Generator / tune

Details for Pythia 6.427 346 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 3.8* -2.4 1.4*
Underlying event
pT spectrum
ATLAS_2019_I1736531 13000 6.4* -2.4 4.0*
Generalized angularities
LHA λ10.5
CMS_2021_I1920187 13000 0.78 +0.060 0.84
Generalized angularities
LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 1.3 +0.40 1.7
Generalized angularities
Groomed LHA λ10.5
CMS_2021_I1920187 13000 0.67 +0.090 0.76
Generalized angularities
Groomed LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 0.94 +0.36 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 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 3.2 +1.3 4.5*
Generalized angularities
Groomed multiplicity λ00
CMS_2021_I1920187 13000 1.8* +0.80 2.6*
Generalized angularities
Multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 4.7* +2.0 6.7*
Generalized angularities
Groomed multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 3.6* +1.7 5.3*
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 1.1 - n/a
CMS_2021_I1847230 8000 n/a - n/a
Generalized angularities
(pDT)2 λ20
CMS_2021_I1920187 13000 2.4 +0.70 3.1
Generalized angularities
(pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 3.4* +0.70 4.1*
Generalized angularities
Groomed (pDT)2 λ20
CMS_2021_I1920187 13000 2.1 +0.30 2.4
Generalized angularities
Groomed (pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 2.3* +0.70 3.0*
Generalized angularities
Thrust λ12
CMS_2021_I1920187 13000 1.6 -0.60 1.0
Generalized angularities
Thrust λ12 (charged only)
CMS_2021_I1920187 13000 1.2 +0.10 1.3
Generalized angularities
Groomed thrust λ12
CMS_2021_I1920187 13000 1.2 -0.32 0.88
Generalized angularities
Groomed thrust λ12 (charged only)
CMS_2021_I1920187 13000 1.00 0 1.0
Generalized angularities
Width λ11
CMS_2021_I1920187 13000 0.84 -0.090 0.75
Generalized angularities
Width λ11 (charged only)
CMS_2021_I1920187 13000 1.0 +0.30 1.3
Generalized angularities
Groomed width λ11
CMS_2021_I1920187 13000 0.89 -0.15 0.74
Generalized angularities
Groomed width λ11 (charged only)
CMS_2021_I1920187 13000 1.0 +0.20 1.2
Jet rapidity
ATLAS_2017_I1514251 13000 15 +1.0 16
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 19* +8.0 27
ATLAS_2020_I1788444 13000 n/a - n/a
ΔrelpT(jets)
CMS_2021_I1866118 13000 7.3 +2.0 9.3
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 1.4* -0.45 0.95*
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 1.8* -0.60 1.2*
pT Z
ATLAS_2020_I1788444 13000 n/a - n/a
ATLAS_2022_I2077570 13000 n/a - n/a
CMS_2020_I1837084 13000 27 +15 42
pT(Z) to pT(jet) ratio
ATLAS_2022_I2077570 13000 n/a - n/a
Dilepton
pT ratio
CMS_2020_I1776758 13000 0.72 -0.24 0.48*
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 4.3 +0.40 4.7
pT balance (jet, Z)
CMS_2021_I1866118 13000 4.5 +0.100 4.6
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 6.2 +1.8 8.0
pT balance (dijet, Z)
CMS_2021_I1866118 13000 6.7 +7.3 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.