Generator

Details for Pythia 8.165 tune-4cx vs. tune-A2

pp/ppbar → Jets


Observable Reference Energy χ2+5% (tune-4cx) Δ χ2+5% (tune-A2)
Jet Multiplicities
R32 vs HT
ATLAS_2011_I917599 7000 n/a - n/a
CMS_2011_I912560 7000 n/a - n/a
Jet Multiplicities
R32 vs pT
ATLAS_2011_I917599 7000 n/a - 0.48*
Transverse Minor
CMS_2011_I886332 7000 0.65 +0.25 0.90
Transverse Thrust
CMS_2011_I886332 7000 1.0 +0.20 1.2
Jets + Veto
Gap frac. vs Veto scale (FB)
ATLAS_2011_I917526 7000 0.55 +0.15 0.70
Jets + Veto
Gap frac. vs Veto scale (LJ)
ATLAS_2011_I917526 7000 0.77 +0.73 1.5
Jets + Veto
Gap fraction vs Δy
CMS_2012_I1102908 7000 n/a - n/a
Jets + Veto
Gap fraction vs Δy (FB)
ATLAS_2011_I917526 7000 0.19* +0.39 0.58*
Jets + Veto
Gap fraction vs Δy (LJ)
ATLAS_2011_I917526 7000 0.45* +0.85 1.3*
Jets + Veto
Gap fraction vs pT (FB)
ATLAS_2011_I917526 7000 n/a - n/a
Jets + Veto
Gap fraction vs pT (LJ)
ATLAS_2011_I917526 7000 n/a - n/a
HT(jets)
ATLAS_2011_I917599 7000 n/a - n/a
ET
CDF_1994_I374155 1800 n/a - n/a
Jet Shapes
Jet Angularity
ATLAS_2012_I1119557 7000 1.8 -0.94 0.86
Jet Charge
Jet Charge Q
CMS_2017_I1605749 8000 n/a - n/a
Jet Charge
Jet Charge Mean
ATLAS_2015_I1393758 8000 n/a - n/a
Jet Charge
Jet Charge QL
CMS_2017_I1605749 8000 n/a - n/a
Jet Charge
Jet Charge RMS
ATLAS_2015_I1393758 8000 n/a - n/a
Jet Charge
Jet Charge QT
CMS_2017_I1605749 8000 n/a - n/a
Jet Substructure
C2
ATLAS_2019_I1724098 13000 n/a - n/a
Jet Substructure
Splitting scale d12
ATLAS_2012_I1094564 7000 0.32* +0.14 0.46*
Jet Substructure
D2
ATLAS_2019_I1724098 13000 n/a - n/a
Jet Substructure
Splitting scale d23
ATLAS_2012_I1094564 7000 0.43* +0.20 0.63*
Jet Substructure
Energy correlation ECF2
ATLAS_2019_I1724098 13000 n/a - n/a
Jet Substructure
Energy correlation ECF3
ATLAS_2019_I1724098 13000 n/a - n/a
Jet η
CDF_1994_I374155 1800 n/a - n/a
CMS_2021_I1932460 13000 23 +7.0 30
Generalized angularities
LHA λ10.5
ATLAS_2019_I1724098 13000 n/a - n/a
CMS_2021_I1920187 13000 0.78 +0.050 0.83
Generalized angularities
LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 1.3* +0.100 1.4*
Generalized angularities
Groomed LHA λ10.5
CMS_2021_I1920187 13000 0.83 +0.010 0.84
Generalized angularities
Groomed LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 0.90 +0.100 1.0
Jet mass
Jet mass
ATLAS_2012_I1094564 7000 0.59* -0.19 0.40*
ATLAS_2012_I1119557 7000 8.8 -0.20 8.6
Jet mass
Filtered jet mass
ATLAS_2012_I1094564 7000 0.20* -0.050 0.15*
Generalized angularities
Multiplicity λ00
CMS_2021_I1920187 13000 3.0* +0.90 3.9*
Generalized angularities
Groomed multiplicity λ00
CMS_2021_I1920187 13000 2.2* +0.20 2.4*
Generalized angularities
Multiplicity λ00 (charged only)
ATLAS_2019_I1740909 13000 24* -10 14*
CMS_2021_I1920187 13000 7.2* +1.3 8.5*
Generalized angularities
Groomed multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 3.5* +0.80 4.3*
Jet Shapes
< Nch > (Central)
ATLAS_2016_I1419070 8000 n/a - n/a
ATLAS_2019_I1740909 13000 n/a - n/a
Jet Substructure
Subjet multiplicity
ATLAS_2019_I1724098 13000 n/a - n/a
Jet Shapes
Jet Planar Flow
ATLAS_2012_I1119557 7000 9.0 +12 21
Jet pT
ATLAS_2010_I871366 7000 0.88* +0.080 0.96*
ATLAS_2011_I917599 7000 n/a - n/a
CMS_2011_I902309 7000 n/a - n/a
CMS_2012_I1087342 7000 n/a - n/a
CMS_2021_I1932460 13000 32* +9.0 41*
CMS_2021_I1972986 13000 n/a - n/a
Jet pT ratio
CMS_2021_I1847230 [8000..13000] 1.0 +0.20 1.2
Generalized angularities
(pDT)2 λ20
CMS_2021_I1920187 13000 2.4 +0.80 3.2
Generalized angularities
(pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 3.5* +0.70 4.2*
Generalized angularities
Groomed (pDT)2 λ20
