Generator / tune

Details for Pythia 6.427 378 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 0.63* - n/a
Transverse Minor
CMS_2011_I886332 7000 2.2 +2.6 4.8
Transverse Thrust
CMS_2011_I886332 7000 2.5 +2.3 4.8
Jets + Veto
Gap frac. vs Veto scale (FB)
ATLAS_2011_I917526 7000 0.48 +1.2 1.7*
Jets + Veto
Gap frac. vs Veto scale (LJ)
ATLAS_2011_I917526 7000 0.70 +1.1 1.8*
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 0.18* +0.69 0.87*
Jets + Veto
Gap fraction vs Δy (LJ)
ATLAS_2011_I917526 7000 0.44* +1.6 2.0*
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 4.8 -0.80 4.0
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 0.20* +0.40 0.60*
Jet Substructure
D2
ATLAS_2019_I1724098 13000 0.29 - n/a
Jet Substructure
Splitting scale d23
ATLAS_2012_I1094564 7000 0.19* +0.55 0.74*
Jet Substructure
Energy correlation ECF2
ATLAS_2019_I1724098 13000 0.39 - n/a
Jet Substructure
Energy correlation ECF3
ATLAS_2019_I1724098 13000 0.24 - n/a
Jet η
CDF_1994_I374155 1800 n/a - n/a
CMS_2021_I1932460 13000 25 +2.0 27
Generalized angularities
LHA λ10.5
ATLAS_2019_I1724098 13000 0.39 - n/a
CMS_2021_I1920187 13000 1.3 -0.54 0.76
Generalized angularities
LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 1.1* +0.100 1.2*
Generalized angularities
Groomed LHA λ10.5
CMS_2021_I1920187 13000 1.3* -0.45 0.85
Generalized angularities
Groomed LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 1.0 -0.11 0.89
Jet mass
Jet mass
ATLAS_2012_I1094564 7000 0.33* +0.020 0.35*
ATLAS_2012_I1119557 7000 9.0 -2.1 6.9
Jet mass
Filtered jet mass
ATLAS_2012_I1094564 7000 0.18* +0.030 0.21*
Generalized angularities
Multiplicity λ00
CMS_2021_I1920187 13000 1.7* +1.9 3.6*
Generalized angularities
Groomed multiplicity λ00
CMS_2021_I1920187 13000 1.5* +1.0 2.5*
Generalized angularities
Multiplicity λ00 (charged only)
ATLAS_2019_I1740909 13000 9.2* +5.8 15*
CMS_2021_I1920187 13000 4.9* +2.0 6.9*
Generalized angularities
Groomed multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 2.0* +1.6 3.6*
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 0.27 - n/a
Jet Shapes
Jet Planar Flow
ATLAS_2012_I1119557 7000 8.5 +8.5 17
Jet pT
ATLAS_2010_I871366 7000 0.85* - n/a
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 35* +3.0 38*
CMS_2021_I1972986 13000 n/a - n/a
Jet pT ratio
CMS_2021_I1847230 [8000..13000] 0.65 +0.75 1.4
Generalized angularities
(pDT)2 λ20
CMS_2021_I1920187 13000 1.8* +0.80 2.6
Generalized angularities
(pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 2.2* +0.90 3.1*
Generalized angularities
Groomed (pDT)2 λ20
CMS_2021_I1920187 13000 1.2* +0.60 1.8*
Generalized angularities
Groomed (pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 1.6* +0.80 2.4*
Jet Substructure
N-subjettiness τ2/τ1
ATLAS_2012_I1094564 7000 0.75* -0.40 0.35*
Jet Substructure
N-subjettiness τ3/τ2
ATLAS_2012_I1094564 7000 0.14* -0.068 0.072*
Generalized angularities
Thrust λ12
CMS_2021_I1920187 13000 2.1 -1.3 0.79
Generalized angularities
Thrust λ12 (charged only)
CMS_2021_I1920187 13000 1.2* 0 1.2*
Generalized angularities
Groomed thrust λ12
CMS_2021_I1920187 13000 1.5 -0.66 0.84
Generalized angularities
Groomed thrust λ12 (charged only)
CMS_2021_I1920187 13000 1.1 -0.24 0.86
Generalized angularities
Width λ11
ATLAS_2012_I1119557 7000 1.1 +2.5 3.6
CMS_2021_I1920187 13000 1.6 -0.74 0.86*
Generalized angularities
Width λ11 (charged only)
CMS_2021_I1920187 13000 1.2* 0 1.2*
Generalized angularities
Groomed width λ11
CMS_2021_I1920187 13000 1.5 -0.54 0.96
Generalized angularities
Groomed width λ11 (charged only)
CMS_2021_I1920187 13000 1.2* -0.40 0.80
Jet Substructure
Momentum fraction z
ATLAS_2019_I1740909 13000 1.7* +1.2 2.9*
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 0.63* - n/a
CMS_2012_I1090423 7000 n/a - n/a
CMS_2015_I1327224 8000 1.5* - n/a
CMS_2017_I1519995 13000 0.61* - n/a
Dijet
ΔR
CDF_1994_I374155 1800 n/a - n/a
CMS_2021_I1847230 [8000..13000] 1.3 +0.100 1.4
Dijet
Δφ
ATLAS_2011_I889546 7000 0.70* +0.70 1.4*
CMS_2011_I885663 7000 1.1* +2.3 3.4*
CMS_2016_I1421646 8000 n/a - n/a
CMS_2019_I1719955 13000 1.4* +1.5 2.9*
CMS_2021_I1932460 13000 19 0 19
Dijet
pT balance
CMS_2021_I1932460 13000 23 +1.0 24
Dijet
Δy
CMS_2021_I1932460 13000 17 +1.0 18
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 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 - n/a
Jet mass
Trimmed dijet mass
CMS_2013_I1224539 7000 n/a - n/a
Jet mass
Three-jet mass
D0_2011_I895662 1960 4.4* - n/a
Dijet
ΔS (jet pairs)
CMS_2021_I1932460 13000 6.6 +1.0 7.6
Jet Shapes
Differential Jet Shape
ATLAS_2011_I882984 7000 0.99 -0.24 0.75
CDF_2005_I682179 1960 2.9* - n/a
Jet Shapes
Integral Jet Shape
ATLAS_2011_I882984 7000 0.068 -0.021 0.047
CDF_2005_I682179 1960 0.29* - 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 1.8* +0.70 2.5*
Jets + Veto
Njet vs Δy (LJ)
ATLAS_2011_I917526 7000 1.2* +2.8 4.0*
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 1.4* +0.80 2.2*
Jet Substructure
Radial profile ρ
ATLAS_2019_I1740909 13000 1.3* +1.1 2.4*
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 3837 histograms.