Generator / tune

Details for Pythia 6.427 358 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 1.8* -0.20 1.6*
Underlying event
pT spectrum
ATLAS_2019_I1736531 13000 4.0* -0.60 3.4*
Generalized angularities
LHA λ10.5
CMS_2021_I1920187 13000 3.4 -0.90 2.5
Generalized angularities
LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 1.4 -0.30 1.1
Generalized angularities
Groomed LHA λ10.5
CMS_2021_I1920187 13000 2.3 -0.40 1.9
Generalized angularities
Groomed LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 1.3 -0.20 1.1
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 37* - n/a
Jet mass
Trimmed jet mass
CMS_2013_I1224539 7000 n/a - n/a
Generalized angularities
Multiplicity λ00
CMS_2021_I1920187 13000 1.4* -0.30 1.1*
Generalized angularities
Groomed multiplicity λ00
CMS_2021_I1920187 13000 1.5* -0.30 1.2*
Generalized angularities
Multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 1.1* +0.100 1.2*
Generalized angularities
Groomed multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 1.2* 0 1.2*
Jet pT
ATLAS_2017_I1514251 13000 4.3* - n/a
ATLAS_2020_I1788444 13000 n/a - n/a
ATLAS_2022_I2077570 13000 60 - n/a
Jet pT ratio
CMS_2020_I1776758 13000 0.51 +0.59 1.1*
CMS_2021_I1847230 8000 n/a - n/a
Generalized angularities
(pDT)2 λ20
CMS_2021_I1920187 13000 1.7 -0.40 1.3
Generalized angularities
(pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 0.92* -0.020 0.90*
Generalized angularities
Groomed (pDT)2 λ20
CMS_2021_I1920187 13000 2.1 -0.50 1.6
Generalized angularities
Groomed (pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 0.98* +0.020 1.0*
Generalized angularities
Thrust λ12
CMS_2021_I1920187 13000 6.3 -2.0 4.3
Generalized angularities
Thrust λ12 (charged only)
CMS_2021_I1920187 13000 1.5 -0.30 1.2
Generalized angularities
Groomed thrust λ12
CMS_2021_I1920187 13000 3.2 -0.90 2.3
Generalized angularities
Groomed thrust λ12 (charged only)
CMS_2021_I1920187 13000 1.6 -0.40 1.2
Generalized angularities
Width λ11
CMS_2021_I1920187 13000 3.5 -0.90 2.6
Generalized angularities
Width λ11 (charged only)
CMS_2021_I1920187 13000 0.99 -0.100 0.89
Generalized angularities
Groomed width λ11
CMS_2021_I1920187 13000 2.5 -0.80 1.7
Generalized angularities
Groomed width λ11 (charged only)
CMS_2021_I1920187 13000 1.4 -0.20 1.2
Jet rapidity
ATLAS_2017_I1514251 13000 13 0 13
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 20 +5.0 25*
ATLAS_2020_I1788444 13000 n/a - n/a
ΔrelpT(jets)
CMS_2021_I1866118 13000 8.4 -3.6 4.8
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 1.8* -0.30 1.5*
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 2.4* -0.70 1.7*
pT Z
ATLAS_2020_I1788444 13000 n/a - n/a
ATLAS_2022_I2077570 13000 n/a - n/a
CMS_2020_I1837084 13000 31 +14 45
pT(Z) to pT(jet) ratio
ATLAS_2022_I2077570 13000 n/a - n/a
Dilepton
pT ratio
CMS_2020_I1776758 13000 0.91 -0.63 0.28
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 290* - n/a
Δφ (jet, Z)
ATLAS_2020_I1788444 13000 n/a - n/a
CMS_2021_I1866118 13000 3.7 +0.100 3.8
pT balance (jet, Z)
CMS_2021_I1866118 13000 4.0 +0.100 4.1
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 86 - n/a
Δφ (dijet, Z)
CMS_2021_I1866118 13000 4.8 +2.2 7.0
pT balance (dijet, Z)
CMS_2021_I1866118 13000 6.9 +1.5 8.4

* 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.