Generator

Details for Pythia 8.165 tune-4cx vs. tune-A2

pp/ppbar → Z+Jet


Observable Reference Energy χ2+5% (tune-4cx) Δ χ2+5% (tune-A2)
Underlying event
<pT>
ATLAS_2019_I1736531 13000 3.2* -1.8 1.4*
Underlying event
pT spectrum
ATLAS_2019_I1736531 13000 5.3* -1.2 4.1*
Generalized angularities
LHA λ10.5
CMS_2021_I1920187 13000 2.2 +0.40 2.6
Generalized angularities
LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 1.1 -0.13 0.97
Generalized angularities
Groomed LHA λ10.5
CMS_2021_I1920187 13000 1.9 +0.10 2.0
Generalized angularities
Groomed LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 1.3 -0.20 1.1
Jet mass
Jet mass
CMS_2013_I1224539 7000 3.8* - n/a
Jet mass
Filtered jet mass
CMS_2013_I1224539 7000 4.2* - n/a
Jet mass
Pruned jet mass
CMS_2013_I1224539 7000 9.7* - n/a
Jet mass
Trimmed jet mass
CMS_2013_I1224539 7000 9.3* - n/a
Generalized angularities
Multiplicity λ00
CMS_2021_I1920187 13000 0.79* +0.31 1.1
Generalized angularities
Groomed multiplicity λ00
CMS_2021_I1920187 13000 1.3* +0.20 1.5*
Generalized angularities
Multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 1.3* +0.20 1.5*
Generalized angularities
Groomed multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 1.3* 0 1.3*
Jet pT
ATLAS_2017_I1514251 13000 n/a - n/a
ATLAS_2020_I1788444 13000 n/a - n/a
ATLAS_2022_I2077570 13000 n/a - 72
Jet pT ratio
CMS_2020_I1776758 13000 0.95* +0.75 1.7
CMS_2021_I1847230 8000 n/a - n/a
Generalized angularities
(pDT)2 λ20
CMS_2021_I1920187 13000 1.1 +0.50 1.6
Generalized angularities
(pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 0.89* -0.020 0.87*
Generalized angularities
Groomed (pDT)2 λ20
CMS_2021_I1920187 13000 1.5 +0.60 2.1
Generalized angularities
Groomed (pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 0.90* +0.020 0.92*
Generalized angularities
Thrust λ12
CMS_2021_I1920187 13000 3.4 -0.30 3.1
Generalized angularities
Thrust λ12 (charged only)
CMS_2021_I1920187 13000 0.98 -0.13 0.85
Generalized angularities
Groomed thrust λ12
CMS_2021_I1920187 13000 2.1 +0.10 2.2
Generalized angularities
Groomed thrust λ12 (charged only)
CMS_2021_I1920187 13000 1.0 0 1.0
Generalized angularities
Width λ11
CMS_2021_I1920187 13000 2.2 +0.100 2.3
Generalized angularities
Width λ11 (charged only)
CMS_2021_I1920187 13000 0.77 +0.040 0.81
Generalized angularities
Groomed width λ11
CMS_2021_I1920187 13000 1.8 +0.100 1.9
Generalized angularities
Groomed width λ11 (charged only)
CMS_2021_I1920187 13000 1.2 0 1.2
Jet rapidity
ATLAS_2017_I1514251 13000 12 +8.0 20
ATLAS_2019_I1744201 8000 53* - n/a
ATLAS_2020_I1788444 13000 12 - n/a
Dijet
ΔR
ATLAS_2020_I1788444 13000 9.7 - n/a
CMS_2021_I1847230 8000 n/a - n/a
Dijet
Δφ
ATLAS_2017_I1514251 13000 35 +17 52
ATLAS_2020_I1788444 13000 6.6 - n/a
ΔrelpT(jets)
CMS_2021_I1866118 13000 17 -7.0 10
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 2.3* -0.30 2.0*
Jet Multiplicities
Jet multiplicity
ATLAS_2017_I1514251 13000 n/a - n/a
ATLAS_2020_I1788444 13000 37 - n/a
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 2.3* -0.70 1.6*
pT Z
ATLAS_2020_I1788444 13000 n/a - n/a
ATLAS_2022_I2077570 13000 n/a - 50
CMS_2020_I1837084 13000 16 +1.0 17
pT(Z) to pT(jet) ratio
ATLAS_2022_I2077570 13000 n/a - n/a
Dilepton
pT ratio
CMS_2020_I1776758 13000 0.71 -0.57 0.14*
y Z
ATLAS_2020_I1788444 13000 11 - n/a
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 27 - n/a
CMS_2021_I1866118 13000 12 0 12
pT balance (jet, Z)
CMS_2021_I1866118 13000 12 +1.0 13
Δy (jet, Z)
ATLAS_2020_I1788444 13000 12 - n/a
HT(Z+jets)
ATLAS_2017_I1514251 13000 n/a - n/a
ATLAS_2022_I2077570 13000 n/a - 96
Δφ (dijet, Z)
CMS_2021_I1866118 13000 7.1 +4.9 12
pT balance (dijet, Z)
CMS_2021_I1866118 13000 9.2 +1.8 11

* 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.