Generator / tune

Details for Pythia 6.427 379 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 - n/a
Transverse Minor
CMS_2011_I886332 7000 1.3 +3.4 4.7
Transverse Thrust
CMS_2011_I886332 7000 1.3 +3.0 4.3
Jets + Veto
Gap frac. vs Veto scale (FB)
ATLAS_2011_I917526 7000 0.44 +1.7 2.1*
Jets + Veto
Gap frac. vs Veto scale (LJ)
ATLAS_2011_I917526 7000 0.95 +0.45 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 0.21* +0.34 0.55*
Jets + Veto
Gap fraction vs Δy (LJ)
ATLAS_2011_I917526 7000 0.26* +1.0 1.3*
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 2.3 +0.70 3.0
Jet Charge
Jet Charge Q
CMS_2017_I1605749 8000 3.8* - n/a
Jet Charge
Jet Charge Mean
ATLAS_2015_I1393758 8000 n/a - n/a
Jet Charge
Jet Charge QL
CMS_2017_I1605749 8000 18* - 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 0.25* +0.37 0.62*
Jet Substructure
D2
ATLAS_2019_I1724098 13000 n/a - n/a
Jet Substructure
Splitting scale d23
ATLAS_2012_I1094564 7000 0.11* +0.62 0.73*
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 28 +4.0 32
Generalized angularities
LHA λ10.5
ATLAS_2019_I1724098 13000 n/a - n/a
CMS_2021_I1920187 13000 1.3 -0.31 0.99
Generalized angularities
LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 1.1* +0.20 1.3*
Generalized angularities
Groomed LHA λ10.5
CMS_2021_I1920187 13000 1.2* -0.24 0.96*
Generalized angularities
Groomed LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 1.1 -0.12 0.98*
Jet mass
Jet mass
ATLAS_2012_I1094564 7000 0.37* -0.11 0.26*
ATLAS_2012_I1119557 7000 11 -5.2 5.8
Jet mass
Filtered jet mass
ATLAS_2012_I1094564 7000 0.18* +0.040 0.22*
Generalized angularities
Multiplicity λ00
CMS_2021_I1920187 13000 1.9* +1.7 3.6*
Generalized angularities
Groomed multiplicity λ00
CMS_2021_I1920187 13000 1.2* +1.1 2.3*
Generalized angularities
Multiplicity λ00 (charged only)
ATLAS_2019_I1740909 13000 n/a - 18*
CMS_2021_I1920187 13000 4.3* +2.6 6.9*
Generalized angularities
Groomed multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 2.2* +1.6 3.8*
Jet Shapes
< Nch > (Central)
ATLAS_2016_I1419070 8000 n/a - n/a
ATLAS_2019_I1740909 13000 - n/a
Jet Substructure
Subjet multiplicity
ATLAS_2019_I1724098 13000 n/a - n/a
Jet Shapes
Jet Planar Flow
ATLAS_2012_I1119557 7000 4.2 +8.8 13
Jet pT
ATLAS_2010_I871366 7000 2.1* -0.70 1.4*
ATLAS_2011_I917599 7000 n/a - n/a
CMS_2011_I902309 7000 n/a - n/a
CMS_2012_I1087342 7000 n/a - 1.1*
CMS_2021_I1932460 13000 37* +8.0 45*
CMS_2021_I1972986 13000 n/a - n/a
Jet pT ratio
CMS_2021_I1847230 [8000..13000] 0.51 +0.99 1.5
Generalized angularities
(pDT)2 λ20
CMS_2021_I1920187 13000 2.3 +0.60 2.9
Generalized angularities
(pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 2.5* +1.2 3.7*
Generalized angularities
Groomed (pDT)2 λ20
CMS_2021_I1920187 13000 1.5 +0.70 2.2
Generalized angularities
Groomed (pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 2.0* +0.60 2.6*
Jet Substructure
N-subjettiness τ2/τ1
ATLAS_2012_I1094564 7000 0.50* -0.27 0.23*
Jet Substructure
N-subjettiness τ3/τ2
ATLAS_2012_I1094564 7000 0.14* -0.078 0.062*
Generalized angularities
Thrust λ12
CMS_2021_I1920187 13000 2.3 -1.00 1.3
Generalized angularities
Thrust λ12 (charged only)
CMS_2021_I1920187 13000 1.3* 0 1.3*
Generalized angularities
Groomed thrust λ12
CMS_2021_I1920187 13000 1.7 -0.60 1.1
Generalized angularities
Groomed thrust λ12 (charged only)
CMS_2021_I1920187 13000 1.1 -0.10 1.00
Generalized angularities
Width λ11
ATLAS_2012_I1119557 7000 0.95 +2.1 3.0
CMS_2021_I1920187 13000 1.5 -0.57 0.93*
Generalized angularities
Width λ11 (charged only)
CMS_2021_I1920187 13000 1.2* 0 1.2*
Generalized angularities
Groomed width λ11
CMS_2021_I1920187 13000 1.4 -0.40 1.0
Generalized angularities
Groomed width λ11 (charged only)
CMS_2021_I1920187 13000 1.2 -0.26 0.94*
Jet Substructure
Momentum fraction z
ATLAS_2019_I1740909 13000 3.2* +1.1 4.3*
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 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 0.90* - n/a
CMS_2012_I1090423 7000 0.57* - 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] 1.4 +0.10 1.5
Dijet
Δφ
ATLAS_2011_I889546 7000 1.3* +0.40 1.7*
CMS_2011_I885663 7000 1.2* +1.4 2.6*
CMS_2016_I1421646 8000 n/a - n/a
CMS_2019_I1719955 13000 1.1* +1.5 2.6*
CMS_2021_I1932460 13000 20 +2.0 22
Dijet
pT balance
CMS_2021_I1932460 13000 25 +4.0 29
Dijet
Δy
CMS_2021_I1932460 13000 19 +2.0 21
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 41* - n/a
Jet mass
Filtered dijet mass
CMS_2013_I1224539 7000 30* - n/a
Jet mass
Pruned dijet mass
CMS_2013_I1224539 7000 52* - n/a
Jet mass
Trimmed dijet mass
CMS_2013_I1224539 7000 24* - n/a
Jet mass
Three-jet mass
D0_2011_I895662 1960 1.9* - n/a
Dijet
ΔS (jet pairs)
CMS_2021_I1932460 13000 7.6 +0.30 7.9
Jet Shapes
Differential Jet Shape
ATLAS_2011_I882984 7000 1.2 -0.59 0.61
CDF_2005_I682179 1960 n/a - n/a
Jet Shapes
Integral Jet Shape
ATLAS_2011_I882984 7000 0.078 -0.032 0.046
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 0.93* +2.2 3.1*
Jets + Veto
Njet vs Δy (LJ)
ATLAS_2011_I917526 7000 0.83* +3.9 4.7*
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 2.3* 0 2.3*
Jet Substructure
Radial profile ρ
ATLAS_2019_I1740909 13000 0.93* +2.3 3.2*
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 3743 histograms.