Generator / tune

Details for Pythia 8.308 tune-A14-NNPDF2.3LO vs. 8.313

pp/ppbar → Top (tt)


Observable Reference Energy χ2+5% (8.308) Δ χ2+5% (8.313)
Asymmetry
 AC vs Mttbar
 CMS_2016_I1430892 8000 0.99 +1.6 2.6
Asymmetry
 AC vs pTttbar
 CMS_2016_I1430892 8000 6.5 +2.3 8.8
Asymmetry
 AC vs yttbar
 CMS_2016_I1430892 8000 1.5 +2.3 3.8
Asymmetry
 ACl vs Mttbar
 CMS_2016_I1430892 8000 3.7 -1.3 2.4
Asymmetry
 ACl vs pTttbar
 CMS_2016_I1430892 8000 1.3 -0.69 0.61
Asymmetry
 ACl vs yttbar
 CMS_2016_I1430892 8000 4.1 -1.2 2.9
Asymmetry
 Energy asymmetry
 ATLAS_2021_I1941095 13000 0.60 -0.17 0.43
B jet
 η
 CMS_2018_I1703993 13000 12 -2.3 9.7
B jet
 pT
 CMS_2018_I1703993 13000 16 -5.0 11
bjbj.m
 CMS_2018_I1703993 13000 19 -7.0 12
bjbj.pt
 CMS_2018_I1703993 13000 15 -4.0 11
bjt.dphi
 ATLAS_2022_I2037744 13000 0.98 -0.20 0.78
ej.pt
 ATLAS_2022_I2037744 13000 1.9 0 1.9*
pT ratio
 Extra jets
 ATLAS_2020_I1801434 13000 2.0 +0.60 2.6
pT ratio
 Extra to leading jet
 ATLAS_2020_I1801434 13000 2.1 +0.50 2.6
pT ratio
 Extra jet to Top
 ATLAS_2020_I1801434 13000 1.9 +1.3 3.2
ΔR(extra jets)
 ATLAS_2020_I1801434 13000 1.5 +0.60 2.1
ejej.dphi
 ATLAS_2022_I2037744 13000 0.99 +1.0 2.0
ejets.ht
 CMS_2021_I1901295 13000 8.6 -0.30 8.3
ΔR(extra, leading jet)
 ATLAS_2020_I1801434 13000 2.2 +0.100 2.3
ΔR(top, extra jet)
 ATLAS_2020_I1801434 13000 1.6 +0.40 2.0
Jets + Veto
 Gap frac. vs Veto scale
 ATLAS_2012_I1094568 7000 0.16 -0.050 0.11
Jets + Veto
 Gap frac. vs scalar veto scale
 ATLAS_2012_I1094568 7000 0.065 -0.045 0.020
Jet mass
 Jet mass
 CMS_2017_I1518399 8000 4.5 +0.20 4.7
CMS_2019_I1764472 13000 0.52 +0.45 0.97
Jet pT
 ATLAS_2014_I1304688 7000 4.2 -0.10 4.1
ATLAS_2019_I1718132 13000 2.1* +0.30 2.4*
Dijet
 Δη
 ATLAS_2019_I1718132 13000 2.5 +1.0 3.5
Dijet
 Δφ
 ATLAS_2019_I1718132 13000 2.8 +1.3 4.1
Dijet
 HT
 ATLAS_2019_I1718132 13000 1.8 +1.6 3.4
Jet mass
 Dijet mass
 ATLAS_2019_I1718132 13000 3.0 +1.9 4.9
Jet Shapes
 Differential Jet Shape
 ATLAS_2013_I1243871 7000 1.2 -0.100 1.1
Jet Shapes
 Integral Jet Shape
 ATLAS_2013_I1243871 7000 0.15 0 0.15
Identified Particles
 E(KS0)
 ATLAS_2019_I1746286 7000 1.9 +0.20 2.1
Identified Particles
 η(KS0)
 ATLAS_2019_I1746286 7000 1.0 +0.10 1.1
Identified Particles
 pT(KS0)
 ATLAS_2019_I1746286 7000 1.7 +0.10 1.8
