ0)
 ATLAS_2019_I1746286 7000 3.1 -0.30 2.8
Δφ(lepton,jet)
 ATLAS_2019_I1718132 13000 n/a - 40*
Dilepton
 E
 ATLAS_2019_I1759875 13000 27 +4.0 31
Dilepton
 Δη
 CMS_2016_I1430892 8000 0.91 - n/a
CMS_2018_I1703993 13000 27 +7.0 34
Dilepton
 Δφ
 ATLAS_2019_I1718132 13000 n/a - 22
ATLAS_2019_I1759875 13000 19 +1.0 20
CMS_2018_I1703993 13000 35 +9.0 44
Dilepton
 HT
 ATLAS_2019_I1759875 13000 27 +4.0 31
Dilepton
 m
 ATLAS_2019_I1759875 13000 25 +5.0 30
CMS_2018_I1703993 13000 34 +8.0 42
Dilepton
 pT
 ATLAS_2019_I1718132 13000 n/a - 31
ATLAS_2019_I1759875 13000 28 +3.0 31
CMS_2018_I1703993 13000 31 +8.0 39
Dilepton
 y
 ATLAS_2019_I1759875 13000 19 +4.0 23
ST(leptons, jets)
 ATLAS_2019_I1718132 13000 n/a - n/a
nch
 ATLAS_2022_I2152933 13000 1.2 +1.1 2.3
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 15 0 15
Jet Multiplicities
 Jet multiplicity
 ATLAS_2014_I1304688 7000 n/a - n/a
ATLAS_2020_I1801434 13000 5.8 +1.9 7.7
CMS_2018_I1703993 13000 31 +4.0 35
sumpt
 ATLAS_2022_I2152933 13000 3.3 +0.40 3.7
Jet Multiplicities
 Subjet multiplicity
 ATLAS_2019_I1750330 13000 n/a - n/a
Pouttop
 ATLAS_2019_I1750330 13000 5.9 +0.60 6.5
ATLAS_2020_I1801434 13000 3.4 +2.3 5.7
ATLAS_2022_I2077575 13000 2.2* -0.50 1.7
Top pT
 ATLAS_2019_I1750330 13000 5.2* +0.70 5.9*
ATLAS_2020_I1801434 13000 3.6 +1.3 4.9
ATLAS_2022_I2037744 13000 3.0 -1.6 1.4
ATLAS_2022_I2077575 13000 1.5* -0.20 1.3*
CMS_2018_I1703993 13000 51 +4.0 55
CMS_2021_I1901295 13000 15* +2.0 17*
top.pt.ttbarRF
 CMS_2018_I1703993 13000 50 +4.0 54
pT ratio
 Top quarks
 ATLAS_2020_I1801434 13000 4.2 +1.4 5.6
Top rapidity
 ATLAS_2019_I1750330 13000 6.0 +0.30 6.3
ATLAS_2020_I1801434 13000 4.1 +1.3 5.4
ATLAS_2022_I2037744 13000 1.7 -0.30 1.4
ATLAS_2022_I2077575 13000 1.7* 0 1.7*
CMS_2018_I1703993 13000 46 +6.0 52
CMS_2021_I1901295 13000 16 +1.0 17
topej.dphi
 ATLAS_2022_I2037744 13000 2.3 +0.60 2.9
topej.m
 ATLAS_2022_I2037744 13000 0.69 - n/a
χ(ttbar)
 ATLAS_2019_I1750330 13000 6.4 +0.30 6.7
ATLAS_2020_I1801434 13000 4.9 +0.100 5.0
ATLAS_2022_I2077575 13000 2.1* 0 2.1*
Δφ(ttbar)
 ATLAS_2019_I1750330 13000 7.1 -1.5 5.6
ATLAS_2020_I1801434 13000 5.7 +0.70 6.4
ATLAS_2022_I2037744 13000 1.8 - n/a
ATLAS_2022_I2077575 13000 3.2* +0.100 3.3
CMS_2018_I1703993 13000 71 +10 81
CMS_2021_I1901295 13000 25 0 25
Δy (ttbar)
 CMS_2016_I1430892 8000 1.0 - n/a
CMS_2018_I1703993 13000 51 +6.0 57
CMS_2021_I1901295 13000 16 +2.0 18
ttbar HT
 ATLAS_2019_I1750330 13000 4.7 +0.30 5.0
ATLAS_2020_I1801434 13000 2.8 +1.7 4.5
ATLAS_2022_I2037744 13000 1.7 - n/a
ATLAS_2022_I2077575 13000 2.3* -0.20 2.1*
CMS_2021_I1901295 13000 16 0 16
m(ttbar)
 ATLAS_2019_I1750330 13000 4.3 +0.70 5.0
ATLAS_2020_I1801434 13000 2.9 +2.9 5.8
ATLAS_2022_I2037744 13000 1.9 +1.0 2.9
ATLAS_2022_I2077575 13000 1.6* -0.30 1.3*
CMS_2018_I1703993 13000 60 +5.0 65
CMS_2021_I1901295 13000 21 +1.0 22*
Pcrossttbar
 ATLAS_2020_I1801434 13000 3.9 +2.0 5.9
ttbar pT
 ATLAS_2019_I1750330 13000 6.0 +0.40 6.4
ATLAS_2020_I1801434 13000 3.6 +1.9 5.5
ATLAS_2022_I2037744 13000 0.93 +2.3 3.2
ATLAS_2022_I2077575 13000 2.3* -0.30 2.0*
CMS_2018_I1703993 13000 48 +6.0 54
CMS_2021_I1901295 13000 15 +1.0 16
pT ratio
 ttbar to extra jet
 ATLAS_2020_I1801434 13000 3.1 +5.0 8.1
ttbar.thetaStar
 ATLAS_2022_I2077575 13000 2.2* 0 2.2*
CMS_2021_I1901295 13000 22 +1.0 23
Ttbar rapidity
 ATLAS_2019_I1750330 13000 5.5 +0.100 5.6
ATLAS_2020_I1801434 13000 2.6 +0.60 3.2*
ATLAS_2022_I2037744 13000 0.90 +0.20 1.1
ATLAS_2022_I2077575 13000 1.6 +0.100 1.7
CMS_2018_I1703993 13000 42 +6.0 48
CMS_2021_I1901295 13000 19 +2.0 21
Mean rapidity
 ATLAS_2019_I1750330 13000 7.7 +0.30 8.0
ATLAS_2020_I1801434 13000 3.3 +1.0 4.3
ATLAS_2022_I2077575 13000 1.9 +0.60 2.5*
ttbarej.ht
 ATLAS_2022_I2037744 13000 1.5 -0.40 1.1
ttbarej.m
 CMS_2021_I1901295 13000 17 +1.0 18
pT ratio
 W to b
 ATLAS_2020_I1801434 13000 4.0 +1.0 5.0
pT ratio
 W to top
 ATLAS_2020_I1801434 13000 3.9 +1.6 5.5
Cross sections
 ATLAS_2022_I2037744 13000 4.8 +2.1 6.9
ATLAS_2022_I2077575 13000 7.8 -2.0 5.8
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.