Generator / tune

Details for Pythia 6.426 a vs. 6.427

pp/ppbar → Jets


Observable Reference Energy χ2+5% (6.426) Δ χ2+5% (6.427)
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 - 1.5*
Transverse Minor
CMS_2011_I886332 7000 1.4 +0.50 1.9
Transverse Thrust
CMS_2011_I886332 7000 1.5 +0.30 1.8
Jets + Veto
Gap frac. vs Veto scale (FB)
ATLAS_2011_I917526 7000 0.53 -0.27 0.26
Jets + Veto
Gap frac. vs Veto scale (LJ)
ATLAS_2011_I917526 7000 0.34 +0.15 0.49
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 0.14* +0.070 0.21*
Jets + Veto
Gap fraction vs Δy (LJ)
ATLAS_2011_I917526 7000 0.25* +0.28 0.53*
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 9.4 -5.6 3.8
Jet Charge
Jet Charge Q
CMS_2017_I1605749 8000 n/a - 8.5*
Jet Charge
Jet Charge Mean
ATLAS_2015_I1393758 8000 n/a - n/a
Jet Charge
Jet Charge QL
CMS_2017_I1605749 8000 n/a - 20*
Jet Charge
Jet Charge RMS
ATLAS_2015_I1393758 8000 n/a - n/a
Jet Charge
Jet Charge QT
CMS_2017_I1605749 8000 n/a - 13*
Jet Substructure
C2
ATLAS_2019_I1724098 13000 n/a - n/a
Jet Substructure
Splitting scale d12
ATLAS_2012_I1094564 7000 0.17* -0.010 0.16*
Jet Substructure
D2
ATLAS_2019_I1724098 13000 n/a - n/a
Jet Substructure
Splitting scale d23
ATLAS_2012_I1094564 7000 1.0* -0.020 0.98*
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 16 +1.0 17
Generalized angularities
LHA λ10.5
ATLAS_2019_I1724098 13000 n/a - n/a
CMS_2021_I1920187 13000 2.2 +0.20 2.4
Generalized angularities
LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 1.3* 0 1.3
Generalized angularities
Groomed LHA λ10.5
CMS_2021_I1920187 13000 1.6* -0.10 1.5*
Generalized angularities
Groomed LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 1.1* -0.10 1.00
Jet mass
Jet mass
ATLAS_2012_I1094564 7000 1.4* -0.100 1.3*
ATLAS_2012_I1119557 7000 13 -2.0 11
Jet mass
Filtered jet mass
ATLAS_2012_I1094564 7000 0.58* -0.12 0.46*
Generalized angularities
Multiplicity λ00
CMS_2021_I1920187 13000 1.6* -0.30 1.3*
Generalized angularities
Groomed multiplicity λ00
CMS_2021_I1920187 13000 1.4* +0.40 1.8*
Generalized angularities
Multiplicity λ00 (charged only)
ATLAS_2019_I1740909 13000 6.4* +1.3 7.7*
CMS_2021_I1920187 13000 2.0* +1.1 3.1*
Generalized angularities
Groomed multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 1.2* -0.100 1.1*
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 34 -16 18
Jet pT
ATLAS_2010_I871366 7000 0.23* -0.010 0.22*
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 24* +1.0 25*
CMS_2021_I1972986 13000 n/a - n/a
Jet pT ratio
CMS_2021_I1847230 [8000..13000] 1.2 +0.60 1.8
Generalized angularities
(pDT)2 λ20
CMS_2021_I1920187 13000 1.0 +0.10 1.1
Generalized angularities
(pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 1.0* -0.090 0.91*
Generalized angularities
Groomed (pDT)2 λ20
CMS_2021_I1920187 13000 0.96 +0.040 1.0
Generalized angularities
Groomed (pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 0.99* -0.090 0.90*
Jet Substructure
N-subjettiness τ2/τ1
ATLAS_2012_I1094564 7000 2.2* -0.40 1.8*
Jet Substructure
N-subjettiness τ3/τ2
ATLAS_2012_I1094564 7000 0.30* -0.100 0.20*
Generalized angularities
Thrust λ12
CMS_2021_I1920187 13000 4.2 +0.40 4.6
Generalized angularities
Thrust λ12 (charged only)
CMS_2021_I1920187 13000 2.3* +0.10 2.4*
Generalized angularities
Groomed thrust λ12
CMS_2021_I1920187 13000 1.7 +0.20 1.9
Generalized angularities
Groomed thrust λ12 (charged only)
CMS_2021_I1920187 13000 1.2 +0.20 1.4
Generalized angularities
Width λ11
ATLAS_2012_I1119557 7000 2.7 -0.20 2.5
CMS_2021_I1920187 13000 2.4* +0.20 2.6*
Generalized angularities
Width λ11 (charged only)
CMS_2021_I1920187 13000 1.6* -0.10 1.5*
Generalized angularities
Groomed width λ11
CMS_2021_I1920187 13000 1.6 0 1.6
Generalized angularities
Groomed width λ11 (charged only)
CMS_2021_I1920187 13000 1.2* 0 1.2
Jet Substructure
Momentum fraction z
ATLAS_2019_I1740909 13000 4.2* 0 4.2*
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 1.1* - n/a
CMS_2011_I889175 7000 0.87* -0.32 0.55*
CMS_2012_I1090423 7000 n/a - 0.58*
CMS_2015_I1327224 8000 n/a - n/a
CMS_2017_I1519995 13000 1.3* - n/a
Dijet
ΔR
CDF_1994_I374155 1800 n/a - n/a
CMS_2021_I1847230 [8000..13000] 0.74 +0.090 0.83
Dijet
Δφ
ATLAS_2011_I889546 7000 0.90* +0.20 1.1*
CMS_2011_I885663 7000 2.0* -0.50 1.5*
CMS_2016_I1421646 8000 n/a - 5.2*
CMS_2019_I1719955 13000 2.0* -0.20 1.8*
CMS_2021_I1932460 13000 15 0 15
Dijet
pT balance
CMS_2021_I1932460 13000 16 +1.0 17
Dijet
Δy
CMS_2021_I1932460 13000 11 +3.0 14
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 0.17* - n/a
CMS_2013_I1224539 7000 23* - n/a
Jet mass
Filtered dijet mass
CMS_2013_I1224539 7000 13* - n/a
Jet mass
Pruned dijet mass
CMS_2013_I1224539 7000 10* - n/a
Jet mass
Trimmed dijet mass
CMS_2013_I1224539 7000 2.8* - n/a
Jet mass
Three-jet mass
D0_2011_I895662 1960 n/a - n/a
Dijet
ΔS (jet pairs)
CMS_2021_I1932460 13000 4.3 +0.40 4.7
Jet Shapes
Differential Jet Shape
ATLAS_2011_I882984 7000 3.0 -0.40 2.6
CDF_2005_I682179 1960 2.4* +0.60 3.0*
Jet Shapes
Integral Jet Shape
ATLAS_2011_I882984 7000 0.13 -0.020 0.11
CDF_2005_I682179 1960 0.23* +0.24 0.47*
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 0.96* +0.24 1.2*
Jets + Veto
Njet vs Δy (LJ)
ATLAS_2011_I917526 7000 2.2* +0.100 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 1.2* -0.20 1.0*
Jet Substructure
Radial profile ρ
ATLAS_2019_I1740909 13000 4.7* +0.20 4.9*
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.