Generator / tune

Details for Pythia 6.427 345 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 n/a - 2.0*
Transverse Minor
CMS_2011_I886332 7000 1.2 +4.0 5.2
Transverse Thrust
CMS_2011_I886332 7000 1.0 +4.1 5.1
Jets + Veto
Gap frac. vs Veto scale (FB)
ATLAS_2011_I917526 7000 0.53* +0.57 1.1
Jets + Veto
Gap frac. vs Veto scale (LJ)
ATLAS_2011_I917526 7000 0.47 +0.93 1.4
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 0.36* -0.25 0.11*
Jets + Veto
Gap fraction vs Δy (LJ)
ATLAS_2011_I917526 7000 0.81* +0.29 1.1*
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 +4.2 5.8
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 0.62* +1.7 2.3*
Jet Substructure
D2
ATLAS_2019_I1724098 13000 3.5 - n/a
Jet Substructure
Splitting scale d23
ATLAS_2012_I1094564 7000 1.2* +3.0 4.2*
Jet Substructure
Energy correlation ECF2
ATLAS_2019_I1724098 13000 0.66 - n/a
Jet Substructure
Energy correlation ECF3
ATLAS_2019_I1724098 13000 0.44 - n/a
Jet η
CDF_1994_I374155 1800 n/a - n/a
CMS_2021_I1932460 13000 8.2 +1.8 10
Generalized angularities
LHA λ10.5
ATLAS_2019_I1724098 13000 0.55* - n/a
CMS_2021_I1920187 13000 2.0 +1.9 3.9*
Generalized angularities
LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 3.8* +2.4 6.2*
Generalized angularities
Groomed LHA λ10.5
CMS_2021_I1920187 13000 1.6 +1.0 2.6*
Generalized angularities
Groomed LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 2.2 +1.3 3.5*
Jet mass
Jet mass
ATLAS_2012_I1094564 7000 0.31* +0.63 0.94*
ATLAS_2012_I1119557 7000 8.7 +14 23
Jet mass
Filtered jet mass
ATLAS_2012_I1094564 7000 0.16* +0.14 0.30*
Generalized angularities
Multiplicity λ00
CMS_2021_I1920187 13000 9.7* +5.3 15*
Generalized angularities
Groomed multiplicity λ00
CMS_2021_I1920187 13000 5.6* +3.0 8.6*
Generalized angularities
Multiplicity λ00 (charged only)
ATLAS_2019_I1740909 13000 44* +17 61*
CMS_2021_I1920187 13000 17* +6.0 23*
Generalized angularities
Groomed multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 9.2* +4.8 14*
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 0.73 - n/a
Jet Shapes
Jet Planar Flow
ATLAS_2012_I1119557 7000 43 +35 78
Jet pT
ATLAS_2010_I871366 7000 0.27* +0.23 0.50*
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 14* +3.0 17*
CMS_2021_I1972986 13000 n/a - n/a
Jet pT ratio
CMS_2021_I1847230 [8000..13000] 0.67 +0.73 1.4
Generalized angularities
(pDT)2 λ20
CMS_2021_I1920187 13000 8.6 +2.4 11
Generalized angularities
(pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 9.8* +3.2 13*
Generalized angularities
Groomed (pDT)2 λ20
CMS_2021_I1920187 13000 5.8 +1.9 7.7
Generalized angularities
Groomed (pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 6.9* +2.1 9.0*
Jet Substructure
N-subjettiness τ2/τ1
ATLAS_2012_I1094564 7000 2.9* -0.20 2.7*
Jet Substructure
N-subjettiness τ3/τ2
ATLAS_2012_I1094564 7000 0.55* +0.030 0.58*
Generalized angularities
Thrust λ12
CMS_2021_I1920187 13000 1.2 +0.60 1.8
Generalized angularities
Thrust λ12 (charged only)
CMS_2021_I1920187 13000 2.3* +2.0 4.3*
Generalized angularities
Groomed thrust λ12
CMS_2021_I1920187 13000 1.3 +0.40 1.7*
Generalized angularities
Groomed thrust λ12 (charged only)
CMS_2021_I1920187 13000 1.4 +0.50 1.9
Generalized angularities
Width λ11
ATLAS_2012_I1119557 7000 8.6 +22 31
CMS_2021_I1920187 13000 1.2 +1.0 2.2
Generalized angularities
Width λ11 (charged only)
CMS_2021_I1920187 13000 2.8* +2.0 4.8*
Generalized angularities
Groomed width λ11
CMS_2021_I1920187 13000 1.5* +0.50 2.0*
Generalized angularities
Groomed width λ11 (charged only)
CMS_2021_I1920187 13000 1.8* +1.00 2.8*
Jet Substructure
Momentum fraction z
ATLAS_2019_I1740909 13000 12* +3.0 15*
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 0.64* - n/a
CMS_2012_I1090423 7000 0.82* - n/a
CMS_2015_I1327224 8000 n/a - n/a
CMS_2017_I1519995 13000 n/a - n/a
Dijet
ΔR
CDF_1994_I374155 1800 n/a - n/a
CMS_2021_I1847230 [8000..13000] 1.3 -0.43 0.87
Dijet
Δφ
ATLAS_2011_I889546 7000 1.5* -0.10 1.4*
CMS_2011_I885663 7000 0.82* +1.8 2.6*
CMS_2016_I1421646 8000 n/a - n/a
CMS_2019_I1719955 13000 2.1* +0.70 2.8*
CMS_2021_I1932460 13000 6.6 +1.8 8.4
Dijet
pT balance
CMS_2021_I1932460 13000 8.2 +1.4 9.6
Dijet
Δy
CMS_2021_I1932460 13000 6.0 +2.2 8.2
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 n/a - n/a
CMS_2013_I1224539 7000 24* - n/a
Jet mass
Filtered dijet mass
CMS_2013_I1224539 7000 17* - n/a
Jet mass
Pruned dijet mass
CMS_2013_I1224539 7000 45* - n/a
Jet mass
Trimmed dijet mass
CMS_2013_I1224539 7000 14* - n/a
Jet mass
Three-jet mass
D0_2011_I895662 1960 n/a - n/a
Dijet
ΔS (jet pairs)
CMS_2021_I1932460 13000 1.9 +1.1 3.0
Jet Shapes
Differential Jet Shape
ATLAS_2011_I882984 7000 1.7 +1.9 3.6
CDF_2005_I682179 1960 1.6* - n/a
Jet Shapes
Integral Jet Shape
ATLAS_2011_I882984 7000 0.17 +0.38 0.55
CDF_2005_I682179 1960 0.092* - n/a
Lund jet plane
ln(R/ΔR)
ATLAS_2020_I1790256 13000 2.5 - n/a
Lund jet plane
ln(1/z)
ATLAS_2020_I1790256 13000 2.5 - n/a
Jet Multiplicities
Jet multiplicity
ATLAS_2011_I917599 7000 n/a - n/a
Jets + Veto
Njet vs Δy (FB)
ATLAS_2011_I917526 7000 1.1* +1.5 2.6*
Jets + Veto
Njet vs Δy (LJ)
ATLAS_2011_I917526 7000 1.2* +3.6 4.8*
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 5.2* +0.20 5.4*
Jet Substructure
Radial profile ρ
ATLAS_2019_I1740909 13000 7.9* +6.1 14*
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 3826 histograms.