Generator / tune

Details for Pythia 6.426 358 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 2.5* -0.70 1.8*
Underlying event
pT spectrum
ATLAS_2019_I1736531 13000 3.1* +0.90 4.0*
Generalized angularities
LHA λ10.5
CMS_2021_I1920187 13000 3.3 +0.10 3.4
Generalized angularities
LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 1.1 +0.30 1.4
Generalized angularities
Groomed LHA λ10.5
CMS_2021_I1920187 13000 2.3 0 2.3
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 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 30* +7.0 37*
Jet mass
Trimmed jet mass
CMS_2013_I1224539 7000 34* - n/a
Generalized angularities
Multiplicity λ00
CMS_2021_I1920187 13000 1.1* +0.30 1.4*
Generalized angularities
Groomed multiplicity λ00
CMS_2021_I1920187 13000 1.3* +0.20 1.5*
Generalized angularities
Multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 1.4* -0.30 1.1*
Generalized angularities
Groomed multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 1.2* 0 1.2*
Jet pT
ATLAS_2017_I1514251 13000 21* -17 4.3*
ATLAS_2020_I1788444 13000 n/a - n/a
ATLAS_2022_I2077570 13000 n/a - 60
Jet pT ratio
CMS_2020_I1776758 13000 0.85* -0.34 0.51
CMS_2021_I1847230 8000 n/a - n/a
Generalized angularities
(pDT)2 λ20
CMS_2021_I1920187 13000 1.8 -0.10 1.7
Generalized angularities
(pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 0.88* +0.040 0.92*
Generalized angularities
Groomed (pDT)2 λ20
CMS_2021_I1920187 13000 2.1 0 2.1
Generalized angularities
Groomed (pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 1.0* -0.020 0.98*
Generalized angularities
Thrust λ12
CMS_2021_I1920187 13000 5.9 +0.40 6.3
Generalized angularities
Thrust λ12 (charged only)
CMS_2021_I1920187 13000 1.4 +0.10 1.5
Generalized angularities
Groomed thrust λ12
CMS_2021_I1920187 13000 3.1 +0.10 3.2
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 3.3 +0.20 3.5
Generalized angularities
Width λ11 (charged only)
CMS_2021_I1920187 13000 0.95 +0.040 0.99
Generalized angularities
Groomed width λ11
CMS_2021_I1920187 13000 2.5 0 2.5
Generalized angularities
Groomed width λ11 (charged only)
CMS_2021_I1920187 13000 1.4 0 1.4
Jet rapidity
ATLAS_2017_I1514251 13000 13 0 13
ATLAS_2019_I1744201 8000 26* - 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 15 +5.0 20
ATLAS_2020_I1788444 13000 n/a - n/a
ΔrelpT(jets)
CMS_2021_I1866118 13000 8.7 -0.30 8.4
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 2.7* -0.90 1.8*
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 2.9* -0.50 2.4*
pT Z
ATLAS_2020_I1788444 13000 n/a - n/a
ATLAS_2022_I2077570 13000 n/a - n/a
CMS_2020_I1837084 13000 33 -2.0 31
pT(Z) to pT(jet) ratio
ATLAS_2022_I2077570 13000 n/a - n/a
Dilepton
pT ratio
CMS_2020_I1776758 13000 2.3* -1.4 0.91
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 - 290*
Δφ (jet, Z)
ATLAS_2020_I1788444 13000 n/a - n/a
CMS_2021_I1866118 13000 3.9 -0.20 3.7
pT balance (jet, Z)
CMS_2021_I1866118 13000 4.3 -0.30 4.0
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 - 86
Δφ (dijet, Z)
CMS_2021_I1866118 13000 n/a - 4.8
pT balance (dijet, Z)
CMS_2021_I1866118 13000 6.7 +0.20 6.9

* 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.