Generator / tune

Details for Pythia 6.426 dw 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 1.7* -0.40 1.3*
Underlying event
pT spectrum
ATLAS_2019_I1736531 13000 2.9* -0.30 2.6*
Generalized angularities
LHA λ10.5
CMS_2021_I1920187 13000 4.1 +0.10 4.2
Generalized angularities
LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 1.6 +0.30 1.9
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 1.5 +0.10 1.6
Jet mass
Jet mass
CMS_2013_I1224539 7000 35* - n/a
Jet mass
Filtered jet mass
CMS_2013_I1224539 7000 26* - n/a
Jet mass
Pruned jet mass
CMS_2013_I1224539 7000 45* - n/a
Jet mass
Trimmed jet mass
CMS_2013_I1224539 7000 35* - n/a
Generalized angularities
Multiplicity λ00
CMS_2021_I1920187 13000 1.3* -0.20 1.1*
Generalized angularities
Groomed multiplicity λ00
CMS_2021_I1920187 13000 0.95* +0.15 1.1*
Generalized angularities
Multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 1.5* +0.30 1.8*
Generalized angularities
Groomed multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 0.94* +0.050 0.99*
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 0.75* +1.3 2.0*
CMS_2021_I1847230 8000 n/a - n/a
Generalized angularities
(pDT)2 λ20
CMS_2021_I1920187 13000 1.5 +0.40 1.9
Generalized angularities
(pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 0.94* +0.060 1.0*
Generalized angularities
Groomed (pDT)2 λ20
CMS_2021_I1920187 13000 1.5 +0.40 1.9
Generalized angularities
Groomed (pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 0.95* +0.010 0.96*
Generalized angularities
Thrust λ12
CMS_2021_I1920187 13000 8.1 +0.30 8.4
Generalized angularities
Thrust λ12 (charged only)
CMS_2021_I1920187 13000 2.4 +0.30 2.7
Generalized angularities
Groomed thrust λ12
CMS_2021_I1920187 13000 3.1 -0.10 3.0
Generalized angularities
Groomed thrust λ12 (charged only)
CMS_2021_I1920187 13000 1.5 0 1.5
Generalized angularities
Width λ11
CMS_2021_I1920187 13000 3.9 +0.20 4.1
Generalized angularities
Width λ11 (charged only)
CMS_2021_I1920187 13000 1.3 +0.20 1.5
Generalized angularities
Groomed width λ11
CMS_2021_I1920187 13000 2.4 -0.10 2.3
Generalized angularities
Groomed width λ11 (charged only)
CMS_2021_I1920187 13000 1.5 +0.10 1.6
Jet rapidity
ATLAS_2017_I1514251 13000 5.0 +3.6 8.6
ATLAS_2019_I1744201 8000 49* - 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 32* +21 53*
ATLAS_2020_I1788444 13000 n/a - n/a
ΔrelpT(jets)
CMS_2021_I1866118 13000 13 0 13
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 3.2* -0.60 2.6*
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 2.8* -0.70 2.1*
pT Z
ATLAS_2020_I1788444 13000 n/a - n/a
ATLAS_2022_I2077570 13000 n/a - n/a
CMS_2020_I1837084 13000 49 +3.0 52
pT(Z) to pT(jet) ratio
ATLAS_2022_I2077570 13000 n/a - n/a
Dilepton
pT ratio
CMS_2020_I1776758 13000 1.2 +0.50 1.7*
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 5.4 +2.0 7.4
pT balance (jet, Z)
CMS_2021_I1866118 13000 20 -4.0 16
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 4.2 +0.30 4.5
pT balance (dijet, Z)
CMS_2021_I1866118 13000 5.0 +2.7 7.7

* 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.