Generator / tune

Details for Pythia 6.427 360 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 2.8* -0.30 2.5*
Underlying event
pT spectrum
ATLAS_2019_I1736531 13000 2.0* +0.80 2.8*
Generalized angularities
LHA λ10.5
CMS_2021_I1920187 13000 12 -2.2 9.8
Generalized angularities
LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 5.6 -1.0 4.6
Generalized angularities
Groomed LHA λ10.5
CMS_2021_I1920187 13000 7.1 -1.1 6.0
Generalized angularities
Groomed LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 4.6 -0.80 3.8
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 n/a - n/a
Jet mass
Trimmed jet mass
CMS_2013_I1224539 7000 n/a - n/a
Generalized angularities
Multiplicity λ00
CMS_2021_I1920187 13000 5.1* -1.4 3.7*
Generalized angularities
Groomed multiplicity λ00
CMS_2021_I1920187 13000 4.6* -1.00 3.6*
Generalized angularities
Multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 2.2* -1.0 1.2*
Generalized angularities
Groomed multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 2.9* -0.30 2.6*
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 1.8 +1.3 3.1
CMS_2021_I1847230 8000 n/a - n/a
Generalized angularities
(pDT)2 λ20
CMS_2021_I1920187 13000 7.7 -1.4 6.3
Generalized angularities
(pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 3.7* -0.60 3.1*
Generalized angularities
Groomed (pDT)2 λ20
CMS_2021_I1920187 13000 7.5 -1.6 5.9
Generalized angularities
Groomed (pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 3.3* -0.50 2.8*
Generalized angularities
Thrust λ12
CMS_2021_I1920187 13000 16 -4.0 12
Generalized angularities
Thrust λ12 (charged only)
CMS_2021_I1920187 13000 6.5 -1.5 5.0
Generalized angularities
Groomed thrust λ12
CMS_2021_I1920187 13000 7.7 -1.3 6.4
Generalized angularities
Groomed thrust λ12 (charged only)
CMS_2021_I1920187 13000 4.3 -0.90 3.4
Generalized angularities
Width λ11
CMS_2021_I1920187 13000 10 -1.8 8.2
Generalized angularities
Width λ11 (charged only)
CMS_2021_I1920187 13000 4.8 -0.90 3.9
Generalized angularities
Groomed width λ11
CMS_2021_I1920187 13000 6.6 -1.0 5.6
Generalized angularities
Groomed width λ11 (charged only)
CMS_2021_I1920187 13000 4.7 -0.70 4.0
Jet rapidity
ATLAS_2017_I1514251 13000 9.6 -2.5 7.1
ATLAS_2019_I1744201 8000 44* - 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 19* -11 8.0
ATLAS_2020_I1788444 13000 n/a - n/a
ΔrelpT(jets)
CMS_2021_I1866118 13000 4.4 -0.60 3.8
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 11* -3.4 7.6*
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 8.7* -2.5 6.2*
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 2.8 -0.60 2.2
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 2.8 -1.3 1.5
pT balance (jet, Z)
CMS_2021_I1866118 13000 5.7 -3.5 2.2
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 5.0 - n/a
pT balance (dijet, Z)
CMS_2021_I1866118 13000 3.8 +10 14

* 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.