Generator / tune

Details for Pythia 8.308 CP2-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* +0.100 2.8*
Underlying event
 pT spectrum
 ATLAS_2019_I1736 13000 - n/a
ATLAS_2019_I1736531 13000 5.6 -4.4 1.2
Generalized angularities
 LHA λ10.5
 CMS_2021_I1920187 13000 3.1 -
Generalized angularities
 LHA λ10.5 (charged only)
 CMS_2021_I1920187 13000 1.3 -
Generalized angularities
 Groomed LHA λ10.5
 CMS_2021_I1920187 13000 2.3 -
Generalized angularities
 Groomed LHA λ10.5 (charged only)
 CMS_2021_I1920187 13000 1.5 -
Jet mass
 Jet mass
 CMS_2013_I1224539 7000 26* -
Jet mass
 Filtered jet mass
 CMS_2013_I1224539 7000 83 -
Jet mass
 Pruned jet mass
 CMS_2013_I1224539 7000 59* -
Jet mass
 Trimmed jet mass
 CMS_2013_I1224539 7000 72* -
Generalized angularities
 Multiplicity λ00
 CMS_2021_I1920187 13000 1.8* -
Generalized angularities
 Groomed multiplicity λ00
 CMS_2021_I1920187 13000 1.8* -
Generalized angularities
 Multiplicity λ00 (charged only)
 CMS_2021_I1920187 13000 0.93* -
Generalized angularities
 Groomed multiplicity λ00 (charged only)
 CMS_2021_I1920187 13000 1.0* -
Jet pT
 ATLAS_2020_I1788444 13000 31 -
ATLAS_2022_I2077570 13000 n/a -
Jet pT ratio
 CMS_2021_I1847230 8000 n/a -
Generalized angularities
 (pDT)2 λ20
 CMS_2021_I1920187 13000 2.6 -
Generalized angularities
 (pDT)2 λ20 (charged only)
 CMS_2021_I1920187 13000 1.3* -
Generalized angularities
 Groomed (pDT)2 λ20
 CMS_2021_I1920187 13000 3.0 -
Generalized angularities
 Groomed (pDT)2 λ20 (charged only)
 CMS_2021_I1920187 13000 1.5* -
Generalized angularities
 Thrust λ12
 CMS_2021_I1920187 13000 3.6 -
Generalized angularities
 Thrust λ12 (charged only)
 CMS_2021_I1920187 13000 0.90 -
Generalized angularities
 Groomed thrust λ12
 CMS_2021_I1920187 13000 2.7 -
Generalized angularities
 Groomed thrust λ12 (charged only)
 CMS_2021_I1920187 13000 1.3 -
Generalized angularities
 Width λ11
 CMS_2021_I1920187 13000 2.5 -
Generalized angularities
 Width λ11 (charged only)
 CMS_2021_I1920187 13000 0.94 -
Generalized angularities
 Groomed width λ11
 CMS_2021_I1920187 13000 2.3 -
Generalized angularities
 Groomed width λ11 (charged only)
 CMS_2021_I1920187 13000 1.4 -
Jet rapidity
 ATLAS_2019_I1744201 8000 32 -
ATLAS_2020_I1788444 13000 50 -
Dijet
 ΔR
 ATLAS_2020_I1788444 13000 18 -
CMS_2021_I1847230 8000 n/a -
Dijet
 Δφ
 ATLAS_2020_I1788444 13000 12 -
Dijet
 Δy
 ATLAS_2020_I1788444 13000 16 -
Jet mass
 Dijet mass
 ATLAS_2020_I1788444 13000 n/a -
Dijet
 pT
 ATLAS_2020_I1788444 13000 n/a -
Dijet
 pT ratio to m
 ATLAS_2020_I1788444 13000 12 -
Underlying event
 Nch
 ATLAS_2019_I1736531 13000 1.6* -
Jet Multiplicities
 Jet multiplicity
 ATLAS_2020_I1788444 13000 93 -
ATLAS_2022_I2077570 13000 n/a -
Underlying event
 Scalar Σ(pT)
 ATLAS_2019_I1736531 13000 1.6* -
pT Z
 ATLAS_2020_I1788444 13000 34* -
ATLAS_2022_I2077570 13000 47 -
CMS_2020_I1837084 13000 12 -
pT(Z) to pT(jet) ratio
 ATLAS_2022_I2077570 13000 n/a -
y Z
 ATLAS_2020_I1788444 13000 42 -
ΔR (jet, Z)
 ATLAS_2020_I1788444 13000 95 -
ΔRmin (jet, Z)
 ATLAS_2022_I2077570 13000 200 -
Δφ (jet, Z)
 ATLAS_2020_I1788444 13000 120 -
Δy (jet, Z)
 ATLAS_2020_I1788444 13000 56 -
HT(Z+jets)
 ATLAS_2022_I2077570 13000 82 -

* 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 733 histograms.