Generator / tune

Details for Pythia 8.313 tune-AZ vs. 8.315

pp/ppbar → Z+Jet


Observable Reference Energy χ2+5% (8.313) Δ χ2+5% (8.315)
Underlying event
 <pT>
 ATLAS_2019_I1736531 13000 - 15*
Underlying event
 pT spectrum
 ATLAS_2019_I1736531 13000 - 11*
Generalized angularities
 LHA λ10.5
 CMS_2021_I1920187 13000 - 6.4
Generalized angularities
 LHA λ10.5 (charged only)
 CMS_2021_I1920187 13000 - 2.8
Generalized angularities
 Groomed LHA λ10.5
 CMS_2021_I1920187 13000 - 3.5
Generalized angularities
 Groomed LHA λ10.5 (charged only)
 CMS_2021_I1920187 13000 - 2.4
Jet mass
 Jet mass
 CMS_2013_I1224539 7000 - 98
Jet mass
 Filtered jet mass
 CMS_2013_I1224539 7000 - 93
Jet mass
 Pruned jet mass
 CMS_2013_I1224539 7000 - 150
Jet mass
 Trimmed jet mass
 CMS_2013_I1224539 7000 - 300
Generalized angularities
 Multiplicity λ00
 CMS_2021_I1920187 13000 - 2.2*
Generalized angularities
 Groomed multiplicity λ00
 CMS_2021_I1920187 13000 - 1.9*
Generalized angularities
 Multiplicity λ00 (charged only)
 CMS_2021_I1920187 13000 - 0.91*
Generalized angularities
 Groomed multiplicity λ00 (charged only)
 CMS_2021_I1920187 13000 - 1.00*
Jet pT
 ATLAS_2017_I1514251 13000 - n/a
ATLAS_2020_I1788444 13000 - 100
ATLAS_2022_I2077570 13000 - 84
Jet pT ratio
 CMS_2020_I1776758 13000 - 0.91*
CMS_2021_I1847230 8000 - n/a
Generalized angularities
 (pDT)2 λ20
 CMS_2021_I1920187 13000 - 3.2
Generalized angularities
 (pDT)2 λ20 (charged only)
 CMS_2021_I1920187 13000 - 1.6*
Generalized angularities
 Groomed (pDT)2 λ20
 CMS_2021_I1920187 13000 - 3.3
Generalized angularities
 Groomed (pDT)2 λ20 (charged only)
 CMS_2021_I1920187 13000 - 1.7*
Generalized angularities
 Thrust λ12
 CMS_2021_I1920187 13000 - 12
Generalized angularities
 Thrust λ12 (charged only)
 CMS_2021_I1920187 13000 - 4.8
Generalized angularities
 Groomed thrust λ12
 CMS_2021_I1920187 13000 - 4.2
Generalized angularities
 Groomed thrust λ12 (charged only)
 CMS_2021_I1920187 13000 - 2.7
Generalized angularities
 Width λ11
 CMS_2021_I1920187 13000 - 6.4
Generalized angularities
 Width λ11 (charged only)
 CMS_2021_I1920187 13000 - 2.4
Generalized angularities
 Groomed width λ11
 CMS_2021_I1920187 13000 - 3.5
Generalized angularities
 Groomed width λ11 (charged only)
 CMS_2021_I1920187 13000 - 2.6
Jet rapidity
 ATLAS_2017_I1514251 13000 - 25
ATLAS_2019_I1744201 8000 - 36
ATLAS_2020_I1788444 13000 - 140
Dijet
 ΔR
 ATLAS_2020_I1788444 13000 - 160
CMS_2021_I1847230 8000 - n/a
Dijet
 Δφ
 ATLAS_2017_I1514251 13000 - 75
ATLAS_2020_I1788444 13000 - 130
ΔrelpT(jets)
 CMS_2021_I1866118 13000 - 36
Dijet
 Δy
 ATLAS_2020_I1788444 13000 - 150
Jet mass
 Dijet mass
 ATLAS_2017_I1514251 13000 - n/a
ATLAS_2020_I1788444 13000 - 130
Dijet
 pT
 ATLAS_2020_I1788444 13000 - 130
Dijet
 pT ratio to m
 ATLAS_2020_I1788444 13000 - 140
Underlying event
 Nch
 ATLAS_2019_I1736531 13000 - 58*
Jet Multiplicities
 Jet multiplicity
 ATLAS_2017_I1514251 13000 - n/a
ATLAS_2020_I1788444 13000 - 380
ATLAS_2022_I2077570 13000 - n/a
njets_njets
 ATLAS_2017_I1514251 13000 - n/a
Underlying event
 Scalar Σ(pT)
 ATLAS_2019_I1736531 13000 - 46*
pT Z
 ATLAS_2020_I1788444 13000 - 240
ATLAS_2022_I2077570 13000 - 48
CMS_2020_I1837084 13000 - 11
pT(Z) to pT(jet) ratio
 ATLAS_2022_I2077570 13000 - n/a
Dilepton
 pT ratio
 CMS_2020_I1776758 13000 - 2.5
y Z
 ATLAS_2020_I1788444 13000 - 130
ΔR (jet, Z)
 ATLAS_2020_I1788444 13000 - 690
ΔRmin (jet, Z)
 ATLAS_2022_I2077570 13000 - 210
Δφ (jet, Z)
 ATLAS_2020_I1788444 13000 - 880
CMS_2021_I1866118 13000 - 52
pT balance (jet, Z)
 CMS_2021_I1866118 13000 - 63
Δy (jet, Z)
 ATLAS_2020_I1788444 13000 - 190
HT(Z+jets)
 ATLAS_2017_I1514251 13000 - n/a
ATLAS_2022_I2077570 13000 - 110
Δφ (dijet, Z)
 CMS_2021_I1866118 13000 - 61
pT balance (dijet, Z)
 CMS_2021_I1866118 13000 - 65

* 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.