Generator / tune

Details for Pythia 8.313 qcdcr0qq1 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 - 12*
Underlying event
 pT spectrum
 ATLAS_2019_I1736531 13000 - 20*
Generalized angularities
 LHA λ10.5
 CMS_2021_I1920187 13000 - 2.6
Generalized angularities
 LHA λ10.5 (charged only)
 CMS_2021_I1920187 13000 - 1.1
Generalized angularities
 Groomed LHA λ10.5
 CMS_2021_I1920187 13000 - 2.1
Generalized angularities
 Groomed LHA λ10.5 (charged only)
 CMS_2021_I1920187 13000 - 1.3
Jet mass
 Jet mass
 CMS_2013_I1224539 7000 - 27
Jet mass
 Filtered jet mass
 CMS_2013_I1224539 7000 - 260
Jet mass
 Pruned jet mass
 CMS_2013_I1224539 7000 - 96
Jet mass
 Trimmed jet mass
 CMS_2013_I1224539 7000 - 260
Generalized angularities
 Multiplicity λ00
 CMS_2021_I1920187 13000 - 1.5*
Generalized angularities
 Groomed multiplicity λ00
 CMS_2021_I1920187 13000 - 1.6*
Generalized angularities
 Multiplicity λ00 (charged only)
 CMS_2021_I1920187 13000 - 0.96*
Generalized angularities
 Groomed multiplicity λ00 (charged only)
 CMS_2021_I1920187 13000 - 0.96*
Jet pT
 ATLAS_2017_I1514251 13000 - n/a
ATLAS_2020_I1788444 13000 - n/a
ATLAS_2022_I2077570 13000 - 110
Jet pT ratio
 CMS_2020_I1776758 13000 - 0.79
CMS_2021_I1847230 8000 - n/a
Generalized angularities
 (pDT)2 λ20
 CMS_2021_I1920187 13000 - 1.7
Generalized angularities
 (pDT)2 λ20 (charged only)
 CMS_2021_I1920187 13000 - 0.97*
Generalized angularities
 Groomed (pDT)2 λ20
 CMS_2021_I1920187 13000 - 2.4
Generalized angularities
 Groomed (pDT)2 λ20 (charged only)
 CMS_2021_I1920187 13000 - 1.1*
Generalized angularities
 Thrust λ12
 CMS_2021_I1920187 13000 - 3.5
Generalized angularities
 Thrust λ12 (charged only)
 CMS_2021_I1920187 13000 - 1.1
Generalized angularities
 Groomed thrust λ12
 CMS_2021_I1920187 13000 - 2.5
Generalized angularities
 Groomed thrust λ12 (charged only)
 CMS_2021_I1920187 13000 - 1.2
Generalized angularities
 Width λ11
 CMS_2021_I1920187 13000 - 2.2
Generalized angularities
 Width λ11 (charged only)
 CMS_2021_I1920187 13000 - 0.84
Generalized angularities
 Groomed width λ11
 CMS_2021_I1920187 13000 - 2.0
Generalized angularities
 Groomed width λ11 (charged only)
 CMS_2021_I1920187 13000 - 1.3
Jet rapidity
 ATLAS_2017_I1514251 13000 - 32
ATLAS_2019_I1744201 8000 - 44
ATLAS_2020_I1788444 13000 - 200
Dijet
 ΔR
 ATLAS_2020_I1788444 13000 - 120
CMS_2021_I1847230 8000 - n/a
Dijet
 Δφ
 ATLAS_2017_I1514251 13000 - 43
ATLAS_2020_I1788444 13000 - 100
ΔrelpT(jets)
 CMS_2021_I1866118 13000 - 52
Dijet
 Δy
 ATLAS_2020_I1788444 13000 - 120
Jet mass
 Dijet mass
 ATLAS_2017_I1514251 13000 - n/a
ATLAS_2020_I1788444 13000 - 83
Dijet
 pT
 ATLAS_2020_I1788444 13000 - 95
Dijet
 pT ratio to m
 ATLAS_2020_I1788444 13000 - 110
Underlying event
 Nch
 ATLAS_2019_I1736531 13000 - 2.0*
Jet Multiplicities
 Jet multiplicity
 ATLAS_2017_I1514251 13000 - n/a
ATLAS_2020_I1788444 13000 - 320
ATLAS_2022_I2077570 13000 - n/a
njets_njets
 ATLAS_2017_I1514251 13000 - n/a
Underlying event
 Scalar Σ(pT)
 ATLAS_2019_I1736531 13000 - 2.4*
pT Z
 ATLAS_2020_I1788444 13000 - 180
ATLAS_2022_I2077570 13000 - 60
CMS_2020_I1837084 13000 - 20
pT(Z) to pT(jet) ratio
 ATLAS_2022_I2077570 13000 - n/a
Dilepton
 pT ratio
 CMS_2020_I1776758 13000 - 0.80
y Z
 ATLAS_2020_I1788444 13000 - 160
ΔR (jet, Z)
 ATLAS_2020_I1788444 13000 - 580
ΔRmin (jet, Z)
 ATLAS_2022_I2077570 13000 - 200
Δφ (jet, Z)
 ATLAS_2020_I1788444 13000 - 700
CMS_2021_I1866118 13000 - 19
pT balance (jet, Z)
 CMS_2021_I1866118 13000 - 27
Δy (jet, Z)
 ATLAS_2020_I1788444 13000 - 250
HT(Z+jets)
 ATLAS_2017_I1514251 13000 - n/a
ATLAS_2022_I2077570 13000 - 140
Δφ (dijet, Z)
 CMS_2021_I1866118 13000 - 15
pT balance (dijet, Z)
 CMS_2021_I1866118 13000 - 17

* 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.