CMS_2021_I1920187 13000 2.0 +0.20 2.2
Generalized angularities
Groomed (pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 2.6* +0.50 3.1*
Jet Substructure
N-subjettiness τ2/τ1
ATLAS_2012_I1094564 7000 0.69* +0.030 0.72*
Jet Substructure
N-subjettiness τ3/τ2
ATLAS_2012_I1094564 7000 0.16* -0.083 0.077*
Generalized angularities
Thrust λ12
CMS_2021_I1920187 13000 0.93 -0.23 0.70
Generalized angularities
Thrust λ12 (charged only)
CMS_2021_I1920187 13000 2.0* -0.30 1.7*
Generalized angularities
Groomed thrust λ12
CMS_2021_I1920187 13000 0.99 -0.21 0.78
Generalized angularities
Groomed thrust λ12 (charged only)
CMS_2021_I1920187 13000 0.82 +0.030 0.85
Generalized angularities
Width λ11
ATLAS_2012_I1119557 7000 2.7 -0.20 2.5
CMS_2021_I1920187 13000 0.84 -0.11 0.73
Generalized angularities
Width λ11 (charged only)
CMS_2021_I1920187 13000 1.4* -0.100 1.3*
Generalized angularities
Groomed width λ11
CMS_2021_I1920187 13000 1.0 -0.15 0.85
Generalized angularities
Groomed width λ11 (charged only)
CMS_2021_I1920187 13000 0.88 +0.030 0.91*
Jet Substructure
Momentum fraction z
ATLAS_2019_I1740909 13000 2.8* 0 2.8*
Jet Shapes
< Nch Difference > (Central-Fwd)
ATLAS_2016_I1419070 8000 n/a - n/a
Jet Shapes
< Nch > (Central+Fwd)
ATLAS_2016_I1419070 8000 n/a - n/a
Coherence
α
CDF_1994_I374155 1800 n/a - n/a
Coherence
β
CMS_2013_I1265659 7000 n/a - n/a
Dijet
χ
ATLAS_2010_I871366 7000 n/a - n/a
CMS_2011_I889175 7000 0.66* -0.22 0.44*
CMS_2012_I1090423 7000 1.1* -0.17 0.93*
CMS_2015_I1327224 8000 1.4* - n/a
CMS_2017_I1519995 13000 0.77* +0.11 0.88*
Dijet
ΔR
CDF_1994_I374155 1800 n/a - n/a
CMS_2021_I1847230 [8000..13000] 0.77 +0.33 1.1
Dijet
Δφ
ATLAS_2011_I889546 7000 0.28* +0.29 0.57*
CMS_2011_I885663 7000 0.56* +0.11 0.67*
CMS_2016_I1421646 8000 n/a - n/a
CMS_2019_I1719955 13000 0.85* -0.030 0.82*
CMS_2021_I1932460 13000 16 +4.0 20
Dijet
pT balance
CMS_2021_I1932460 13000 19 +7.0 26
Dijet
Δy
CMS_2021_I1932460 13000 16 +5.0 21
CMS_2021_I1963239 2760 n/a - n/a
Dijet
Δy ratio
CMS_2021_I1963239 2760 n/a - n/a
Jet mass
Dijet mass
ATLAS_2010_I871366 7000 0.43* - n/a
CMS_2013_I1224539 7000 n/a - n/a
Jet mass
Filtered dijet mass
CMS_2013_I1224539 7000 n/a - n/a
Jet mass
Pruned dijet mass
CMS_2013_I1224539 7000 n/a - 11*
Jet mass
Trimmed dijet mass
CMS_2013_I1224539 7000 n/a - 2.3*
Jet mass
Three-jet mass
D0_2011_I895662 1960 n/a - 1.8*
Dijet
ΔS (jet pairs)
CMS_2021_I1932460 13000 6.2 +2.1 8.3
Jet Shapes
Differential Jet Shape
ATLAS_2011_I882984 7000 0.78 +0.16 0.94
CDF_2005_I682179 1960 2.7* - n/a
Jet Shapes
Integral Jet Shape
ATLAS_2011_I882984 7000 0.082 -0.027 0.055
CDF_2005_I682179 1960 0.17* - n/a
Lund jet plane
ln(R/ΔR)
ATLAS_2020_I1790256 13000 n/a - n/a
Lund jet plane
ln(1/z)
ATLAS_2020_I1790256 13000 n/a - n/a
Jet Multiplicities
Jet multiplicity
ATLAS_2011_I917599 7000 n/a - n/a
Jets + Veto
Njet vs Δy (FB)
ATLAS_2011_I917526 7000 1.3* +0.100 1.4*
Jets + Veto
Njet vs Δy (LJ)
ATLAS_2011_I917526 7000 0.72* +1.6 2.3*
Jets + Veto
Njet vs pT (FB)
ATLAS_2011_I917526 7000 n/a - n/a
Jets + Veto
Njet vs pT (LJ)
ATLAS_2011_I917526 7000 n/a - n/a
Jet Multiplicities
Ratios of jet multiplicity
ATLAS_2011_I917599 7000 n/a - n/a
Jet Substructure
Relative pT
ATLAS_2019_I1740909 13000 2.6* -0.80 1.8*
Jet Substructure
Radial profile ρ
ATLAS_2019_I1740909 13000 2.8* +0.20 3.0*
Soft-drop
Opening angle rg
ATLAS_2019_I1772062 13000 n/a - n/a
Soft-drop
Relative jet mass ρ
ATLAS_2019_I1772062 13000 n/a - n/a
Soft-drop
Relative pT zg
ATLAS_2019_I1772062 13000 n/a - n/a
softfrop.zg
ATLAS_2019_I1772062 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 3838 histograms.