Generator / tune

Details for Pythia 6.427 350 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 2.0* -0.80 1.2*
Underlying event
pT spectrum
ATLAS_2019_I1736531 13000 4.2* 0 4.2*
Generalized angularities
LHA λ10.5
CMS_2021_I1920187 13000 3.5 -1.2 2.3
Generalized angularities
LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 1.4 -0.47 0.93
Generalized angularities
Groomed LHA λ10.5
CMS_2021_I1920187 13000 2.5 -0.90 1.6
Generalized angularities
Groomed LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 1.4 -0.40 1.0
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 1.1* 0 1.1*
Generalized angularities
Groomed multiplicity λ00
CMS_2021_I1920187 13000 1.4* -0.20 1.2*
Generalized angularities
Multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 1.1* +0.60 1.7*
Generalized angularities
Groomed multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 1.00* +0.30 1.3*
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 0.35 - n/a
CMS_2021_I1847230 8000 n/a - n/a
Generalized angularities
(pDT)2 λ20
CMS_2021_I1920187 13000 1.5 -0.20 1.3
Generalized angularities
(pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 0.80* +0.19 0.99*
Generalized angularities
Groomed (pDT)2 λ20
CMS_2021_I1920187 13000 2.1 -0.70 1.4
Generalized angularities
Groomed (pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 0.92* -0.010 0.91*
Generalized angularities
Thrust λ12
CMS_2021_I1920187 13000 5.8 -2.0 3.8
Generalized angularities
Thrust λ12 (charged only)
CMS_2021_I1920187 13000 1.4 -0.47 0.93
Generalized angularities
Groomed thrust λ12
CMS_2021_I1920187 13000 3.2 -1.0 2.2
Generalized angularities
Groomed thrust λ12 (charged only)
CMS_2021_I1920187 13000 1.5 -0.40 1.1
Generalized angularities
Width λ11
CMS_2021_I1920187 13000 3.3 -1.0 2.3
Generalized angularities
Width λ11 (charged only)
CMS_2021_I1920187 13000 1.1 -0.33 0.77
Generalized angularities
Groomed width λ11
CMS_2021_I1920187 13000 2.6 -0.90 1.7
Generalized angularities
Groomed width λ11 (charged only)
CMS_2021_I1920187 13000 1.5 -0.40 1.1
Jet rapidity
ATLAS_2017_I1514251 13000 16 0 16
ATLAS_2019_I1744201 8000 28* - 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 33 -10 23*
ATLAS_2020_I1788444 13000 n/a - n/a
ΔrelpT(jets)
CMS_2021_I1866118 13000 7.0 +0.80 7.8
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 1.6* -0.61 0.99*
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 1.8* -0.60 1.2*
pT Z
ATLAS_2020_I1788444 13000 n/a - n/a
ATLAS_2022_I2077570 13000 n/a - n/a
CMS_2020_I1837084 13000 31 +11 42
pT(Z) to pT(jet) ratio
ATLAS_2022_I2077570 13000 n/a - n/a
Dilepton
pT ratio
CMS_2020_I1776758 13000 0.22 +0.71 0.93
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 3.7 -1.1 2.6
pT balance (jet, Z)
CMS_2021_I1866118 13000 5.7 -1.8 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 5.4 - n/a
pT balance (dijet, Z)
CMS_2021_I1866118 13000 5.7 +0.30 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.