Generator / tune

Details for Pythia 6.427 atlas-csc 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 7.9* -0.80 7.1*
Underlying event
pT spectrum
ATLAS_2019_I1736531 13000 10* -0.30 9.7*
Generalized angularities
LHA λ10.5
CMS_2021_I1920187 13000 20 -11 8.8
Generalized angularities
LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 8.5 -5.1 3.4
Generalized angularities
Groomed LHA λ10.5
CMS_2021_I1920187 13000 15* -8.9 6.1
Generalized angularities
Groomed LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 8.8 -5.2 3.6
Jet mass
Jet mass
CMS_2013_I1224539 7000 140* - n/a
Jet mass
Filtered jet mass
CMS_2013_I1224539 7000 n/a - n/a
Jet mass
Pruned jet mass
CMS_2013_I1224539 7000 390* - n/a
Jet mass
Trimmed jet mass
CMS_2013_I1224539 7000 n/a - n/a
Generalized angularities
Multiplicity λ00
CMS_2021_I1920187 13000 6.5* -2.9 3.6*
Generalized angularities
Groomed multiplicity λ00
CMS_2021_I1920187 13000 7.8* -4.2 3.6*
Generalized angularities
Multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 3.7* -2.4 1.3*
Generalized angularities
Groomed multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 7.2* -4.6 2.6*
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 2.9* - n/a
CMS_2021_I1847230 8000 n/a - n/a
Generalized angularities
(pDT)2 λ20
CMS_2021_I1920187 13000 9.1 -5.6 3.5
Generalized angularities
(pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 5.5* -3.7 1.8*
Generalized angularities
Groomed (pDT)2 λ20
CMS_2021_I1920187 13000 13 -8.1 4.9
Generalized angularities
Groomed (pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 6.5* -4.5 2.0*
Generalized angularities
Thrust λ12
CMS_2021_I1920187 13000 28 -15 13
Generalized angularities
Thrust λ12 (charged only)
CMS_2021_I1920187 13000 8.1 -4.5 3.6
Generalized angularities
Groomed thrust λ12
CMS_2021_I1920187 13000 20 -12 7.9
Generalized angularities
Groomed thrust λ12 (charged only)
CMS_2021_I1920187 13000 10 -6.2 3.8
Generalized angularities
Width λ11
CMS_2021_I1920187 13000 18* -9.9 8.1
Generalized angularities
Width λ11 (charged only)
CMS_2021_I1920187 13000 6.5 -3.8 2.7
Generalized angularities
Groomed width λ11
CMS_2021_I1920187 13000 15 -8.7 6.3
Generalized angularities
Groomed width λ11 (charged only)
CMS_2021_I1920187 13000 10 -6.0 4.0
Jet rapidity
ATLAS_2017_I1514251 13000 7.4 +0.100 7.5
ATLAS_2019_I1744201 8000 24* - 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 24* -12 12*
ATLAS_2020_I1788444 13000 n/a - n/a
ΔrelpT(jets)
CMS_2021_I1866118 13000 5.8 -1.9 3.9
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 2.9* -0.30 2.6*
Jet Multiplicities
Jet multiplicity
ATLAS_2017_I1514251 13000 n/a - n/a
ATLAS_2020_I1788444 13000 n/a - n/a
ATLAS_2022_I2077570 13000 n/a - n/a
njets_njets
ATLAS_2017_I1514251 13000 n/a - n/a
Underlying event
Scalar Σ(pT)
ATLAS_2019_I1736531 13000 4.8* -0.100 4.7*
pT Z
ATLAS_2020_I1788444 13000 n/a - n/a
ATLAS_2022_I2077570 13000 n/a - n/a
CMS_2020_I1837084 13000 33 +16 49
pT(Z) to pT(jet) ratio
ATLAS_2022_I2077570 13000 n/a - n/a
Dilepton
pT ratio
CMS_2020_I1776758 13000 2.9* -0.90 2.0*
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 2.4 -0.50 1.9
pT balance (jet, Z)
CMS_2021_I1866118 13000 5.5 -3.3 2.2
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 5.6 - n/a
pT balance (dijet, Z)
CMS_2021_I1866118 13000 5.8 -1.9 3.9

* 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 1370 histograms.