Generator

Details for Pythia 6.424 default vs. a

pp/ppbar → Z+Jet


Observable Reference Energy χ2+5% (default) Δ χ2+5% (a)
Underlying event
<pT>
ATLAS_2019_I1736531 13000 1.8* +0.60 2.4*
Underlying event
pT spectrum
ATLAS_2019_I1736531 13000 2.3* +0.50 2.8*
Generalized angularities
LHA λ10.5
CMS_2021_I1920187 13000 4.1 +0.10 4.2
Generalized angularities
LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 1.8 -0.20 1.6
Generalized angularities
Groomed LHA λ10.5
CMS_2021_I1920187 13000 2.2 0 2.2
Generalized angularities
Groomed LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 1.4 0 1.4
Jet mass
Jet mass
CMS_2013_I1224539 7000 59* - n/a
Jet mass
Filtered jet mass
CMS_2013_I1224539 7000 57* - n/a
Jet mass
Pruned jet mass
CMS_2013_I1224539 7000 57* - n/a
Jet mass
Trimmed jet mass
CMS_2013_I1224539 7000 59* - n/a
Generalized angularities
Multiplicity λ00
CMS_2021_I1920187 13000 1.3* 0 1.3*
Generalized angularities
Groomed multiplicity λ00
CMS_2021_I1920187 13000 1.1* -0.15 0.95*
Generalized angularities
Multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 1.3* +0.20 1.5*
Generalized angularities
Groomed multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 0.86* +0.070 0.93*
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 0.68* +0.72 1.4*
CMS_2021_I1847230 8000 n/a - n/a
Generalized angularities
(pDT)2 λ20
CMS_2021_I1920187 13000 2.0 -0.10 1.9
Generalized angularities
(pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 0.94* +0.050 0.99*
Generalized angularities
Groomed (pDT)2 λ20
CMS_2021_I1920187 13000 1.8 -0.10 1.7
Generalized angularities
Groomed (pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 0.92* -0.030 0.89*
Generalized angularities
Thrust λ12
CMS_2021_I1920187 13000 8.2 +0.30 8.5
Generalized angularities
Thrust λ12 (charged only)
CMS_2021_I1920187 13000 2.5 +0.10 2.6
Generalized angularities
Groomed thrust λ12
CMS_2021_I1920187 13000 2.8 +0.10 2.9
Generalized angularities
Groomed thrust λ12 (charged only)
CMS_2021_I1920187 13000 1.5 +0.10 1.6
Generalized angularities
Width λ11
CMS_2021_I1920187 13000 4.2 0 4.2
Generalized angularities
Width λ11 (charged only)
CMS_2021_I1920187 13000 1.4 0 1.4
Generalized angularities
Groomed width λ11
CMS_2021_I1920187 13000 2.2 +0.100 2.3
Generalized angularities
Groomed width λ11 (charged only)
CMS_2021_I1920187 13000 1.6 -0.10 1.5
Jet rapidity
ATLAS_2017_I1514251 13000 9.7 -2.0 7.7
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 18* +7.0 25
ATLAS_2020_I1788444 13000 n/a - n/a
ΔrelpT(jets)
CMS_2021_I1866118 13000 25 -7.0 18
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 3.8* +1.6 5.4*
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 2.9* +0.80 3.7*
pT Z
ATLAS_2020_I1788444 13000 n/a - n/a
ATLAS_2022_I2077570 13000 n/a - 60
CMS_2020_I1837084 13000 44 0 44
pT(Z) to pT(jet) ratio
ATLAS_2022_I2077570 13000 n/a - n/a
Dilepton
pT ratio
CMS_2020_I1776758 13000 2.4 -1.5 0.94
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 5.3 -1.5 3.8
pT balance (jet, Z)
CMS_2021_I1866118 13000 14 -2.0 12
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 - 88
Δφ (dijet, Z)
CMS_2021_I1866118 13000 3.3 +1.2 4.5
pT balance (dijet, Z)
CMS_2021_I1866118 13000 5.9 +0.100 6.0

* 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.