Identified Particles
 E(KS0) to E(jet) ratio
 ATLAS_2019_I1746286 7000 2.8 +0.80 3.6
Lepton η
 ATLAS_2019_I1759875 13000 11 -2.9 8.1
CMS_2018_I1703993 13000 8.0 -2.2 5.8
Lepton pT
 ATLAS_2019_I1759875 13000 15 -4.0 11
CMS_2018_I1703993 13000 16 -6.0 10.0
CMS_2021_I1901295 13000 3.6 +0.20 3.8
Identified Particles
 E(Λ0)
 ATLAS_2019_I1746286 7000 4.4 +0.100 4.5
Identified Particles
 η(Λ0)
 ATLAS_2019_I1746286 7000 0.59 +0.040 0.63
Identified Particles
 pT(Λ0)
 ATLAS_2019_I1746286 7000 4.8 +0.10 4.9
Δφ(lepton,jet)
 ATLAS_2019_I1718132 13000 3.9 +2.4 6.3*
Dilepton
 E
 ATLAS_2019_I1759875 13000 14 -5.0 9.0
Dilepton
 Δη
 CMS_2016_I1430892 8000 0.91 -0.44 0.47
CMS_2018_I1703993 13000 10 -2.1 7.9
Dilepton
 Δφ
 ATLAS_2019_I1718132 13000 3.9 +1.7 5.6*
ATLAS_2019_I1759875 13000 10* -2.9 7.1
CMS_2018_I1703993 13000 16 -5.0 11
Dilepton
 HT
 ATLAS_2019_I1759875 13000 13 -3.2 9.8
Dilepton
 m
 ATLAS_2019_I1759875 13000 12 -2.8 9.2
CMS_2018_I1703993 13000 14 -4.6 9.4
Dilepton
 pT
 ATLAS_2019_I1718132 13000 4.6 -0.40 4.2
ATLAS_2019_I1759875 13000 14 -5.6 8.4
CMS_2018_I1703993 13000 12 -3.7 8.3
Dilepton
 y
 ATLAS_2019_I1759875 13000 8.4 -0.50 7.9*
ST(leptons, jets)
 ATLAS_2019_I1718132 13000 n/a - n/a
nch
 ATLAS_2022_I2152933 13000 1.8 +2.0 3.8
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 12 0 12
Jet Multiplicities
 Jet multiplicity
 ATLAS_2014_I1304688 7000 n/a - n/a
ATLAS_2020_I1801434 13000 2.5 +0.30 2.8
CMS_2018_I1703993 13000 11 -3.0 8.0
sumpt
 ATLAS_2022_I2152933 13000 5.4 +1.7 7.1
Jet Multiplicities
 Subjet multiplicity
 ATLAS_2019_I1750330 13000 n/a - n/a
Pouttop
 ATLAS_2019_I1750330 13000 3.2 -0.30 2.9
ATLAS_2020_I1801434 13000 1.8 +1.00 2.8*
ATLAS_2022_I2077575 13000 3.6 +1.8 5.4*
Top pT
 ATLAS_2019_I1750330 13000 2.7* -0.10 2.6
ATLAS_2020_I1801434 13000 2.4 -0.20 2.2
ATLAS_2022_I2037744 13000 0.91 +0.29 1.2
ATLAS_2022_I2077575 13000 2.8* -0.20 2.6*
CMS_2018_I1703993 13000 23 -4.0 19
CMS_2021_I1901295 13000 8.4* 0 8.4*
top.pt.ttbarRF
 CMS_2018_I1703993 13000 23 -5.0 18
pT ratio
 Top quarks
 ATLAS_2020_I1801434 13000 3.1 +0.50 3.6
Top rapidity
 ATLAS_2019_I1750330 13000 2.7 +0.100 2.8
ATLAS_2020_I1801434 13000 2.3 +0.40 2.7
ATLAS_2022_I2037744 13000 0.75* +3.5 4.2*
ATLAS_2022_I2077575 13000 2.9* -0.10 2.8*
CMS_2018_I1703993 13000 17 -3.0 14
