Generator / tune

Details for Pythia 6.426 z2 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 - n/a
Transverse Minor
CMS_2011_I886332 7000 1.1 +0.20 1.3
Transverse Thrust
CMS_2011_I886332 7000 1.2 -0.100 1.1
Jets + Veto
Gap frac. vs Veto scale (FB)
ATLAS_2011_I917526 7000 0.58 +0.62 1.2
Jets + Veto
Gap frac. vs Veto scale (LJ)
ATLAS_2011_I917526 7000 0.34 +0.21 0.55
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 0.20* -0.040 0.16*
Jets + Veto
Gap fraction vs Δy (LJ)
ATLAS_2011_I917526 7000 0.28* -0.13 0.15*
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 1.4 +1.2 2.6
Jet Charge
Jet Charge Q
CMS_2017_I1605749 8000 6.8* - 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 0.73* -0.16 0.57*
Jet Substructure
D2
ATLAS_2019_I1724098 13000 n/a - n/a
Jet Substructure
Splitting scale d23
ATLAS_2012_I1094564 7000 0.56* -0.15 0.41*
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 12 +3.0 15
Generalized angularities
LHA λ10.5
ATLAS_2019_I1724098 13000 n/a - n/a
CMS_2021_I1920187 13000 3.2 +0.100 3.3
Generalized angularities
LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 1.5* +0.20 1.7
Generalized angularities
Groomed LHA λ10.5
CMS_2021_I1920187 13000 2.7 +0.100 2.8*
Generalized angularities
Groomed LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 1.6 +0.30 1.9
Jet mass
Jet mass
ATLAS_2012_I1094564 7000 0.67* -0.050 0.62*
ATLAS_2012_I1119557 7000 13 +4.0 17
Jet mass
Filtered jet mass
ATLAS_2012_I1094564 7000 0.26* -0.090 0.17*
Generalized angularities
Multiplicity λ00
CMS_2021_I1920187 13000 1.4* +0.10 1.5*
Generalized angularities
Groomed multiplicity λ00
CMS_2021_I1920187 13000 1.4* +0.10 1.5*
Generalized angularities
Multiplicity λ00 (charged only)
ATLAS_2019_I1740909 13000 5.3* +1.6 6.9*
CMS_2021_I1920187 13000 2.3* +0.40 2.7*
Generalized angularities
Groomed multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 1.7* 0 1.7*
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 2.4 -0.80 1.6
Jet pT
ATLAS_2010_I871366 7000 0.48* -0.25 0.23*
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 19 +3.0 22*
CMS_2021_I1972986 13000 n/a - n/a
Jet pT ratio
CMS_2021_I1847230 [8000..13000] 0.93 -0.36 0.57
Generalized angularities
(pDT)2 λ20
CMS_2021_I1920187 13000 1.5 +0.20 1.7
Generalized angularities
(pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 1.7* +0.10 1.8*
Generalized angularities
Groomed (pDT)2 λ20
CMS_2021_I1920187 13000 1.1 0 1.1
Generalized angularities
Groomed (pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 1.3* 0 1.3*
Jet Substructure
N-subjettiness τ2/τ1
ATLAS_2012_I1094564 7000 0.74* -0.060 0.68*
Jet Substructure
N-subjettiness τ3/τ2
ATLAS_2012_I1094564 7000 0.37* +0.010 0.38*
Generalized angularities
Thrust λ12
CMS_2021_I1920187 13000 5.7 +0.30 6.0
Generalized angularities
Thrust λ12 (charged only)
CMS_2021_I1920187 13000 2.6 -0.10 2.5*
Generalized angularities
Groomed thrust λ12
CMS_2021_I1920187 13000 4.0 0 4.0
Generalized angularities
Groomed thrust λ12 (charged only)
CMS_2021_I1920187 13000 2.3 +0.20 2.5
Generalized angularities
Width λ11
ATLAS_2012_I1119557 7000 6.7 +1.4 8.1
CMS_2021_I1920187 13000 3.9* 0 3.9*
Generalized angularities
Width λ11 (charged only)
CMS_2021_I1920187 13000 2.0* +0.20 2.2*
Generalized angularities
Groomed width λ11
CMS_2021_I1920187 13000 3.3* +0.10 3.4*
Generalized angularities
Groomed width λ11 (charged only)
CMS_2021_I1920187 13000 2.1 +0.20 2.3
Jet Substructure
Momentum fraction z
ATLAS_2019_I1740909 13000 1.6* -0.30 1.3*
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 40 - n/a
Coherence
β
CMS_2013_I1265659 7000 n/a - n/a
Dijet
χ
ATLAS_2010_I871366 7000 1.5* - n/a
CMS_2011_I889175 7000 n/a - 0.52*
CMS_2012_I1090423 7000 n/a - 0.94*
CMS_2015_I1327224 8000 2.0* -1.2 0.82*
CMS_2017_I1519995 13000 n/a - 0.48*
Dijet
ΔR
CDF_1994_I374155 1800 n/a - n/a
CMS_2021_I1847230 [8000..13000] 1.3 +0.20 1.5
Dijet
Δφ
ATLAS_2011_I889546 7000 1.3* -0.42 0.88*
CMS_2011_I885663 7000 0.95* +0.45 1.4*
CMS_2016_I1421646 8000 n/a - n/a
CMS_2019_I1719955 13000 1.1* +1.3 2.4*
CMS_2021_I1932460 13000 9.9 +1.1 11
Dijet
pT balance
CMS_2021_I1932460 13000 12 +2.0 14
Dijet
Δy
CMS_2021_I1932460 13000 8.3 +2.7 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 0.085* - 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 n/a - n/a
Dijet
ΔS (jet pairs)
CMS_2021_I1932460 13000 3.7 0 3.7
Jet Shapes
Differential Jet Shape
ATLAS_2011_I882984 7000 3.2 -0.50 2.7
CDF_2005_I682179 1960 n/a - n/a
Jet Shapes
Integral Jet Shape
ATLAS_2011_I882984 7000 0.23 -0.040 0.19
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 1.2* -0.59 0.61*
Jets + Veto
Njet vs Δy (LJ)
ATLAS_2011_I917526 7000 1.0* -0.33 0.67*
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* -0.90 4.3*
Jet Substructure
Radial profile ρ
ATLAS_2019_I1740909 13000 2.0* +0.90 2.9*
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.