Generator / tune

Details for Pythia 6.427 p0 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 1.8* -0.20 1.6*
Underlying event
pT spectrum
ATLAS_2019_I1736531 13000 3.2* +0.100 3.3*
Generalized angularities
LHA λ10.5
CMS_2021_I1920187 13000 9.8 -1.5 8.3
Generalized angularities
LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 4.2 -0.40 3.8
Generalized angularities
Groomed LHA λ10.5
CMS_2021_I1920187 13000 5.9 -0.80 5.1
Generalized angularities
Groomed LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 3.8 -0.50 3.3
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 4.7* -1.4 3.3*
Generalized angularities
Groomed multiplicity λ00
CMS_2021_I1920187 13000 3.6* -0.70 2.9*
Generalized angularities
Multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 1.1* +0.100 1.2*
Generalized angularities
Groomed multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 2.2* +0.40 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 2.2* -0.40 1.8
CMS_2021_I1847230 8000 n/a - n/a
Generalized angularities
(pDT)2 λ20
CMS_2021_I1920187 13000 6.1 -1.2 4.9
Generalized angularities
(pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 2.7* -0.30 2.4*
Generalized angularities
Groomed (pDT)2 λ20
CMS_2021_I1920187 13000 6.0 -1.2 4.8
Generalized angularities
Groomed (pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 2.6* -0.30 2.3*
Generalized angularities
Thrust λ12
CMS_2021_I1920187 13000 13 -3.2 9.8
Generalized angularities
Thrust λ12 (charged only)
CMS_2021_I1920187 13000 4.2 -0.60 3.6
Generalized angularities
Groomed thrust λ12
CMS_2021_I1920187 13000 6.7 -1.2 5.5
Generalized angularities
Groomed thrust λ12 (charged only)
CMS_2021_I1920187 13000 3.4 -0.40 3.0
Generalized angularities
Width λ11
CMS_2021_I1920187 13000 8.0 -1.5 6.5
Generalized angularities
Width λ11 (charged only)
CMS_2021_I1920187 13000 3.3 -0.20 3.1
Generalized angularities
Groomed width λ11
CMS_2021_I1920187 13000 5.6 -0.80 4.8
Generalized angularities
Groomed width λ11 (charged only)
CMS_2021_I1920187 13000 4.0 -0.60 3.4
Jet rapidity
ATLAS_2017_I1514251 13000 10.0 -2.2 7.8
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 15* -3.0 12
ATLAS_2020_I1788444 13000 n/a - n/a
ΔrelpT(jets)
CMS_2021_I1866118 13000 4.0 +1.6 5.6
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 4.2* -1.1 3.1*
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 3.6* -0.50 3.1*
pT Z
ATLAS_2020_I1788444 13000 n/a - n/a
ATLAS_2022_I2077570 13000 n/a - n/a
CMS_2020_I1837084 13000 35 +10 45
pT(Z) to pT(jet) ratio
ATLAS_2022_I2077570 13000 n/a - n/a
Dilepton
pT ratio
CMS_2020_I1776758 13000 3.0* -1.4 1.6
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 3.2 -0.60 2.6
pT balance (jet, Z)
CMS_2021_I1866118 13000 3.9 -1.7 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 3.3 +0.90 4.2
pT balance (dijet, Z)
CMS_2021_I1866118 13000 3.2 +1.4 4.6

* 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.