Generator / tune

Details for Pythia 6.427 379 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 1.5* -0.20 1.3*
Underlying event
pT spectrum
ATLAS_2019_I1736531 13000 3.9* -0.50 3.4*
Generalized angularities
LHA λ10.5
CMS_2021_I1920187 13000 4.3 -1.4 2.9
Generalized angularities
LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 1.7 -0.50 1.2
Generalized angularities
Groomed LHA λ10.5
CMS_2021_I1920187 13000 2.8 -0.80 2.0
Generalized angularities
Groomed LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 1.7 -0.50 1.2
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 1.3* 0 1.3*
Generalized angularities
Groomed multiplicity λ00
CMS_2021_I1920187 13000 1.6* -0.10 1.5*
Generalized angularities
Multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 1.0* -0.060 0.94*
Generalized angularities
Groomed multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 0.96* +0.34 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 1.2* -0.87 0.33*
CMS_2021_I1847230 8000 n/a - n/a
Generalized angularities
(pDT)2 λ20
CMS_2021_I1920187 13000 2.0 -0.50 1.5
Generalized angularities
(pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 0.98* +0.12 1.1*
Generalized angularities
Groomed (pDT)2 λ20
CMS_2021_I1920187 13000 2.7 -0.80 1.9
Generalized angularities
Groomed (pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 1.3* -0.20 1.1*
Generalized angularities
Thrust λ12
CMS_2021_I1920187 13000 7.4 -2.8 4.6
Generalized angularities
Thrust λ12 (charged only)
CMS_2021_I1920187 13000 1.9 -0.60 1.3
Generalized angularities
Groomed thrust λ12
CMS_2021_I1920187 13000 3.8 -1.2 2.6
Generalized angularities
Groomed thrust λ12 (charged only)
CMS_2021_I1920187 13000 2.0 -0.70 1.3
Generalized angularities
Width λ11
CMS_2021_I1920187 13000 4.1 -1.2 2.9
Generalized angularities
Width λ11 (charged only)
CMS_2021_I1920187 13000 1.3 -0.43 0.87
Generalized angularities
Groomed width λ11
CMS_2021_I1920187 13000 2.8 -0.80 2.0
Generalized angularities
Groomed width λ11 (charged only)
CMS_2021_I1920187 13000 2.0 -0.70 1.3
Jet rapidity
ATLAS_2017_I1514251 13000 1.5 -0.20 1.3
ATLAS_2019_I1744201 8000 28* - n/a
ATLAS_2020_I1788444 13000 3.5 - n/a
Dijet
ΔR
ATLAS_2020_I1788444 13000 2.3 - n/a
CMS_2021_I1847230 8000 n/a - n/a
Dijet
Δφ
ATLAS_2017_I1514251 13000 10 -2.8 7.2
ATLAS_2020_I1788444 13000 2.3 - n/a
ΔrelpT(jets)
CMS_2021_I1866118 13000 5.9 -4.8 1.1
Dijet
Δy
ATLAS_2020_I1788444 13000 2.2 - 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 2.4 - n/a
Underlying event
Nch
ATLAS_2019_I1736531 13000 1.6* -0.30 1.3*
Jet Multiplicities
Jet multiplicity
ATLAS_2017_I1514251 13000 n/a - n/a
ATLAS_2020_I1788444 13000 3.4 - 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 1.9* -0.40 1.5*
pT Z
ATLAS_2020_I1788444 13000 6.6* - n/a
ATLAS_2022_I2077570 13000 n/a - n/a
CMS_2020_I1837084 13000 3.6 +1.00 4.6
pT(Z) to pT(jet) ratio
ATLAS_2022_I2077570 13000 n/a - n/a
Dilepton
pT ratio
CMS_2020_I1776758 13000 1.2 -0.33 0.87
y Z
ATLAS_2020_I1788444 13000 0.87 - n/a
ΔR (jet, Z)
ATLAS_2020_I1788444 13000 40 - n/a
ΔRmin (jet, Z)
ATLAS_2022_I2077570 13000 n/a - n/a
Δφ (jet, Z)
ATLAS_2020_I1788444 13000 34 - n/a
CMS_2021_I1866118 13000 0.79 +0.20 0.99
pT balance (jet, Z)
CMS_2021_I1866118 13000 1.1 +0.40 1.5
Δy (jet, Z)
ATLAS_2020_I1788444 13000 6.4 - 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 1.6 +1.0 2.6
pT balance (dijet, Z)
CMS_2021_I1866118 13000 2.9 -0.90 2.0

* 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.