Generator / tune

Details for Pythia 6.426 350 vs. 6.427

pp/ppbar → Z+Jet


Observable Reference Energy χ2+5% (6.426) Δ χ2+5% (6.427)
Underlying event
<pT>
ATLAS_2019_I1736531 13000 1.5* +0.50 2.0*
Underlying event
pT spectrum
ATLAS_2019_I1736531 13000 4.3* -0.100 4.2*
Generalized angularities
LHA λ10.5
CMS_2021_I1920187 13000 3.0 +0.50 3.5
Generalized angularities
LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 1.2 +0.20 1.4
Generalized angularities
Groomed LHA λ10.5
CMS_2021_I1920187 13000 2.0 +0.50 2.5
Generalized angularities
Groomed LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 1.3 +0.100 1.4
Jet mass
Jet mass
CMS_2013_I1224539 7000 n/a - n/a
Jet mass
Filtered jet mass
CMS_2013_I1224539 7000 12* - n/a
Jet mass
Pruned jet mass
CMS_2013_I1224539 7000 18* - n/a
Jet mass
Trimmed jet mass
CMS_2013_I1224539 7000 20* - n/a
Generalized angularities
Multiplicity λ00
CMS_2021_I1920187 13000 1.0* +0.10 1.1*
Generalized angularities
Groomed multiplicity λ00
CMS_2021_I1920187 13000 1.3* +0.100 1.4*
Generalized angularities
Multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 1.1* 0 1.1*
Generalized angularities
Groomed multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 0.90* +0.100 1.00*
Jet pT
ATLAS_2017_I1514251 13000 - 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 - 0.35
CMS_2021_I1847230 8000 n/a - n/a
Generalized angularities
(pDT)2 λ20
CMS_2021_I1920187 13000 1.3 +0.20 1.5
Generalized angularities
(pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 0.76* +0.040 0.80*
Generalized angularities
Groomed (pDT)2 λ20
CMS_2021_I1920187 13000 1.7 +0.40 2.1
Generalized angularities
Groomed (pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 0.82* +0.10 0.92*
Generalized angularities
Thrust λ12
CMS_2021_I1920187 13000 5.2 +0.60 5.8
Generalized angularities
Thrust λ12 (charged only)
CMS_2021_I1920187 13000 1.2 +0.20 1.4
Generalized angularities
Groomed thrust λ12
CMS_2021_I1920187 13000 2.8 +0.40 3.2
Generalized angularities
Groomed thrust λ12 (charged only)
CMS_2021_I1920187 13000 1.4 +0.10 1.5
Generalized angularities
Width λ11
CMS_2021_I1920187 13000 3.0 +0.30 3.3
Generalized angularities
Width λ11 (charged only)
CMS_2021_I1920187 13000 0.99 +0.11 1.1
Generalized angularities
Groomed width λ11
CMS_2021_I1920187 13000 2.2 +0.40 2.6
Generalized angularities
Groomed width λ11 (charged only)
CMS_2021_I1920187 13000 1.3 +0.20 1.5
Jet rapidity
ATLAS_2017_I1514251 13000 - 16
ATLAS_2019_I1744201 8000 9.1* +19 28*
ATLAS_2020_I1788444 13000 14 - 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 - 33
ATLAS_2020_I1788444 13000 8.0 - n/a
ΔrelpT(jets)
CMS_2021_I1866118 13000 - 7.0
Dijet
Δy
ATLAS_2020_I1788444 13000 7.5 - n/a
Jet mass
Dijet mass
ATLAS_2017_I1514251 13000 - 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 1.2* +0.40 1.6*
Jet Multiplicities
Jet multiplicity
ATLAS_2017_I1514251 13000 - n/a
ATLAS_2020_I1788444 13000 48 - n/a
ATLAS_2022_I2077570 13000 n/a - n/a
njets_njets
ATLAS_2017_I1514251 13000 - n/a
Underlying event
Scalar Σ(pT)
ATLAS_2019_I1736531 13000 1.5* +0.30 1.8*
pT Z
ATLAS_2020_I1788444 13000 n/a - n/a
ATLAS_2022_I2077570 13000 n/a - n/a
CMS_2020_I1837084 13000 32 -1.0 31
pT(Z) to pT(jet) ratio
ATLAS_2022_I2077570 13000 n/a - n/a
Dilepton
pT ratio
CMS_2020_I1776758 13000 - 0.22
y Z
ATLAS_2020_I1788444 13000 12 - n/a
ΔR (jet, Z)
ATLAS_2020_I1788444 13000 n/a - n/a
ΔRmin (jet, Z)
ATLAS_2022_I2077570 13000 120* - n/a
Δφ (jet, Z)
ATLAS_2020_I1788444 13000 45 - n/a
CMS_2021_I1866118 13000 - 3.7
pT balance (jet, Z)
CMS_2021_I1866118 13000 - 5.7
Δy (jet, Z)
ATLAS_2020_I1788444 13000 13 - n/a
HT(Z+jets)
ATLAS_2017_I1514251 13000 - n/a
ATLAS_2022_I2077570 13000 n/a - n/a
Δφ (dijet, Z)
CMS_2021_I1866118 13000 - 5.4
pT balance (dijet, Z)
CMS_2021_I1866118 13000 - 5.7

* 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 1378 histograms.