Generator / tune

Details for Pythia 6.426 360 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 3.1* -0.30 2.8*
Underlying event
 pT spectrum
 ATLAS_2019_I1736531 13000 3.3* -1.3 2.0*
Generalized angularities
 LHA λ10.5
 CMS_2021_I1920187 13000 12 0 12
Generalized angularities
 LHA λ10.5 (charged only)
 CMS_2021_I1920187 13000 5.7 -0.10 5.6
Generalized angularities
 Groomed LHA λ10.5
 CMS_2021_I1920187 13000 7.4 -0.30 7.1
Generalized angularities
 Groomed LHA λ10.5 (charged only)
 CMS_2021_I1920187 13000 4.9 -0.30 4.6
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 4.9* +0.20 5.1*
Generalized angularities
 Groomed multiplicity λ00
 CMS_2021_I1920187 13000 4.5* +0.100 4.6*
Generalized angularities
 Multiplicity λ00 (charged only)
 CMS_2021_I1920187 13000 2.0* +0.20 2.2*
Generalized angularities
 Groomed multiplicity λ00 (charged only)
 CMS_2021_I1920187 13000 3.9* -1.0 2.9*
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 3.6* -1.8 1.8
CMS_2021_I1847230 8000 n/a - n/a
Generalized angularities
 (pDT)2 λ20
 CMS_2021_I1920187 13000 8.1 -0.40 7.7
Generalized angularities
 (pDT)2 λ20 (charged only)
 CMS_2021_I1920187 13000 4.2* -0.50 3.7*
Generalized angularities
 Groomed (pDT)2 λ20
 CMS_2021_I1920187 13000 7.3 +0.20 7.5
Generalized angularities
 Groomed (pDT)2 λ20 (charged only)
 CMS_2021_I1920187 13000 3.9* -0.60 3.3*
Generalized angularities
 Thrust λ12
 CMS_2021_I1920187 13000 16 0 16
Generalized angularities
 Thrust λ12 (charged only)
 CMS_2021_I1920187 13000 6.3 +0.20 6.5
Generalized angularities
 Groomed thrust λ12
 CMS_2021_I1920187 13000 8.0 -0.30 7.7
Generalized angularities
 Groomed thrust λ12 (charged only)
 CMS_2021_I1920187 13000 4.4 -0.10 4.3
Generalized angularities
 Width λ11
 CMS_2021_I1920187 13000 10.0* 0 10
Generalized angularities
 Width λ11 (charged only)
 CMS_2021_I1920187 13000 4.8 0 4.8
Generalized angularities
 Groomed width λ11
 CMS_2021_I1920187 13000 7.2 -0.60 6.6
Generalized angularities
 Groomed width λ11 (charged only)
 CMS_2021_I1920187 13000 4.9 -0.20 4.7
Jet rapidity
 ATLAS_2017_I1514251 13000 7.6 +2.0 9.6
ATLAS_2019_I1744201 8000 24* +20 44*
ATLAS_2020_I1788444 13000 16 - n/a
Dijet
 ΔR
 ATLAS_2020_I1788444 13000 8.2 - n/a
CMS_2021_I1847230 8000 n/a - n/a
Dijet
 Δφ
 ATLAS_2017_I1514251 13000 15* +4.0 19*
ATLAS_2020_I1788444 13000 2.8 - n/a
ΔrelpT(jets)
 CMS_2021_I1866118 13000 4.2 +0.20 4.4
Dijet
 Δy
 ATLAS_2020_I1788444 13000 5.2 - 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 n/a - n/a
Underlying event
 Nch
 ATLAS_2019_I1736531 13000 10* +1.0 11*
Jet Multiplicities
 Jet multiplicity
 ATLAS_2017_I1514251 13000 n/a - n/a
ATLAS_2020_I1788444 13000 32 - 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 8.2* +0.50 8.7*
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 2.7 +0.100 2.8
y Z
 ATLAS_2020_I1788444 13000 12 - n/a
ΔR (jet, Z)
 ATLAS_2020_I1788444 13000 18 - n/a
ΔRmin (jet, Z)
 ATLAS_2022_I2077570 13000 n/a - n/a
Δφ (jet, Z)
 ATLAS_2020_I1788444 13000 30 - n/a
CMS_2021_I1866118 13000 3.9 -1.1 2.8
pT balance (jet, Z)
 CMS_2021_I1866118 13000 7.0 -1.3 5.7
Δy (jet, Z)
 ATLAS_2020_I1788444 13000 17 - 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 3.5 +1.5 5.0
pT balance (dijet, Z)
 CMS_2021_I1866118 13000 3.4 +0.40 3.8

* 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.