Generator / tune

Details for Pythia 6.426 z2 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 2.9* +0.10 3.0*
Underlying event
pT spectrum
ATLAS_2019_I1736531 13000 5.1* 0 5.1*
Generalized angularities
LHA λ10.5
CMS_2021_I1920187 13000 5.8 -0.100 5.7
Generalized angularities
LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 2.2 +0.100 2.3
Generalized angularities
Groomed LHA λ10.5
CMS_2021_I1920187 13000 3.9 0 3.9
Generalized angularities
Groomed LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 2.4 0 2.4
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 - 41*
Jet mass
Trimmed jet mass
CMS_2013_I1224539 7000 n/a - n/a
Generalized angularities
Multiplicity λ00
CMS_2021_I1920187 13000 1.8* -0.50 1.3*
Generalized angularities
Groomed multiplicity λ00
CMS_2021_I1920187 13000 2.2* -0.40 1.8*
Generalized angularities
Multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 1.1* 0 1.1*
Generalized angularities
Groomed multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 1.8* -0.50 1.3*
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 0.67 +0.27 0.94*
CMS_2021_I1847230 8000 n/a - n/a
Generalized angularities
(pDT)2 λ20
CMS_2021_I1920187 13000 2.2 -0.20 2.0
Generalized angularities
(pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 1.1* 0 1.1*
Generalized angularities
Groomed (pDT)2 λ20
CMS_2021_I1920187 13000 2.9 -0.20 2.7
Generalized angularities
Groomed (pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 1.3* +0.100 1.4*
Generalized angularities
Thrust λ12
CMS_2021_I1920187 13000 9.8 -0.60 9.2
Generalized angularities
Thrust λ12 (charged only)
CMS_2021_I1920187 13000 2.8 -0.40 2.4
Generalized angularities
Groomed thrust λ12
CMS_2021_I1920187 13000 5.4 -0.10 5.3
Generalized angularities
Groomed thrust λ12 (charged only)
CMS_2021_I1920187 13000 2.6 0 2.6
Generalized angularities
Width λ11
CMS_2021_I1920187 13000 5.3 +0.30 5.6*
Generalized angularities
Width λ11 (charged only)
CMS_2021_I1920187 13000 1.8 -0.10 1.7
Generalized angularities
Groomed width λ11
CMS_2021_I1920187 13000 4.1 0 4.1
Generalized angularities
Groomed width λ11 (charged only)
CMS_2021_I1920187 13000 2.7 -0.10 2.6
Jet rapidity
ATLAS_2017_I1514251 13000 11 +2.0 13
ATLAS_2019_I1744201 8000 n/a - 58*
ATLAS_2020_I1788444 13000 17 - 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 16* +2.0 18
ATLAS_2020_I1788444 13000 n/a - n/a
ΔrelpT(jets)
CMS_2021_I1866118 13000 4.2 +1.7 5.9
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 2.4* -0.40 2.0*
Jet Multiplicities
Jet multiplicity
ATLAS_2017_I1514251 13000 n/a - n/a
ATLAS_2020_I1788444 13000 68 - 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 3.1* -0.60 2.5*
pT Z
ATLAS_2020_I1788444 13000 n/a - n/a
ATLAS_2022_I2077570 13000 57 - n/a
CMS_2020_I1837084 13000 32 +2.0 34
pT(Z) to pT(jet) ratio
ATLAS_2022_I2077570 13000 n/a - n/a
Dilepton
pT ratio
CMS_2020_I1776758 13000 1.5 -0.77 0.73
y Z
ATLAS_2020_I1788444 13000 15 - n/a
ΔR (jet, Z)
ATLAS_2020_I1788444 13000 50 - n/a
ΔRmin (jet, Z)
ATLAS_2022_I2077570 13000 n/a - 120*
Δφ (jet, Z)
ATLAS_2020_I1788444 13000 62 - n/a
CMS_2021_I1866118 13000 4.6 -0.30 4.3
pT balance (jet, Z)
CMS_2021_I1866118 13000 3.8 +2.0 5.8
Δy (jet, Z)
ATLAS_2020_I1788444 13000 19 - n/a
HT(Z+jets)
ATLAS_2017_I1514251 13000 n/a - n/a
ATLAS_2022_I2077570 13000 92 - n/a
Δφ (dijet, Z)
CMS_2021_I1866118 13000 4.6 - n/a
pT balance (dijet, Z)
CMS_2021_I1866118 13000 7.3 +0.30 7.6

* 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 1429 histograms.