Generator / tune

Details for Pythia 6.427 365 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 - 0.90*
Transverse Minor
 CMS_2011_I886332 7000 1.4 +1.9 3.3
Transverse Thrust
 CMS_2011_I886332 7000 1.2 +1.9 3.1
Jets + Veto
 Gap frac. vs Veto scale (FB)
 ATLAS_2011_I917526 7000 0.45 +0.95 1.4
Jets + Veto
 Gap frac. vs Veto scale (LJ)
 ATLAS_2011_I917526 7000 0.74 +1.9 2.6
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 0.17* +0.37 0.54*
Jets + Veto
 Gap fraction vs Δy (LJ)
 ATLAS_2011_I917526 7000 0.30* +1.1 1.4*
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 2.2 +5.6 7.8
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 1.2* -0.87 0.33*
Jet Substructure
 D2
 ATLAS_2019_I1724098 13000 n/a - n/a
Jet Substructure
 Splitting scale d23
 ATLAS_2012_I1094564 7000 1.5* -1.1 0.40*
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 14 +3.0 17
Generalized angularities
 LHA λ10.5
 ATLAS_2019_I1724098 13000 n/a - n/a
CMS_2021_I1920187 13000 6.4 -3.0 3.4
Generalized angularities
 LHA λ10.5 (charged only)
 CMS_2021_I1920187 13000 3.3* -1.5 1.8*
Generalized angularities
 Groomed LHA λ10.5
 CMS_2021_I1920187 13000 4.7 -2.1 2.6*
Generalized angularities
 Groomed LHA λ10.5 (charged only)
 CMS_2021_I1920187 13000 2.8 -1.1 1.7
Jet mass
 Jet mass
 ATLAS_2012_I1094564 7000 1.8* -1.1 0.69*
ATLAS_2012_I1119557 7000 32 -27 4.8
Jet mass
 Filtered jet mass
 ATLAS_2012_I1094564 7000 0.25* +0.050 0.30*
Generalized angularities
 Multiplicity λ00
 CMS_2021_I1920187 13000 2.3* -0.20 2.1*
Generalized angularities
 Groomed multiplicity λ00
 CMS_2021_I1920187 13000 2.2* -0.20 2.0*
Generalized angularities
 Multiplicity λ00 (charged only)
 ATLAS_2019_I1740909 13000 3.3* -2.4 0.88*
CMS_2021_I1920187 13000 1.4* +1.0 2.4*
Generalized angularities
 Groomed multiplicity λ00 (charged only)
 CMS_2021_I1920187 13000 1.6* +0.70 2.3*
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 2.3 -0.90 1.4
Jet pT
 ATLAS_2010_I871366 7000 0.49* -0.18 0.31*
ATLAS_2011_I917599 7000 n/a - n/a
CMS_2011_I902309 7000 n/a - n/a
CMS_2012_I1087342 7000 1.7* - n/a
CMS_2021_I1932460 13000 22* +3.0 25
CMS_2021_I1972986 13000 n/a - n/a
Jet pT ratio
 CMS_2021_I1847230 [8000..13000] 0.48 +1.3 1.8
Generalized angularities
 (pDT)2 λ20
 CMS_2021_I1920187 13000 1.8 -0.40 1.4*
Generalized angularities
 (pDT)2 λ20 (charged only)
 CMS_2021_I1920187 13000 1.2* +0.10 1.3*
Generalized angularities
 Groomed (pDT)2 λ20
 CMS_2021_I1920187 13000 2.0 -0.40 1.6*
Generalized angularities
 Groomed (pDT)2 λ20 (charged only)
 CMS_2021_I1920187 13000 1.3* +0.100 1.4*
Jet Substructure
 N-subjettiness τ2/τ1
 ATLAS_2012_I1094564 7000 0.77* +0.020 0.79*
Jet Substructure
 N-subjettiness τ3/τ2
 ATLAS_2012_I1094564 7000 0.13* +0.17 0.30*
Generalized angularities
 Thrust λ12
 CMS_2021_I1920187 13000 8.7 -4.5 4.2
Generalized angularities
 Thrust λ12 (charged only)
 CMS_2021_I1920187 13000 4.5 -2.4 2.1*
Generalized angularities
 Groomed thrust λ12
 CMS_2021_I1920187 13000 5.4 -2.7 2.7
Generalized angularities
 Groomed thrust λ12 (charged only)
 CMS_2021_I1920187 13000 3.2 -1.3 1.9
Generalized angularities
 Width λ11
 ATLAS_2012_I1119557 7000 17 -9.5 7.5
CMS_2021_I1920187 13000 6.3* -3.1 3.2*
Generalized angularities
 Width λ11 (charged only)
 CMS_2021_I1920187 13000 3.5 -1.7 1.8*
Generalized angularities
 Groomed width λ11
 CMS_2021_I1920187 13000 4.9 -2.2 2.7*
Generalized angularities
 Groomed width λ11 (charged only)
 CMS_2021_I1920187 13000 3.2 -1.4 1.8
Jet Substructure
 Momentum fraction z
 ATLAS_2019_I1740909 13000 2.7* -1.3 1.4*
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 0.87* - n/a
CMS_2011_I889175 7000 0.66* - n/a
CMS_2012_I1090423 7000 0.81* - n/a
CMS_2015_I1327224 8000 3.0* - n/a
CMS_2017_I1519995 13000 0.53* - n/a
Dijet
 ΔR
 CDF_1994_I374155 1800 n/a - n/a
CMS_2021_I1847230 [8000..13000] 1.7 -0.70 1.0
Dijet
 Δφ
 ATLAS_2011_I889546 7000 1.0* +0.20 1.2*
CMS_2011_I885663 7000 0.89* +1.6 2.5*
CMS_2016_I1421646 8000 n/a - n/a
CMS_2019_I1719955 13000 1.5* +1.1 2.6*
CMS_2021_I1932460 13000 11 +4.0 15
Dijet
 pT balance
 CMS_2021_I1932460 13000 13 +3.0 16
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 0.089* - n/a
CMS_2013_I1224539 7000 84* - n/a
Jet mass
 Filtered dijet mass
 CMS_2013_I1224539 7000 61* - n/a
Jet mass
 Pruned dijet mass
 CMS_2013_I1224539 7000 90* - n/a
Jet mass
 Trimmed dijet mass
 CMS_2013_I1224539 7000 47* - n/a
Jet mass
 Three-jet mass
 D0_2011_I895662 1960 n/a - n/a
Dijet
 ΔS (jet pairs)
 CMS_2021_I1932460 13000 3.2 +1.5 4.7
Jet Shapes
 Differential Jet Shape
 ATLAS_2011_I882984 7000 7.6 -3.6 4.0
CDF_2005_I682179 1960 9.9* - n/a
Jet Shapes
 Integral Jet Shape
 ATLAS_2011_I882984 7000 0.69 -0.24 0.45
CDF_2005_I682179 1960 1.7* - 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 0.71* +1.3 2.0*
Jets + Veto
 Njet vs Δy (LJ)
 ATLAS_2011_I917526 7000 0.82* +1.7 2.5*
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 3.5* -1.8 1.7*
Jet Substructure
 Radial profile ρ
 ATLAS_2019_I1740909 13000 4.7* -2.6 2.1*
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.