Generator / tune

Details for Herwig++ 2.6.3 default vs. 2.7.0

pp/ppbar → Top (tt)


Observable Reference Energy χ2+5% (2.6.3) Δ χ2+5% (2.7.0)
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 - 0.63
B jet
 η
 CMS_2018_I1703993 13000 8.6 +2.4 11
B jet
 pT
 CMS_2018_I1703993 13000 8.4 +2.6 11
bjbj.m
 CMS_2018_I1703993 13000 11 +2.0 13
bjbj.pt
 CMS_2018_I1703993 13000 10 +4.0 14
bjt.dphi
 ATLAS_2022_I2037744 13000 n/a - n/a
ej.pt
 ATLAS_2022_I2037744 13000 4.6* -1.00 3.6*
pT ratio
 Extra jets
 ATLAS_2020_I1801434 13000 5.0 +1.8 6.8*
pT ratio
 Extra to leading jet
 ATLAS_2020_I1801434 13000 5.8 +0.30 6.1
pT ratio
 Extra jet to Top
 ATLAS_2020_I1801434 13000 6.1 0 6.1
ΔR(extra jets)
 ATLAS_2020_I1801434 13000 4.2 +0.20 4.4
ejej.dphi
 ATLAS_2022_I2037744 13000 4.9 -3.0 1.9
ejets.ht
 CMS_2021_I1901295 13000 n/a - n/a
ΔR(extra, leading jet)
 ATLAS_2020_I1801434 13000 4.4 -0.50 3.9
ΔR(top, extra jet)
 ATLAS_2020_I1801434 13000 4.2 +0.60 4.8
Jets + Veto
 Gap frac. vs Veto scale
 ATLAS_2012_I1094568 7000 0.18 -0.020 0.16
Jets + Veto
 Gap frac. vs scalar veto scale
 ATLAS_2012_I1094568 7000 0.18 0 0.18
Jet mass
 Jet mass
 CMS_2017_I1518399 8000 n/a - n/a
CMS_2019_I1764472 13000 0.71 -0.25 0.46
Jet pT
 ATLAS_2014_I1304688 7000 15 -1.0 14
ATLAS_2019_I1718132 13000 n/a - n/a
Dijet
 Δη
 ATLAS_2019_I1718132 13000 n/a - n/a
Dijet
 Δφ
 ATLAS_2019_I1718132 13000 n/a - n/a
Dijet
 HT
 ATLAS_2019_I1718132 13000 n/a - n/a
Jet mass
 Dijet mass
 ATLAS_2019_I1718132 13000 n/a - n/a
Jet Shapes
 Differential Jet Shape
 ATLAS_2013_I1243871 7000 0.90 +0.030 0.93
Jet Shapes
 Integral Jet Shape
 ATLAS_2013_I1243871 7000 0.11 +0.080 0.19
Identified Particles
 E(KS0)
 ATLAS_2019_I1746286 7000 1.4 -0.30 1.1
Identified Particles
 η(KS0)
 ATLAS_2019_I1746286 7000 1.0 -0.33 0.67
Identified Particles
 pT(KS0)
 ATLAS_2019_I1746286 7000 1.1 -0.17 0.93
Identified Particles
 E(KS0) to E(jet) ratio
 ATLAS_2019_I1746286 7000 1.3 0 1.3
Lepton η
 ATLAS_2019_I1759875 13000 12 -2.0 10
CMS_2018_I1703993 13000 4.7 +2.1 6.8
Lepton pT
 ATLAS_2019_I1759875 13000 15 0 15
CMS_2018_I1703993 13000 8.0 +3.0 11
CMS_2021_I1901295 13000 7.5 -2.4 5.1
Identified Particles
 E(Λ0)
 ATLAS_2019_I1746286 7000 3.7 +0.50 4.2
Identified Particles
 η(Λ0)
 ATLAS_2019_I1746286 7000 0.35 +0.35 0.70
Identified Particles
 pT(Λ0)
 ATLAS_2019_I1746286 7000 5.3 +0.80 6.1
Δφ(lepton,jet)
 ATLAS_2019_I1718132 13000 n/a - n/a
Dilepton
 E
 ATLAS_2019_I1759875 13000 13 -2.0 11
Dilepton
 Δη
 CMS_2016_I1430892 8000 n/a - n/a
CMS_2018_I1703993 13000 7.2 +1.1 8.3
Dilepton
 Δφ
 ATLAS_2019_I1718132 13000 n/a - n/a
ATLAS_2019_I1759875 13000 7.8 -0.90 6.9
CMS_2018_I1703993 13000 6.7 +2.4 9.1
Dilepton
 HT
 ATLAS_2019_I1759875 13000 13 -1.0 12
Dilepton
 m
 ATLAS_2019_I1759875 13000 11 -1.0 10
CMS_2018_I1703993 13000 6.6 +3.0 9.6
Dilepton
 pT
 ATLAS_2019_I1718132 13000 n/a - n/a
ATLAS_2019_I1759875 13000 12 0 12
CMS_2018_I1703993 13000 7.7 +3.3 11
Dilepton
 y
 ATLAS_2019_I1759875 13000 9.2 -1.0 8.2
ST(leptons, jets)
 ATLAS_2019_I1718132 13000 n/a - n/a
nch
 ATLAS_2022_I2152933 13000 1.4 +3.3 4.7
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 46 -11 35
Jet Multiplicities
 Jet multiplicity
