Generator / tune

Details for Pythia 6.427 375 vs. 6.428

pp/ppbar → Jets


Observable Reference Energy χ2+5% (6.427) Δ χ2+5% (6.428)
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 0.30* - n/a
Transverse Minor
CMS_2011_I886332 7000 1.7 +2.8 4.5
Transverse Thrust
CMS_2011_I886332 7000 1.7 +2.8 4.5
Jets + Veto
Gap frac. vs Veto scale (FB)
ATLAS_2011_I917526 7000 0.55 +0.65 1.2*
Jets + Veto
Gap frac. vs Veto scale (LJ)
ATLAS_2011_I917526 7000 0.49 +1.0 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 0.21* +1.7 1.9*
Jets + Veto
Gap fraction vs Δy (LJ)
ATLAS_2011_I917526 7000 0.28* +2.6 2.9*
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 1.6 +1.2 2.8
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 0.22* +0.32 0.54*
Jet Substructure
D2
ATLAS_2019_I1724098 13000 n/a - n/a
Jet Substructure
Splitting scale d23
ATLAS_2012_I1094564 7000 0.13* +0.54 0.67*
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 15 +2.0 17
Generalized angularities
LHA λ10.5
ATLAS_2019_I1724098 13000 n/a - n/a
CMS_2021_I1920187 13000 1.6* -0.82 0.78*
Generalized angularities
LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 1.3* -0.20 1.1*
Generalized angularities
Groomed LHA λ10.5
CMS_2021_I1920187 13000 1.4 -0.46 0.94
Generalized angularities
Groomed LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 1.1 -0.16 0.94
Jet mass
Jet mass
ATLAS_2012_I1094564 7000 0.40* +0.16 0.56*
ATLAS_2012_I1119557 7000 8.1 +3.9 12
Jet mass
Filtered jet mass
ATLAS_2012_I1094564 7000 0.16* +0.14 0.30*
Generalized angularities
Multiplicity λ00
CMS_2021_I1920187 13000 1.6* +1.7 3.3*
Generalized angularities
Groomed multiplicity λ00
CMS_2021_I1920187 13000 1.2* +0.80 2.0*
Generalized angularities
Multiplicity λ00 (charged only)
ATLAS_2019_I1740909 13000 8.6* +11 20*
CMS_2021_I1920187 13000 3.5* +3.6 7.1*
Generalized angularities
Groomed multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 1.8* +1.6 3.4*
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 9.2 +8.8 18
Jet pT
ATLAS_2010_I871366 7000 0.41* +0.10 0.51*
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 23 +3.0 26*
CMS_2021_I1972986 13000 n/a - n/a
Jet pT ratio
CMS_2021_I1847230 [8000..13000] 0.64 +0.46 1.1
Generalized angularities
(pDT)2 λ20
CMS_2021_I1920187 13000 2.1 +0.60 2.7
Generalized angularities
(pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 2.5* +1.0 3.5*
Generalized angularities
Groomed (pDT)2 λ20
CMS_2021_I1920187 13000 1.5 +0.50 2.0
Generalized angularities
Groomed (pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 1.7* +0.90 2.6*
Jet Substructure
N-subjettiness τ2/τ1
ATLAS_2012_I1094564 7000 0.64* -0.33 0.31*
Jet Substructure
N-subjettiness τ3/τ2
ATLAS_2012_I1094564 7000 0.25* -0.15 0.10*
Generalized angularities
Thrust λ12
CMS_2021_I1920187 13000 2.6 -1.7 0.94
Generalized angularities
Thrust λ12 (charged only)
CMS_2021_I1920187 13000 1.6* -0.20 1.4*
Generalized angularities
Groomed thrust λ12
CMS_2021_I1920187 13000 1.9 -0.90 1.0
Generalized angularities
Groomed thrust λ12 (charged only)
CMS_2021_I1920187 13000 1.3 -0.30 1.0
Generalized angularities
Width λ11
ATLAS_2012_I1119557 7000 1.1 +1.7 2.8
CMS_2021_I1920187 13000 1.9* -1.0 0.88
Generalized angularities
Width λ11 (charged only)
CMS_2021_I1920187 13000 1.3* -0.30 1.0*
Generalized angularities
Groomed width λ11
CMS_2021_I1920187 13000 1.7* -0.60 1.1*
Generalized angularities
Groomed width λ11 (charged only)
CMS_2021_I1920187 13000 1.3* -0.31 0.99*
Jet Substructure
Momentum fraction z
ATLAS_2019_I1740909 13000 1.7* +3.3 5.0*
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 0.38* - n/a
CMS_2011_I889175 7000 n/a - n/a
CMS_2012_I1090423 7000 0.64* - n/a
CMS_2015_I1327224 8000 1.3* - n/a
CMS_2017_I1519995 13000 0.81* - n/a
Dijet
ΔR
CDF_1994_I374155 1800 n/a - n/a
CMS_2021_I1847230 [8000..13000] 2.0 -0.70 1.3
Dijet
Δφ
ATLAS_2011_I889546 7000 0.72* +1.5 2.2*
CMS_2011_I885663 7000 1.0* +1.4 2.4*
CMS_2016_I1421646 8000 n/a - n/a
CMS_2019_I1719955 13000 1.2* +1.1 2.3*
CMS_2021_I1932460 13000 12 +2.0 14
Dijet
pT balance
CMS_2021_I1932460 13000 13 +2.0 15
Dijet
Δy
CMS_2021_I1932460 13000 10 +1.0 11
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 0.24* - n/a
CMS_2013_I1224539 7000 79* - n/a
Jet mass
Filtered dijet mass
CMS_2013_I1224539 7000 59* - n/a
Jet mass
Pruned dijet mass
CMS_2013_I1224539 7000 120* - n/a
Jet mass
Trimmed dijet mass
CMS_2013_I1224539 7000 51* - n/a
Jet mass
Three-jet mass
D0_2011_I895662 1960 n/a - n/a
Dijet
ΔS (jet pairs)
CMS_2021_I1932460 13000 3.7 +1.6 5.3
Jet Shapes
Differential Jet Shape
ATLAS_2011_I882984 7000 1.1 -0.23 0.87
CDF_2005_I682179 1960 n/a - n/a
Jet Shapes
Integral Jet Shape
ATLAS_2011_I882984 7000 0.081 -0.020 0.061
CDF_2005_I682179 1960 n/a - 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 0.95* +2.6 3.5*
Jets + Veto
Njet vs Δy (LJ)
ATLAS_2011_I917526 7000 1.1* +2.3 3.4*
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 1.8* +0.20 2.0*
Jet Substructure
Radial profile ρ
ATLAS_2019_I1740909 13000 1.5* +2.0 3.5*
Soft-drop
Opening angle rg
ATLAS_2019_I1772062 13000 17* - n/a
Soft-drop
Relative jet mass ρ
ATLAS_2019_I1772062 13000 3,200* - n/a
Soft-drop
Relative pT zg
ATLAS_2019_I1772062 13000 26* - n/a
softfrop.zg
ATLAS_2019_I1772062 13000 1.7 - 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 3837 histograms.