CMS_2021_I1901295 13000 7.2 +0.30 7.5
topej.dphi
 ATLAS_2022_I2037744 13000 2.2* -0.10 2.1
topej.m
 ATLAS_2022_I2037744 13000 1.2 0 1.2
χ(ttbar)
 ATLAS_2019_I1750330 13000 2.9 +0.30 3.2
ATLAS_2020_I1801434 13000 3.5 -0.90 2.6
ATLAS_2022_I2077575 13000 3.6 +1.4 5.0*
Δφ(ttbar)
 ATLAS_2019_I1750330 13000 3.3 -0.20 3.1
ATLAS_2020_I1801434 13000 2.0 +0.80 2.8
ATLAS_2022_I2037744 13000 0.66 -0.050 0.61
ATLAS_2022_I2077575 13000 4.0 -0.20 3.8
CMS_2018_I1703993 13000 26 -3.0 23
CMS_2021_I1901295 13000 14 -2.0 12
Δy (ttbar)
 CMS_2016_I1430892 8000 0.43 -0.26 0.17
CMS_2018_I1703993 13000 16 -2.0 14
CMS_2021_I1901295 13000 6.5 -0.20 6.3
ttbar HT
 ATLAS_2019_I1750330 13000 2.5 +0.10 2.6
ATLAS_2020_I1801434 13000 1.8 +1.3 3.1
ATLAS_2022_I2037744 13000 n/a - 1.9
ATLAS_2022_I2077575 13000 5.9* -2.2 3.7
CMS_2021_I1901295 13000 6.7 +0.50 7.2
m(ttbar)
 ATLAS_2019_I1750330 13000 1.7 +0.50 2.2*
ATLAS_2020_I1801434 13000 2.4 0 2.4
ATLAS_2022_I2037744 13000 0.52 +0.88 1.4
ATLAS_2022_I2077575 13000 2.5* +0.10 2.6*
CMS_2018_I1703993 13000 22 -5.0 17
CMS_2021_I1901295 13000 8.9 +0.70 9.6
Pcrossttbar
 ATLAS_2020_I1801434 13000 2.4 -0.10 2.3
ttbar pT
 ATLAS_2019_I1750330 13000 2.9* -0.10 2.8
ATLAS_2020_I1801434 13000 2.3* +0.30 2.6*
ATLAS_2022_I2037744 13000 1.6 -0.60 1.0
ATLAS_2022_I2077575 13000 2.4 +0.20 2.6
CMS_2018_I1703993 13000 16 -1.0 15
CMS_2021_I1901295 13000 8.3 -0.60 7.7
pT ratio
 ttbar to extra jet
 ATLAS_2020_I1801434 13000 1.7 +0.70 2.4
ttbar.thetaStar
 ATLAS_2022_I2077575 13000 3.4 +0.20 3.6
CMS_2021_I1901295 13000 9.3 +0.60 9.9
Ttbar rapidity
 ATLAS_2019_I1750330 13000 3.1 -0.40 2.7
ATLAS_2020_I1801434 13000 2.3 -0.60 1.7
ATLAS_2022_I2037744 13000 1.5 -0.50 1.0
ATLAS_2022_I2077575 13000 3.3 +2.3 5.6*
CMS_2018_I1703993 13000 17 -3.0 14
CMS_2021_I1901295 13000 8.4 +0.60 9.0
Mean rapidity
 ATLAS_2019_I1750330 13000 4.1 0 4.1
ATLAS_2020_I1801434 13000 1.7 +0.10 1.8
ATLAS_2022_I2077575 13000 3.2 +2.4 5.6*
ttbarej.ht
 ATLAS_2022_I2037744 13000 0.55 +0.060 0.61
ttbarej.m
 CMS_2021_I1901295 13000 7.3 +0.90 8.2
pT ratio
 W to b
 ATLAS_2020_I1801434 13000 2.3 -0.60 1.7
pT ratio
 W to top
 ATLAS_2020_I1801434 13000 3.2 -1.0 2.2
Cross sections
 ATLAS_2022_I2037744 13000 1.2 -1.2 0.015
ATLAS_2022_I2077575 13000 26 -3.0 23
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.