Generator

Details for Pythia 8.165 default vs. tune-4cx

pp/ppbar → Z+Jet


Observable Reference Energy χ2+5% (default) Δ χ2+5% (tune-4cx)
Underlying event
<pT>
ATLAS_2019_I1736531 13000 4.5* -1.3 3.2*
Underlying event
pT spectrum
ATLAS_2019_I1736531 13000 6.9* -1.6 5.3*
Generalized angularities
LHA λ10.5
CMS_2021_I1920187 13000 3.2 -1.0 2.2
Generalized angularities
LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 1.1 0 1.1
Generalized angularities
Groomed LHA λ10.5
CMS_2021_I1920187 13000 2.1 -0.20 1.9
Generalized angularities
Groomed LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 1.4 -0.100 1.3
Jet mass
Jet mass
CMS_2013_I1224539 7000 n/a - 3.8*
Jet mass
Filtered jet mass
CMS_2013_I1224539 7000 37* -33 4.2*
Jet mass
Pruned jet mass
CMS_2013_I1224539 7000 29* -19 9.7*
Jet mass
Trimmed jet mass
CMS_2013_I1224539 7000 99* -90 9.3*
Generalized angularities
Multiplicity λ00
CMS_2021_I1920187 13000 0.95* -0.16 0.79*
Generalized angularities
Groomed multiplicity λ00
CMS_2021_I1920187 13000 1.3* 0 1.3*
Generalized angularities
Multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 1.3* 0 1.3*
Generalized angularities
Groomed multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 1.1* +0.20 1.3*
Jet pT
ATLAS_2017_I1514251 13000 5.6* - n/a
ATLAS_2020_I1788444 13000 n/a - n/a
ATLAS_2022_I2077570 13000 n/a - n/a
Jet pT ratio
CMS_2020_I1776758 13000 0.96 -0.010 0.95*
CMS_2021_I1847230 8000 n/a - n/a
Generalized angularities
(pDT)2 λ20
CMS_2021_I1920187 13000 1.7 -0.60 1.1
Generalized angularities
(pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 1.0* -0.11 0.89*
Generalized angularities
Groomed (pDT)2 λ20
CMS_2021_I1920187 13000 1.9 -0.40 1.5
Generalized angularities
Groomed (pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 1.0* -0.100 0.90*
Generalized angularities
Thrust λ12
CMS_2021_I1920187 13000 4.6 -1.2 3.4
Generalized angularities
Thrust λ12 (charged only)
CMS_2021_I1920187 13000 1.1 -0.12 0.98
Generalized angularities
Groomed thrust λ12
CMS_2021_I1920187 13000 2.7 -0.60 2.1
Generalized angularities
Groomed thrust λ12 (charged only)
CMS_2021_I1920187 13000 1.2 -0.20 1.0
Generalized angularities
Width λ11
CMS_2021_I1920187 13000 2.6 -0.40 2.2
Generalized angularities
Width λ11 (charged only)
CMS_2021_I1920187 13000 0.86 -0.090 0.77
Generalized angularities
Groomed width λ11
CMS_2021_I1920187 13000 2.1 -0.30 1.8
Generalized angularities
Groomed width λ11 (charged only)
CMS_2021_I1920187 13000 1.3 -0.10 1.2
Jet rapidity
ATLAS_2017_I1514251 13000 16 -4.0 12
ATLAS_2019_I1744201 8000 60* -7.0 53*
ATLAS_2020_I1788444 13000 n/a - 12
Dijet
ΔR
ATLAS_2020_I1788444 13000 n/a - 9.7
CMS_2021_I1847230 8000 n/a - n/a
Dijet
Δφ
ATLAS_2017_I1514251 13000 38 -3.0 35
ATLAS_2020_I1788444 13000 n/a - 6.6
ΔrelpT(jets)
CMS_2021_I1866118 13000 20 -3.0 17
Dijet
Δy
ATLAS_2020_I1788444 13000 n/a - n/a
Jet mass
Dijet mass
ATLAS_2017_I1514251 13000 n/a - n/a
ATLAS_2020_I1788444 13000 n/a - n/a
Dijet
pT
ATLAS_2020_I1788444 13000 n/a - n/a
Dijet
pT ratio to m
ATLAS_2020_I1788444 13000 n/a - n/a
Underlying event
Nch
ATLAS_2019_I1736531 13000 1.8* +0.50 2.3*
Jet Multiplicities
Jet multiplicity
ATLAS_2017_I1514251 13000 n/a - n/a
ATLAS_2020_I1788444 13000 n/a - 37
ATLAS_2022_I2077570 13000 n/a - n/a
njets_njets
ATLAS_2017_I1514251 13000 n/a - n/a
Underlying event
Scalar Σ(pT)
ATLAS_2019_I1736531 13000 2.5* -0.20 2.3*
pT Z
ATLAS_2020_I1788444 13000 n/a - n/a
ATLAS_2022_I2077570 13000 n/a - n/a
CMS_2020_I1837084 13000 18 -2.0 16
pT(Z) to pT(jet) ratio
ATLAS_2022_I2077570 13000 n/a - n/a
Dilepton
pT ratio
CMS_2020_I1776758 13000 0.76 -0.050 0.71
y Z
ATLAS_2020_I1788444 13000 n/a - 11
ΔR (jet, Z)
ATLAS_2020_I1788444 13000 n/a - n/a
ΔRmin (jet, Z)
ATLAS_2022_I2077570 13000 n/a - n/a
Δφ (jet, Z)
ATLAS_2020_I1788444 13000 n/a - 27
CMS_2021_I1866118 13000 16 -4.0 12
pT balance (jet, Z)
CMS_2021_I1866118 13000 20 -8.0 12
Δy (jet, Z)
ATLAS_2020_I1788444 13000 n/a - 12
HT(Z+jets)
ATLAS_2017_I1514251 13000 n/a - n/a
ATLAS_2022_I2077570 13000 n/a - n/a
Δφ (dijet, Z)
CMS_2021_I1866118 13000 n/a - 7.1
pT balance (dijet, Z)
CMS_2021_I1866118 13000 n/a - 9.2

* 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 1430 histograms.