Generator / tune

Details for Pythia 6.427 349 vs. 6.428

pp/ppbar → Z+Jet


Observable Reference Energy χ2+5% (6.427) Δ χ2+5% (6.428)
Underlying event
<pT>
ATLAS_2019_I1736531 13000 3.9* -2.4 1.5*
Underlying event
pT spectrum
ATLAS_2019_I1736531 13000 6.0* -2.4 3.6*
Generalized angularities
LHA λ10.5
CMS_2021_I1920187 13000 1.1 -0.18 0.92
Generalized angularities
LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 1.4 +0.20 1.6
Generalized angularities
Groomed LHA λ10.5
CMS_2021_I1920187 13000 0.89 -0.18 0.71
Generalized angularities
Groomed LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 1.1 0 1.1
Jet mass
Jet mass
CMS_2013_I1224539 7000 n/a - n/a
Jet mass
Filtered jet mass
CMS_2013_I1224539 7000 n/a - n/a
Jet mass
Pruned jet mass
CMS_2013_I1224539 7000 n/a - n/a
Jet mass
Trimmed jet mass
CMS_2013_I1224539 7000 n/a - n/a
Generalized angularities
Multiplicity λ00
CMS_2021_I1920187 13000 3.0* +1.8 4.8
Generalized angularities
Groomed multiplicity λ00
CMS_2021_I1920187 13000 1.8* +0.90 2.7
Generalized angularities
Multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 5.2* +2.2 7.4*
Generalized angularities
Groomed multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 4.4* +1.5 5.9*
Jet pT
ATLAS_2017_I1514251 13000 n/a - n/a
ATLAS_2020_I1788444 13000 n/a - n/a
ATLAS_2022_I2077570 13000 n/a - n/a
Jet pT ratio
CMS_2020_I1776758 13000 0.62 -0.35 0.27*
CMS_2021_I1847230 8000 n/a - n/a
Generalized angularities
(pDT)2 λ20
CMS_2021_I1920187 13000 2.0 +1.2 3.2
Generalized angularities
(pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 3.0* +1.5 4.5*
Generalized angularities
Groomed (pDT)2 λ20
CMS_2021_I1920187 13000 1.6 +1.0 2.6
Generalized angularities
Groomed (pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 2.1* +1.2 3.3*
Generalized angularities
Thrust λ12
CMS_2021_I1920187 13000 2.5 -1.4 1.1
Generalized angularities
Thrust λ12 (charged only)
CMS_2021_I1920187 13000 1.2 -0.100 1.1
Generalized angularities
Groomed thrust λ12
CMS_2021_I1920187 13000 1.5 -0.72 0.78
Generalized angularities
Groomed thrust λ12 (charged only)
CMS_2021_I1920187 13000 1.1 -0.22 0.88
Generalized angularities
Width λ11
CMS_2021_I1920187 13000 1.1 -0.36 0.74
Generalized angularities
Width λ11 (charged only)
CMS_2021_I1920187 13000 1.2 +0.10 1.3
Generalized angularities
Groomed width λ11
CMS_2021_I1920187 13000 1.0 -0.28 0.72
Generalized angularities
Groomed width λ11 (charged only)
CMS_2021_I1920187 13000 1.2 0 1.2
Jet rapidity
ATLAS_2017_I1514251 13000 11 +5.0 16
ATLAS_2019_I1744201 8000 n/a - n/a
ATLAS_2020_I1788444 13000 n/a - n/a
Dijet
ΔR
ATLAS_2020_I1788444 13000 n/a - n/a
CMS_2021_I1847230 8000 n/a - n/a
Dijet
Δφ
ATLAS_2017_I1514251 13000 28 +7.0 35
ATLAS_2020_I1788444 13000 n/a - n/a
ΔrelpT(jets)
CMS_2021_I1866118 13000 9.1 +1.9 11
Dijet
Δy
ATLAS_2020_I1788444 13000 n/a - n/a
Jet mass
Dijet mass
ATLAS_2017_I1514251 13000 n/a - n/a
ATLAS_2020_I1788444 13000 n/a - n/a
Dijet
pT
ATLAS_2020_I1788444 13000 n/a - n/a
Dijet
pT ratio to m
ATLAS_2020_I1788444 13000 n/a - n/a
Underlying event
Nch
ATLAS_2019_I1736531 13000 2.5* -1.5 0.98*
Jet Multiplicities
Jet multiplicity
ATLAS_2017_I1514251 13000 n/a - 49*
ATLAS_2020_I1788444 13000 n/a - n/a
ATLAS_2022_I2077570 13000 n/a - n/a
njets_njets
ATLAS_2017_I1514251 13000 n/a - 180*
Underlying event
Scalar Σ(pT)
ATLAS_2019_I1736531 13000 2.8* -1.4 1.4*
pT Z
ATLAS_2020_I1788444 13000 n/a - n/a
ATLAS_2022_I2077570 13000 n/a - n/a
CMS_2020_I1837084 13000 14 +10 24
pT(Z) to pT(jet) ratio
ATLAS_2022_I2077570 13000 n/a - n/a
Dilepton
pT ratio
CMS_2020_I1776758 13000 0.98 +0.32 1.3*
y Z
ATLAS_2020_I1788444 13000 n/a - n/a
ΔR (jet, Z)
ATLAS_2020_I1788444 13000 n/a - n/a
ΔRmin (jet, Z)
ATLAS_2022_I2077570 13000 n/a - n/a
Δφ (jet, Z)
ATLAS_2020_I1788444 13000 n/a - n/a
CMS_2021_I1866118 13000 3.5 +1.1 4.6
pT balance (jet, Z)
CMS_2021_I1866118 13000 3.1 +0.80 3.9
Δy (jet, Z)
ATLAS_2020_I1788444 13000 n/a - n/a
HT(Z+jets)
ATLAS_2017_I1514251 13000 n/a - n/a
ATLAS_2022_I2077570 13000 n/a - n/a
Δφ (dijet, Z)
CMS_2021_I1866118 13000 n/a - 14
pT balance (dijet, Z)
CMS_2021_I1866118 13000 13 0 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 1430 histograms.