Generator / tune

Details for Pythia 8.308 CP1-CR2 vs. 8.313

pp/ppbar → Jets


Observable Reference Energy χ2+5% (8.308) Δ χ2+5% (8.313)
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 - 1.1*
Transverse Minor
CMS_2011_I886332 7000 0.86 +0.14 1.0
Transverse Thrust
CMS_2011_I886332 7000 1.0 -0.11 0.89
Jets + Veto
Gap frac. vs Veto scale (FB)
ATLAS_2011_I917526 7000 0.74 +0.25 0.99
Jets + Veto
Gap frac. vs Veto scale (LJ)
ATLAS_2011_I917526 7000 1.2 +0.10 1.3
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 0.67* -0.29 0.38*
Jets + Veto
Gap fraction vs Δy (LJ)
ATLAS_2011_I917526 7000 1.1* -0.16 0.94*
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 7.2 -3.8 3.4
Jet Charge
Jet Charge Q
CMS_2017_I1605749 8000 8.0 -0.60 7.4
Jet Charge
Jet Charge Mean
ATLAS_2015_I1393758 8000 n/a - n/a
Jet Charge
Jet Charge QL
CMS_2017_I1605749 8000 23* 0 23*
Jet Charge
Jet Charge RMS
ATLAS_2015_I1393758 8000 n/a - n/a
Jet Charge
Jet Charge QT
CMS_2017_I1605749 8000 16* -1.0 15*
Jet Substructure
C2
ATLAS_2019_I1724098 13000 n/a - n/a
Jet Substructure
Splitting scale d12
ATLAS_2012_I1094564 7000 0.35 +0.010 0.36
Jet Substructure
D2
ATLAS_2019_I1724098 13000 0.31 +0.25 0.56
Jet Substructure
Splitting scale d23
ATLAS_2012_I1094564 7000 0.51 -0.020 0.49
Jet Substructure
Energy correlation ECF2
ATLAS_2019_I1724098 13000 0.70 -0.19 0.51
Jet Substructure
Energy correlation ECF3
ATLAS_2019_I1724098 13000 1.3 -0.55 0.75
Jet η
CDF_1994_I374155 1800 39 +6.0 45
CMS_2021_I1932460 13000 32 -2.0 30
Generalized angularities
LHA λ10.5
ATLAS_2019_I1724098 13000 0.43* -0.13 0.30*
CMS_2021_I1920187 13000 0.74 +0.080 0.82
Generalized angularities
LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 1.1* +0.30 1.4*
Generalized angularities
Groomed LHA λ10.5
CMS_2021_I1920187 13000 0.85 -0.070 0.78*
Generalized angularities
Groomed LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 0.89 +0.090 0.98
Jet mass
Jet mass
ATLAS_2012_I1094564 7000 0.30 -0.010 0.29
ATLAS_2012_I1119557 7000 5.6 -1.9 3.7
Jet mass
Filtered jet mass
ATLAS_2012_I1094564 7000 0.17 +0.0100 0.18
Generalized angularities
Multiplicity λ00
CMS_2021_I1920187 13000 1.3* 0 1.3*
Generalized angularities
Groomed multiplicity λ00
CMS_2021_I1920187 13000 0.99* +0.21 1.2*
Generalized angularities
Multiplicity λ00 (charged only)
ATLAS_2019_I1740909 13000 8.3* +0.60 8.9*
CMS_2021_I1920187 13000 4.5* +0.70 5.2*
Generalized angularities
Groomed multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 1.7* +0.20 1.9*
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 0.64 -0.20 0.44
Jet Shapes
Jet Planar Flow
ATLAS_2012_I1119557 7000 11 +2.0 13
Jet pT
ATLAS_2010_I871366 7000 0.82* +0.48 1.3*
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 43* -4.0 39*
CMS_2021_I1972986 13000 n/a - n/a
Jet pT ratio
CMS_2021_I1847230 [8000..13000] 1.2 +0.10 1.3
Generalized angularities
(pDT)2 λ20
CMS_2021_I1920187 13000 2.1 +0.30 2.4
Generalized angularities
(pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 2.5* +0.20 2.7*
Generalized angularities
Groomed (pDT)2 λ20
CMS_2021_I1920187 13000 1.6* 0 1.6
Generalized angularities
Groomed (pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 1.9* 0 1.9*
