Generator / tune

Details for Pythia 6.427 357 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 1.4* -0.100 1.3*
Underlying event
pT spectrum
ATLAS_2019_I1736531 13000 4.4* -0.40 4.0*
Generalized angularities
LHA λ10.5
CMS_2021_I1920187 13000 2.4 -0.60 1.8
Generalized angularities
LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 0.93 -0.050 0.88
Generalized angularities
Groomed LHA λ10.5
CMS_2021_I1920187 13000 1.9 -0.40 1.5
Generalized angularities
Groomed LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 1.1 -0.14 0.96
Jet mass
Jet mass
CMS_2013_I1224539 7000 16* - n/a
Jet mass
Filtered jet mass
CMS_2013_I1224539 7000 33* - n/a
Jet mass
Pruned jet mass
CMS_2013_I1224539 7000 38* - n/a
Jet mass
Trimmed jet mass
CMS_2013_I1224539 7000 75* - n/a
Generalized angularities
Multiplicity λ00
CMS_2021_I1920187 13000 1.0 -0.080 0.92*
Generalized angularities
Groomed multiplicity λ00
CMS_2021_I1920187 13000 1.4* -0.30 1.1*
Generalized angularities
Multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 1.6* +0.30 1.9*
Generalized angularities
Groomed multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 1.4* -0.20 1.2*
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 n/a - 0.42*
CMS_2021_I1847230 8000 n/a - n/a
Generalized angularities
(pDT)2 λ20
CMS_2021_I1920187 13000 1.2 -0.20 1.0
Generalized angularities
(pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 0.98* -0.010 0.97*
Generalized angularities
Groomed (pDT)2 λ20
CMS_2021_I1920187 13000 1.6 -0.30 1.3
Generalized angularities
Groomed (pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 0.90* +0.010 0.91*
Generalized angularities
Thrust λ12
CMS_2021_I1920187 13000 3.9 -1.1 2.8
Generalized angularities
Thrust λ12 (charged only)
CMS_2021_I1920187 13000 0.97 -0.16 0.81
Generalized angularities
Groomed thrust λ12
CMS_2021_I1920187 13000 2.7 -0.80 1.9
Generalized angularities
Groomed thrust λ12 (charged only)
CMS_2021_I1920187 13000 1.2 -0.31 0.89
Generalized angularities
Width λ11
CMS_2021_I1920187 13000 2.5 -0.60 1.9*
Generalized angularities
Width λ11 (charged only)
CMS_2021_I1920187 13000 0.76 -0.090 0.67
Generalized angularities
Groomed width λ11
CMS_2021_I1920187 13000 2.0 -0.60 1.4
Generalized angularities
Groomed width λ11 (charged only)
CMS_2021_I1920187 13000 1.2 -0.100 1.1
Jet rapidity
ATLAS_2017_I1514251 13000 12 +3.0 15
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* +3.0 17
ATLAS_2020_I1788444 13000 n/a - n/a
ΔrelpT(jets)
CMS_2021_I1866118 13000 5.5 +0.50 6.0
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 1.1* +0.100 1.2*
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 1.3* -0.10 1.2*
pT Z
ATLAS_2020_I1788444 13000 n/a - n/a
ATLAS_2022_I2077570 13000 n/a - n/a
CMS_2020_I1837084 13000 34 +9.0 43
pT(Z) to pT(jet) ratio
ATLAS_2022_I2077570 13000 n/a - n/a
Dilepton
pT ratio
CMS_2020_I1776758 13000 1.3 -0.73 0.57
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 5.8 -0.50 5.3
pT balance (jet, Z)
CMS_2021_I1866118 13000 6.5 -2.3 4.2
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 7.4 -2.3 5.1
pT balance (dijet, Z)
CMS_2021_I1866118 13000 7.1 -2.8 4.3

* 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.