Generator / tune

Details for Pythia 6.426 p2010 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 1.4* -0.100 1.3*
Underlying event
 pT spectrum
 ATLAS_2019_I1736531 13000 3.0* +0.30 3.3*
Generalized angularities
 LHA λ10.5
 CMS_2021_I1920187 13000 3.9 +0.10 4.0
Generalized angularities
 LHA λ10.5 (charged only)
 CMS_2021_I1920187 13000 1.6 +0.100 1.7
Generalized angularities
 Groomed LHA λ10.5
 CMS_2021_I1920187 13000 2.5 +0.30 2.8*
Generalized angularities
 Groomed LHA λ10.5 (charged only)
 CMS_2021_I1920187 13000 1.6 +0.100 1.7
Jet mass
 Jet mass
 CMS_2013_I1224539 7000 43* +19 62*
Jet mass
 Filtered jet mass
 CMS_2013_I1224539 7000 78* +2.0 80*
Jet mass
 Pruned jet mass
 CMS_2013_I1224539 7000 91* +19 110*
Jet mass
 Trimmed jet mass
 CMS_2013_I1224539 7000 91* +69 160*
Generalized angularities
 Multiplicity λ00
 CMS_2021_I1920187 13000 1.9* +0.20 2.1*
Generalized angularities
 Groomed multiplicity λ00
 CMS_2021_I1920187 13000 2.0* +0.10 2.1*
Generalized angularities
 Multiplicity λ00 (charged only)
 CMS_2021_I1920187 13000 1.0* -0.030 0.97*
Generalized angularities
 Groomed multiplicity λ00 (charged only)
 CMS_2021_I1920187 13000 1.3* +0.30 1.6*
Jet pT
 ATLAS_2017_I1514251 13000 n/a - 26*
ATLAS_2020_I1788444 13000 n/a - n/a
ATLAS_2022_I2077570 13000 n/a - n/a
Jet pT ratio
 CMS_2020_I1776758 13000 3.7* - n/a
CMS_2021_I1847230 8000 n/a - n/a
Generalized angularities
 (pDT)2 λ20
 CMS_2021_I1920187 13000 2.8 +0.10 2.9
Generalized angularities
 (pDT)2 λ20 (charged only)
 CMS_2021_I1920187 13000 1.3* 0 1.3*
Generalized angularities
 Groomed (pDT)2 λ20
 CMS_2021_I1920187 13000 2.9 +0.60 3.5*
Generalized angularities
 Groomed (pDT)2 λ20 (charged only)
 CMS_2021_I1920187 13000 1.4* +0.10 1.5*
Generalized angularities
 Thrust λ12
 CMS_2021_I1920187 13000 6.2 +0.80 7.0
Generalized angularities
 Thrust λ12 (charged only)
 CMS_2021_I1920187 13000 1.5 +0.20 1.7
Generalized angularities
 Groomed thrust λ12
 CMS_2021_I1920187 13000 3.2 +0.30 3.5
Generalized angularities
 Groomed thrust λ12 (charged only)
 CMS_2021_I1920187 13000 1.5 +0.20 1.7
Generalized angularities
 Width λ11
 CMS_2021_I1920187 13000 3.6 +0.30 3.9*
Generalized angularities
 Width λ11 (charged only)
 CMS_2021_I1920187 13000 1.1 +0.20 1.3
Generalized angularities
 Groomed width λ11
 CMS_2021_I1920187 13000 2.6 +0.20 2.8
Generalized angularities
 Groomed width λ11 (charged only)
 CMS_2021_I1920187 13000 1.6 +0.20 1.8
Jet rapidity
 ATLAS_2017_I1514251 13000 9.8 -0.90 8.9
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 14* 0 14*
ATLAS_2020_I1788444 13000 n/a - n/a
ΔrelpT(jets)
 CMS_2021_I1866118 13000 2.6 +1.2 3.8
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 1.7* 0 1.7*
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 1.9* -0.100 1.8*
pT Z
 ATLAS_2020_I1788444 13000 n/a - n/a
ATLAS_2022_I2077570 13000 n/a - n/a
CMS_2020_I1837084 13000 33 +3.0 36
pT(Z) to pT(jet) ratio
 ATLAS_2022_I2077570 13000 n/a - n/a
Dilepton
 pT ratio
 CMS_2020_I1776758 13000 4.3* -2.4 1.9
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 2.5 -0.50 2.0
pT balance (jet, Z)
 CMS_2021_I1866118 13000 2.6 +0.50 3.1
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 2.3 - n/a
pT balance (dijet, Z)
 CMS_2021_I1866118 13000 2.3 -0.30 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.