Generator / tune

Details for Pythia 8.315 tune-A2

pp/ppbar → Z+Jet


Observable Reference Energy χ2+5%
Underlying event
 <pT>
 ATLAS_2019_I1736531 13000 3.9*
Underlying event
 pT spectrum
 ATLAS_2019_I1736531 13000 9.1
Generalized angularities
 LHA λ10.5
 CMS_2021_I1920187 13000 1.9
Generalized angularities
 LHA λ10.5 (charged only)
 CMS_2021_I1920187 13000 0.96
Generalized angularities
 Groomed LHA λ10.5
 CMS_2021_I1920187 13000 1.6
Generalized angularities
 Groomed LHA λ10.5 (charged only)
 CMS_2021_I1920187 13000 1.2
Jet mass
 Jet mass
 CMS_2013_I1224539 7000 29
Jet mass
 Filtered jet mass
 CMS_2013_I1224539 7000 310
Jet mass
 Pruned jet mass
 CMS_2013_I1224539 7000 86
Jet mass
 Trimmed jet mass
 CMS_2013_I1224539 7000 220
Generalized angularities
 Multiplicity λ00
 CMS_2021_I1920187 13000 0.90*
Generalized angularities
 Groomed multiplicity λ00
 CMS_2021_I1920187 13000 1.1*
Generalized angularities
 Multiplicity λ00 (charged only)
 CMS_2021_I1920187 13000 2.0*
Generalized angularities
 Groomed multiplicity λ00 (charged only)
 CMS_2021_I1920187 13000 1.4*
Jet pT
 ATLAS_2017_I1514251 13000 n/a
ATLAS_2020_I1788444 13000 78
ATLAS_2022_I2077570 13000 100
Jet pT ratio
 CMS_2020_I1776758 13000 0.58*
CMS_2021_I1847230 8000 n/a
Generalized angularities
 (pDT)2 λ20
 CMS_2021_I1920187 13000 1.1
Generalized angularities
 (pDT)2 λ20 (charged only)
 CMS_2021_I1920187 13000 1.1*
Generalized angularities
 Groomed (pDT)2 λ20
 CMS_2021_I1920187 13000 1.2
Generalized angularities
 Groomed (pDT)2 λ20 (charged only)
 CMS_2021_I1920187 13000 0.98*
Generalized angularities
 Thrust λ12
 CMS_2021_I1920187 13000 2.5
Generalized angularities
 Thrust λ12 (charged only)
 CMS_2021_I1920187 13000 0.86
Generalized angularities
 Groomed thrust λ12
 CMS_2021_I1920187 13000 1.8
Generalized angularities
 Groomed thrust λ12 (charged only)
 CMS_2021_I1920187 13000 1.1
Generalized angularities
 Width λ11
 CMS_2021_I1920187 13000 1.8
Generalized angularities
 Width λ11 (charged only)
 CMS_2021_I1920187 13000 0.76*
Generalized angularities
 Groomed width λ11
 CMS_2021_I1920187 13000 1.6
Generalized angularities
 Groomed width λ11 (charged only)
 CMS_2021_I1920187 13000 1.2
Jet rapidity
 ATLAS_2017_I1514251 13000 19
ATLAS_2019_I1744201 8000 39
ATLAS_2020_I1788444 13000 84
Dijet
 ΔR
 ATLAS_2020_I1788444 13000 61
CMS_2021_I1847230 8000 n/a
Dijet
 Δφ
 ATLAS_2017_I1514251 13000 29
ATLAS_2020_I1788444 13000 49
ΔrelpT(jets)
 CMS_2021_I1866118 13000 20
Dijet
 Δy
 ATLAS_2020_I1788444 13000 57
Jet mass
 Dijet mass
 ATLAS_2017_I1514251 13000 22*
ATLAS_2020_I1788444 13000 54
Dijet
 pT
 ATLAS_2020_I1788444 13000 59
Dijet
 pT ratio to m
 ATLAS_2020_I1788444 13000 55
Underlying event
 Nch
 ATLAS_2019_I1736531 13000 2.0*
Jet Multiplicities
 Jet multiplicity
 ATLAS_2017_I1514251 13000 n/a
ATLAS_2020_I1788444 13000 150
ATLAS_2022_I2077570 13000 n/a
njets_njets
 ATLAS_2017_I1514251 13000 n/a
Underlying event
 Scalar Σ(pT)
 ATLAS_2019_I1736531 13000 1.6*
pT Z
 ATLAS_2020_I1788444 13000 85
ATLAS_2022_I2077570 13000 52
CMS_2020_I1837084 13000 16
pT(Z) to pT(jet) ratio
 ATLAS_2022_I2077570 13000 n/a
Dilepton
 pT ratio
 CMS_2020_I1776758 13000 0.77
y Z
 ATLAS_2020_I1788444 13000 68
ΔR (jet, Z)
 ATLAS_2020_I1788444 13000 280
ΔRmin (jet, Z)
 ATLAS_2022_I2077570 13000 200
Δφ (jet, Z)
 ATLAS_2020_I1788444 13000 370
CMS_2021_I1866118 13000 13
pT balance (jet, Z)
 CMS_2021_I1866118 13000 13
Δy (jet, Z)
 ATLAS_2020_I1788444 13000 110
HT(Z+jets)
 ATLAS_2017_I1514251 13000 n/a
ATLAS_2022_I2077570 13000 130
Δφ (dijet, Z)
 CMS_2021_I1866118 13000 14
pT balance (dijet, Z)
 CMS_2021_I1866118 13000 23

* 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 715 histograms.