Generator / tune

Details for Pythia 6.426 ambt1 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 2.6* +0.50 3.1*
Underlying event
pT spectrum
ATLAS_2019_I1736531 13000 4.8* -0.100 4.7*
Generalized angularities
LHA λ10.5
CMS_2021_I1920187 13000 6.4 -0.20 6.2
Generalized angularities
LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 2.5 -0.10 2.4
Generalized angularities
Groomed LHA λ10.5
CMS_2021_I1920187 13000 4.2 0 4.2
Generalized angularities
Groomed LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 2.4 0 2.4
Jet mass
Jet mass
CMS_2013_I1224539 7000 58* - n/a
Jet mass
Filtered jet mass
CMS_2013_I1224539 7000 71* - n/a
Jet mass
Pruned jet mass
CMS_2013_I1224539 7000 120* - n/a
Jet mass
Trimmed jet mass
CMS_2013_I1224539 7000 86* - n/a
Generalized angularities
Multiplicity λ00
CMS_2021_I1920187 13000 1.7* 0 1.7*
Generalized angularities
Groomed multiplicity λ00
CMS_2021_I1920187 13000 1.9* -0.100 1.8*
Generalized angularities
Multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 1.3* -0.33 0.97*
Generalized angularities
Groomed multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 1.6* -0.30 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 0.88 -0.13 0.75*
CMS_2021_I1847230 8000 n/a - n/a
Generalized angularities
(pDT)2 λ20
CMS_2021_I1920187 13000 2.5 -0.30 2.2
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 3.3 -0.50 2.8
Generalized angularities
Groomed (pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 1.5* -0.20 1.3*
Generalized angularities
Thrust λ12
CMS_2021_I1920187 13000 11 0 11
Generalized angularities
Thrust λ12 (charged only)
CMS_2021_I1920187 13000 2.9 +0.10 3.0
Generalized angularities
Groomed thrust λ12
CMS_2021_I1920187 13000 5.9 -0.10 5.8
Generalized angularities
Groomed thrust λ12 (charged only)
CMS_2021_I1920187 13000 2.8 +0.10 2.9
Generalized angularities
Width λ11
CMS_2021_I1920187 13000 6.2* 0 6.2*
Generalized angularities
Width λ11 (charged only)
CMS_2021_I1920187 13000 2.0 0 2.0
Generalized angularities
Groomed width λ11
CMS_2021_I1920187 13000 4.3 +0.20 4.5
Generalized angularities
Groomed width λ11 (charged only)
CMS_2021_I1920187 13000 2.8 0 2.8
Jet rapidity
ATLAS_2017_I1514251 13000 2.6 -0.40 2.2
ATLAS_2019_I1744201 8000 21* - 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 9.9 -1.1 8.8
ATLAS_2020_I1788444 13000 n/a - n/a
ΔrelpT(jets)
CMS_2021_I1866118 13000 2.9 -0.40 2.5
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 2.8* +0.40 3.2*
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 3.2* +0.90 4.1*
pT Z
ATLAS_2020_I1788444 13000 n/a - n/a
ATLAS_2022_I2077570 13000 n/a - n/a
CMS_2020_I1837084 13000 4.9 +0.50 5.4
pT(Z) to pT(jet) ratio
ATLAS_2022_I2077570 13000 n/a - n/a
Dilepton
pT ratio
CMS_2020_I1776758 13000 1.5 -0.65 0.85
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 2.0 -0.40 1.6
pT balance (jet, Z)
CMS_2021_I1866118 13000 3.5 -1.4 2.1
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 - 47
Δφ (dijet, Z)
CMS_2021_I1866118 13000 2.6 -0.20 2.4
pT balance (dijet, Z)
CMS_2021_I1866118 13000 3.6 -1.5 2.1

* 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.