 ATLAS_2014_I1304688 7000 n/a - n/a
ATLAS_2020_I1801434 13000 7.1 -0.60 6.5
CMS_2018_I1703993 13000 n/a - n/a
sumpt
 ATLAS_2022_I2152933 13000 1.7 +3.2 4.9
Jet Multiplicities
 Subjet multiplicity
 ATLAS_2019_I1750330 13000 n/a - n/a
Pouttop
 ATLAS_2019_I1750330 13000 11 -1.6 9.4
ATLAS_2020_I1801434 13000 5.1* +0.80 5.9
ATLAS_2022_I2077575 13000 2.9* - n/a
Top pT
 ATLAS_2019_I1750330 13000 7.0* -0.80 6.2*
ATLAS_2020_I1801434 13000 4.1 -0.30 3.8
ATLAS_2022_I2037744 13000 3.0* -1.7 1.3*
ATLAS_2022_I2077575 13000 1.6* +0.100 1.7*
CMS_2018_I1703993 13000 16 +2.0 18
CMS_2021_I1901295 13000 21* +4.0 25*
top.pt.ttbarRF
 CMS_2018_I1703993 13000 16 +2.0 18
pT ratio
 Top quarks
 ATLAS_2020_I1801434 13000 5.8 +1.9 7.7
Top rapidity
 ATLAS_2019_I1750330 13000 6.5 -0.70 5.8
ATLAS_2020_I1801434 13000 5.4 0 5.4
ATLAS_2022_I2037744 13000 3.5* -2.0 1.5
ATLAS_2022_I2077575 13000 2.1* +0.10 2.2*
CMS_2018_I1703993 13000 16 +2.0 18
CMS_2021_I1901295 13000 8.8 -0.50 8.3*
topej.dphi
 ATLAS_2022_I2037744 13000 4.1 -0.80 3.3
topej.m
 ATLAS_2022_I2037744 13000 2.9 0 2.9
χ(ttbar)
 ATLAS_2019_I1750330 13000 5.9 -0.10 5.8
ATLAS_2020_I1801434 13000 5.8 -1.2 4.6
ATLAS_2022_I2077575 13000 1.4* +1.1 2.5*
Δφ(ttbar)
 ATLAS_2019_I1750330 13000 9.6 +0.40 10.0
ATLAS_2020_I1801434 13000 8.4* -0.70 7.7*
ATLAS_2022_I2037744 13000 n/a - n/a
ATLAS_2022_I2077575 13000 2.5 +1.4 3.9
CMS_2018_I1703993 13000 44 -4.0 40
CMS_2021_I1901295 13000 27 -2.0 25
Δy (ttbar)
 CMS_2016_I1430892 8000 n/a - n/a
CMS_2018_I1703993 13000 18 +4.0 22
CMS_2021_I1901295 13000 9.5 -1.0 8.5
ttbar HT
 ATLAS_2019_I1750330 13000 5.6 -0.90 4.7
ATLAS_2020_I1801434 13000 4.9 -1.1 3.8
ATLAS_2022_I2037744 13000 2.2 - n/a
ATLAS_2022_I2077575 13000 1.5* +0.90 2.4*
CMS_2021_I1901295 13000 8.4 -0.60 7.8
m(ttbar)
 ATLAS_2019_I1750330 13000 5.7* -0.20 5.5*
ATLAS_2020_I1801434 13000 5.5 -0.80 4.7
ATLAS_2022_I2037744 13000 n/a - n/a
ATLAS_2022_I2077575 13000 1.8* -0.30 1.5*
CMS_2018_I1703993 13000 20 +1.0 21
CMS_2021_I1901295 13000 20* -3.0 17
Pcrossttbar
 ATLAS_2020_I1801434 13000 4.8 -0.50 4.3
ttbar pT
 ATLAS_2019_I1750330 13000 15* -1.0 14*
ATLAS_2020_I1801434 13000 7.1* -0.20 6.9*
ATLAS_2022_I2037744 13000 n/a - n/a
ATLAS_2022_I2077575 13000 2.1* -0.40 1.7*
CMS_2018_I1703993 13000 100 - n/a
CMS_2021_I1901295 13000 24* -17 7.0*
pT ratio
 ttbar to extra jet
 ATLAS_2020_I1801434 13000 5.1 -1.4 3.7
ttbar.thetaStar
 ATLAS_2022_I2077575 13000 1.5* +1.9 3.4*
CMS_2021_I1901295 13000 15 -2.0 13
Ttbar rapidity
 ATLAS_2019_I1750330 13000 6.1 -0.40 5.7
ATLAS_2020_I1801434 13000 3.7 -0.50 3.2*
ATLAS_2022_I2037744 13000 2.3 -0.20 2.1
ATLAS_2022_I2077575 13000 1.9* 0 1.9
CMS_2018_I1703993 13000 16 0 16
CMS_2021_I1901295 13000 13 -1.0 12
Mean rapidity
 ATLAS_2019_I1750330 13000 6.0 -0.30 5.7
ATLAS_2020_I1801434 13000 3.7 -0.10 3.6
ATLAS_2022_I2077575 13000 2.1* -0.10 2.0
ttbarej.ht
 ATLAS_2022_I2037744 13000 3.5 -1.2 2.3
ttbarej.m
 CMS_2021_I1901295 13000 n/a - n/a
pT ratio
 W to b
 ATLAS_2020_I1801434 13000 5.0 -1.1 3.9
pT ratio
 W to top
 ATLAS_2020_I1801434 13000 5.4 -0.50 4.9
Cross sections
 ATLAS_2022_I2037744 13000 17 -11 6.3
ATLAS_2022_I2077575 13000 8.8 +0.50 9.3
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.