Generator / tune

Details for Pythia 6.427 345 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 3.5* -1.3 2.2*
Underlying event
pT spectrum
ATLAS_2019_I1736531 13000 6.1* -1.8 4.3*
Generalized angularities
LHA λ10.5
CMS_2021_I1920187 13000 1.0 -0.020 0.98
Generalized angularities
LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 1.2 +0.30 1.5
Generalized angularities
Groomed LHA λ10.5
CMS_2021_I1920187 13000 0.91 -0.100 0.81
Generalized angularities
Groomed LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 0.99 +0.31 1.3
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 2.3* +2.1 4.4*
Generalized angularities
Groomed multiplicity λ00
CMS_2021_I1920187 13000 1.4* +1.0 2.4*
Generalized angularities
Multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 4.7* +2.2 6.9*
Generalized angularities
Groomed multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 3.6* +1.9 5.5*
Jet pT
ATLAS_2017_I1514251 13000 14* - 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 0.96* +0.34 1.3*
CMS_2021_I1847230 8000 n/a - n/a
Generalized angularities
(pDT)2 λ20
CMS_2021_I1920187 13000 2.0 +1.0 3.0
Generalized angularities
(pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 3.0* +1.3 4.3*
Generalized angularities
Groomed (pDT)2 λ20
CMS_2021_I1920187 13000 1.5 +1.1 2.6
Generalized angularities
Groomed (pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 2.1* +1.0 3.1*
Generalized angularities
Thrust λ12
CMS_2021_I1920187 13000 2.4 -1.1 1.3
Generalized angularities
Thrust λ12 (charged only)
CMS_2021_I1920187 13000 1.1 0 1.1
Generalized angularities
Groomed thrust λ12
CMS_2021_I1920187 13000 1.7 -0.74 0.96
Generalized angularities
Groomed thrust λ12 (charged only)
CMS_2021_I1920187 13000 1.0 0 1.00
Generalized angularities
Width λ11
CMS_2021_I1920187 13000 1.1 -0.33 0.77
Generalized angularities
Width λ11 (charged only)
CMS_2021_I1920187 13000 1.0 +0.20 1.2
Generalized angularities
Groomed width λ11
CMS_2021_I1920187 13000 1.1 -0.36 0.74
Generalized angularities
Groomed width λ11 (charged only)
CMS_2021_I1920187 13000 1.0 +0.10 1.1
Jet rapidity
ATLAS_2017_I1514251 13000 14 -2.0 12
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 10 +26 36*
ATLAS_2020_I1788444 13000 n/a - n/a
ΔrelpT(jets)
CMS_2021_I1866118 13000 6.0 +0.60 6.6
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 2.2* -1.1 1.1*
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* -1.3 1.6*
pT Z
ATLAS_2020_I1788444 13000 n/a - n/a
ATLAS_2022_I2077570 13000 n/a - n/a
CMS_2020_I1837084 13000 30 +13 43
pT(Z) to pT(jet) ratio
ATLAS_2022_I2077570 13000 n/a - n/a
Dilepton
pT ratio
CMS_2020_I1776758 13000 1.1 -0.29 0.81
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 210 - n/a
Δφ (jet, Z)
ATLAS_2020_I1788444 13000 n/a - n/a
CMS_2021_I1866118 13000 4.0 +3.2 7.2
pT balance (jet, Z)
CMS_2021_I1866118 13000 3.1 +2.9 6.0
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 6.7 -1.8 4.9
pT balance (dijet, Z)
CMS_2021_I1866118 13000 7.3 -2.9 4.4

* 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.