Generator / tune

Details for Pythia 8.308 CP1-CR2 vs. 8.313

pp/ppbar → Z+Jet


Observable Reference Energy χ2+5% (8.308) Δ χ2+5% (8.313)
Underlying event
 <pT>
 ATLAS_2019_I1736531 13000 2.7* -
Underlying event
 pT spectrum
 ATLAS_2019_I1736531 13000 5.9* -
Generalized angularities
 LHA λ10.5
 CMS_2021_I1920187 13000 2.3 -
Generalized angularities
 LHA λ10.5 (charged only)
 CMS_2021_I1920187 13000 1.1 -
Generalized angularities
 Groomed LHA λ10.5
 CMS_2021_I1920187 13000 1.9 -
Generalized angularities
 Groomed LHA λ10.5 (charged only)
 CMS_2021_I1920187 13000 1.0 -
Jet mass
 Jet mass
 CMS_2013_I1224539 7000 22* -
Jet mass
 Filtered jet mass
 CMS_2013_I1224539 7000 160* -
Jet mass
 Pruned jet mass
 CMS_2013_I1224539 7000 45* -
Jet mass
 Trimmed jet mass
 CMS_2013_I1224539 7000 72 -
Generalized angularities
 Multiplicity λ00
 CMS_2021_I1920187 13000 1.2* -
Generalized angularities
 Groomed multiplicity λ00
 CMS_2021_I1920187 13000 1.2* -
Generalized angularities
 Multiplicity λ00 (charged only)
 CMS_2021_I1920187 13000 0.87* -
Generalized angularities
 Groomed multiplicity λ00 (charged only)
 CMS_2021_I1920187 13000 0.79* -
Jet pT
 ATLAS_2017_I1514251 13000 n/a -
ATLAS_2020_I1788444 13000 n/a -
ATLAS_2022_I2077570 13000 n/a -
Jet pT ratio
 CMS_2020_I1776758 13000 1.1* -
CMS_2021_I1847230 8000 n/a -
Generalized angularities
 (pDT)2 λ20
 CMS_2021_I1920187 13000 1.6 -
Generalized angularities
 (pDT)2 λ20 (charged only)
 CMS_2021_I1920187 13000 0.94* -
Generalized angularities
 Groomed (pDT)2 λ20
 CMS_2021_I1920187 13000 1.9 -
Generalized angularities
 Groomed (pDT)2 λ20 (charged only)
 CMS_2021_I1920187 13000 0.93* -
Generalized angularities
 Thrust λ12
 CMS_2021_I1920187 13000 3.4 -
Generalized angularities
 Thrust λ12 (charged only)
 CMS_2021_I1920187 13000 0.89 -
Generalized angularities
 Groomed thrust λ12
 CMS_2021_I1920187 13000 2.2 -
Generalized angularities
 Groomed thrust λ12 (charged only)
 CMS_2021_I1920187 13000 1.1 -
Generalized angularities
 Width λ11
 CMS_2021_I1920187 13000 2.2* -
Generalized angularities
 Width λ11 (charged only)
 CMS_2021_I1920187 13000 0.78 -
Generalized angularities
 Groomed width λ11
 CMS_2021_I1920187 13000 1.9 -
Generalized angularities
 Groomed width λ11 (charged only)
 CMS_2021_I1920187 13000 1.2 -
Jet rapidity
 ATLAS_2017_I1514251 13000 16 -
ATLAS_2019_I1744201 8000 34 -
ATLAS_2020_I1788444 13000 33 -
Dijet
 ΔR
 ATLAS_2020_I1788444 13000 12 -
CMS_2021_I1847230 8000 n/a -
Dijet
 Δφ
 ATLAS_2017_I1514251 13000 27 -
ATLAS_2020_I1788444 13000 9.7 -
ΔrelpT(jets)
 CMS_2021_I1866118 13000 21 -
Dijet
 Δy
 ATLAS_2020_I1788444 13000 13 -
Jet mass
 Dijet mass
 ATLAS_2017_I1514251 13000 n/a -
ATLAS_2020_I1788444 13000 n/a -
Dijet
 pT
 ATLAS_2020_I1788444 13000 n/a -
Dijet
 pT ratio to m
 ATLAS_2020_I1788444 13000 11 -
Underlying event
 Nch
 ATLAS_2019_I1736531 13000 1.3* -
Jet Multiplicities
 Jet multiplicity
 ATLAS_2017_I1514251 13000 n/a -
ATLAS_2020_I1788444 13000 71 -
ATLAS_2022_I2077570 13000 n/a -
njets_njets
 ATLAS_2017_I1514251 13000 n/a -
Underlying event
 Scalar Σ(pT)
 ATLAS_2019_I1736531 13000 1.2* -
pT Z
 ATLAS_2020_I1788444 13000 27* -
ATLAS_2022_I2077570 13000 48 -
CMS_2020_I1837084 13000 13 -
pT(Z) to pT(jet) ratio
 ATLAS_2022_I2077570 13000 n/a -
Dilepton
 pT ratio
 CMS_2020_I1776758 13000 1.2 -
y Z
 ATLAS_2020_I1788444 13000 31 -
ΔR (jet, Z)
 ATLAS_2020_I1788444 13000 89 -
ΔRmin (jet, Z)
 ATLAS_2022_I2077570 13000 200 -
Δφ (jet, Z)
 ATLAS_2020_I1788444 13000 130 -
CMS_2021_I1866118 13000 12 -
pT balance (jet, Z)
 CMS_2021_I1866118 13000 16 -
Δy (jet, Z)
 ATLAS_2020_I1788444 13000 41 -
HT(Z+jets)
 ATLAS_2017_I1514251 13000 n/a -
ATLAS_2022_I2077570 13000 88 -
Δφ (dijet, Z)
 CMS_2021_I1866118 13000 10 -
pT balance (dijet, Z)
 CMS_2021_I1866118 13000 13 -

* 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.