Generator / tune

Details for Pythia 6.426 359 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 2.1* -0.90 1.2*
Underlying event
pT spectrum
ATLAS_2019_I1736531 13000 4.2* -0.80 3.4*
Generalized angularities
LHA λ10.5
CMS_2021_I1920187 13000 3.6 +0.10 3.7
Generalized angularities
LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 1.4 0 1.4
Generalized angularities
Groomed LHA λ10.5
CMS_2021_I1920187 13000 2.3 +0.20 2.5
Generalized angularities
Groomed LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 1.3 0 1.3
Jet mass
Jet mass
CMS_2013_I1224539 7000 15* +60 75*
Jet mass
Filtered jet mass
CMS_2013_I1224539 7000 n/a - 150*
Jet mass
Pruned jet mass
CMS_2013_I1224539 7000 24* +120 140*
Jet mass
Trimmed jet mass
CMS_2013_I1224539 7000 27* +93 120*
Generalized angularities
Multiplicity λ00
CMS_2021_I1920187 13000 1.3* -0.20 1.1*
Generalized angularities
Groomed multiplicity λ00
CMS_2021_I1920187 13000 1.4* +0.10 1.5*
Generalized angularities
Multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 1.2* -0.100 1.1*
Generalized angularities
Groomed multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 0.98* -0.14 0.84*
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 0.51 +0.13 0.64*
CMS_2021_I1847230 8000 n/a - n/a
Generalized angularities
(pDT)2 λ20
CMS_2021_I1920187 13000 1.9 -0.100 1.8
Generalized angularities
(pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 0.99* -0.19 0.80
Generalized angularities
Groomed (pDT)2 λ20
CMS_2021_I1920187 13000 2.1* +0.20 2.3
Generalized angularities
Groomed (pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 1.1* -0.10 1.00*
Generalized angularities
Thrust λ12
CMS_2021_I1920187 13000 6.7 -0.30 6.4
Generalized angularities
Thrust λ12 (charged only)
CMS_2021_I1920187 13000 1.8 -0.20 1.6
Generalized angularities
Groomed thrust λ12
CMS_2021_I1920187 13000 3.3 -0.20 3.1
Generalized angularities
Groomed thrust λ12 (charged only)
CMS_2021_I1920187 13000 1.5 +0.10 1.6
Generalized angularities
Width λ11
CMS_2021_I1920187 13000 3.4 +0.20 3.6
Generalized angularities
Width λ11 (charged only)
CMS_2021_I1920187 13000 1.2 -0.20 1.0
Generalized angularities
Groomed width λ11
CMS_2021_I1920187 13000 2.4 0 2.4
Generalized angularities
Groomed width λ11 (charged only)
CMS_2021_I1920187 13000 1.5 0 1.5
Jet rapidity
ATLAS_2017_I1514251 13000 16 -2.0 14
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 22* +8.0 30*
ATLAS_2020_I1788444 13000 n/a - n/a
ΔrelpT(jets)
CMS_2021_I1866118 13000 10 0 10
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 4.0* -1.9 2.1*
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 3.5* -1.4 2.1*
pT Z
ATLAS_2020_I1788444 13000 n/a - n/a
ATLAS_2022_I2077570 13000 n/a - 61
CMS_2020_I1837084 13000 31 +3.0 34
pT(Z) to pT(jet) ratio
ATLAS_2022_I2077570 13000 n/a - n/a
Dilepton
pT ratio
CMS_2020_I1776758 13000 0.67* +0.33 1.0*
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 4.0 +2.0 6.0
pT balance (jet, Z)
CMS_2021_I1866118 13000 4.1 +3.4 7.5
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 - 100
Δφ (dijet, Z)
CMS_2021_I1866118 13000 n/a - n/a
pT balance (dijet, Z)
CMS_2021_I1866118 13000 9.3 - n/a

* 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.