Jet Substructure
N-subjettiness τ2/τ1
ATLAS_2012_I1094564 7000 0.44 0 0.44
Jet Substructure
N-subjettiness τ3/τ2
ATLAS_2012_I1094564 7000 0.077 -0.0020 0.075
Generalized angularities
Thrust λ12
CMS_2021_I1920187 13000 0.70 -0.030 0.67
Generalized angularities
Thrust λ12 (charged only)
CMS_2021_I1920187 13000 1.3* +0.100 1.4*
Generalized angularities
Groomed thrust λ12
CMS_2021_I1920187 13000 0.83 -0.030 0.80
Generalized angularities
Groomed thrust λ12 (charged only)
CMS_2021_I1920187 13000 0.76 +0.090 0.85
Generalized angularities
Width λ11
ATLAS_2012_I1119557 7000 1.9 -0.80 1.1
CMS_2021_I1920187 13000 0.76* +0.040 0.80*
Generalized angularities
Width λ11 (charged only)
CMS_2021_I1920187 13000 1.2* 0 1.2*
Generalized angularities
Groomed width λ11
CMS_2021_I1920187 13000 0.91* +0.19 1.1*
Generalized angularities
Groomed width λ11 (charged only)
CMS_2021_I1920187 13000 0.85* +0.090 0.94*
Jet Substructure
Momentum fraction z
ATLAS_2019_I1740909 13000 2.9 +0.20 3.1
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 21 -4.0 17
Coherence
β
CMS_2013_I1265659 7000 2.5 -1.2 1.3
Dijet
χ
ATLAS_2010_I871366 7000 0.79 +0.090 0.88
CMS_2011_I889175 7000 0.74 +0.040 0.78
CMS_2012_I1090423 7000 0.72 -0.080 0.64
CMS_2015_I1327224 8000 1.5 -0.10 1.4
CMS_2017_I1519995 13000 0.93 +0.0100 0.94
Dijet
ΔR
CDF_1994_I374155 1800 n/a - n/a
CMS_2021_I1847230 [8000..13000] 1.1 0 1.1
Dijet
Δφ
ATLAS_2011_I889546 7000 0.78* -0.060 0.72*
CMS_2011_I885663 7000 0.65* +0.35 1.00*
CMS_2016_I1421646 8000 2.1* 0 2.1*
CMS_2019_I1719955 13000 0.80 +0.060 0.86
CMS_2021_I1932460 13000 21 -1.0 20
Dijet
pT balance
CMS_2021_I1932460 13000 26 -1.0 25
Dijet
Δy
CMS_2021_I1932460 13000 24 -3.0 21
CMS_2021_I1963239 2760 n/a - 3.5
Dijet
Δy ratio
CMS_2021_I1963239 2760 n/a - 0.62
Jet mass
Dijet mass
ATLAS_2010_I871366 7000 0.34* +0.12 0.46*
CMS_2013_I1224539 7000 20* - n/a
Jet mass
Filtered dijet mass
CMS_2013_I1224539 7000 15* - n/a
Jet mass
Pruned dijet mass
CMS_2013_I1224539 7000 30* +1.0 31*
Jet mass
Trimmed dijet mass
CMS_2013_I1224539 7000 8.4* -0.40 8.0*
Jet mass
Three-jet mass
D0_2011_I895662 1960 5.0* - n/a
Dijet
ΔS (jet pairs)
CMS_2021_I1932460 13000 9.8 -1.6 8.2
Jet Shapes
Differential Jet Shape
ATLAS_2011_I882984 7000 0.83 +0.040 0.87
CDF_2005_I682179 1960 2.9 -0.10 2.8
Jet Shapes
Integral Jet Shape
ATLAS_2011_I882984 7000 0.061 +0.035 0.096
CDF_2005_I682179 1960 0.13 0 0.13
Lund jet plane
ln(R/ΔR)
ATLAS_2020_I1790256 13000 1.2 +0.10 1.3
Lund jet plane
ln(1/z)
ATLAS_2020_I1790256 13000 1.2 +0.10 1.3
Jet Multiplicities
Jet multiplicity
ATLAS_2011_I917599 7000 n/a - n/a
Jets + Veto
Njet vs Δy (FB)
ATLAS_2011_I917526 7000 1.8* -0.40 1.4*
Jets + Veto
Njet vs Δy (LJ)
ATLAS_2011_I917526 7000 2.5* -0.60 1.9*
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 1.8 +0.100 1.9
Jet Substructure
Radial profile ρ
ATLAS_2019_I1740909 13000 0.56 -0.010 0.55
Soft-drop
Opening angle rg
ATLAS_2019_I1772062 13000 75* -65 9.6*
Soft-drop
Relative jet mass ρ
ATLAS_2019_I1772062 13000 590* -580 11*
Soft-drop
Relative pT zg
ATLAS_2019_I1772062 13000 4.4* +5.3 9.7*
softfrop.zg
ATLAS_2019_I1772062 13000 0.56 +0.27 0.83

* 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.