Generator / tune

Details for Pythia 6.426 atlas-csc 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 8.1* -0.20 7.9*
Underlying event
 pT spectrum
 ATLAS_2019_I1736531 13000 11* -1.0 10*
Generalized angularities
 LHA λ10.5
 CMS_2021_I1920187 13000 19 +1.0 20
Generalized angularities
 LHA λ10.5 (charged only)
 CMS_2021_I1920187 13000 8.2 +0.30 8.5
Generalized angularities
 Groomed LHA λ10.5
 CMS_2021_I1920187 13000 15 0 15*
Generalized angularities
 Groomed LHA λ10.5 (charged only)
 CMS_2021_I1920187 13000 8.8 0 8.8
Jet mass
 Jet mass
 CMS_2013_I1224539 7000 150* -10 140*
Jet mass
 Filtered jet mass
 CMS_2013_I1224539 7000 7.8* - n/a
Jet mass
 Pruned jet mass
 CMS_2013_I1224539 7000 240* +150 390*
Jet mass
 Trimmed jet mass
 CMS_2013_I1224539 7000 n/a - n/a
Generalized angularities
 Multiplicity λ00
 CMS_2021_I1920187 13000 7.1* -0.60 6.5*
Generalized angularities
 Groomed multiplicity λ00
 CMS_2021_I1920187 13000 8.2* -0.40 7.8*
Generalized angularities
 Multiplicity λ00 (charged only)
 CMS_2021_I1920187 13000 3.9* -0.20 3.7*
Generalized angularities
 Groomed multiplicity λ00 (charged only)
 CMS_2021_I1920187 13000 8.4* -1.2 7.2*
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 1.3* +1.6 2.9*
CMS_2021_I1847230 8000 n/a - n/a
Generalized angularities
 (pDT)2 λ20
 CMS_2021_I1920187 13000 9.1 0 9.1
Generalized angularities
 (pDT)2 λ20 (charged only)
 CMS_2021_I1920187 13000 4.6* +0.90 5.5*
Generalized angularities
 Groomed (pDT)2 λ20
 CMS_2021_I1920187 13000 13 0 13
Generalized angularities
 Groomed (pDT)2 λ20 (charged only)
 CMS_2021_I1920187 13000 5.5* +1.0 6.5*
Generalized angularities
 Thrust λ12
 CMS_2021_I1920187 13000 28 0 28
Generalized angularities
 Thrust λ12 (charged only)
 CMS_2021_I1920187 13000 8.2 -0.100 8.1
Generalized angularities
 Groomed thrust λ12
 CMS_2021_I1920187 13000 20 0 20
Generalized angularities
 Groomed thrust λ12 (charged only)
 CMS_2021_I1920187 13000 9.9 +0.100 10
Generalized angularities
 Width λ11
 CMS_2021_I1920187 13000 17* +1.0 18*
Generalized angularities
 Width λ11 (charged only)
 CMS_2021_I1920187 13000 6.2 +0.30 6.5
Generalized angularities
 Groomed width λ11
 CMS_2021_I1920187 13000 15 0 15
Generalized angularities
 Groomed width λ11 (charged only)
 CMS_2021_I1920187 13000 9.9 +0.100 10
Jet rapidity
 ATLAS_2017_I1514251 13000 10 -2.6 7.4
ATLAS_2019_I1744201 8000 n/a - 24*
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* +9.0 24*
ATLAS_2020_I1788444 13000 n/a - n/a
ΔrelpT(jets)
 CMS_2021_I1866118 13000 5.1 +0.70 5.8
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 3.5* -0.60 2.9*
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 5.2* -0.40 4.8*
pT Z
 ATLAS_2020_I1788444 13000 n/a - n/a
ATLAS_2022_I2077570 13000 n/a - n/a
CMS_2020_I1837084 13000 30 +3.0 33
pT(Z) to pT(jet) ratio
 ATLAS_2022_I2077570 13000 n/a - n/a
Dilepton
 pT ratio
 CMS_2020_I1776758 13000 0.93 +2.0 2.9*
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 110* - n/a
Δφ (jet, Z)
 ATLAS_2020_I1788444 13000 n/a - n/a
CMS_2021_I1866118 13000 7.2 -4.8 2.4
pT balance (jet, Z)
 CMS_2021_I1866118 13000 7.3 -1.8 5.5
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 16 -10 5.6
pT balance (dijet, Z)
 CMS_2021_I1866118 13000 9.4 -3.6 5.8

* 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 1370 histograms.