Generator / tune

Details for Pythia 6.427 378 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 1.0* +0.10 1.1*
Underlying event
pT spectrum
ATLAS_2019_I1736531 13000 4.2* -0.60 3.6*
Generalized angularities
LHA λ10.5
CMS_2021_I1920187 13000 2.8 -0.70 2.1
Generalized angularities
LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 1.2 -0.21 0.99
Generalized angularities
Groomed LHA λ10.5
CMS_2021_I1920187 13000 2.1 -0.50 1.6
Generalized angularities
Groomed LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 1.4 -0.43 0.97
Jet mass
Jet mass
CMS_2013_I1224539 7000 6.0* - n/a
Jet mass
Filtered jet mass
CMS_2013_I1224539 7000 n/a - n/a
Jet mass
Pruned jet mass
CMS_2013_I1224539 7000 20* - n/a
Jet mass
Trimmed jet mass
CMS_2013_I1224539 7000 n/a - n/a
Generalized angularities
Multiplicity λ00
CMS_2021_I1920187 13000 1.0* -0.12 0.88*
Generalized angularities
Groomed multiplicity λ00
CMS_2021_I1920187 13000 1.3* 0 1.3*
Generalized angularities
Multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 1.3* +0.60 1.9*
Generalized angularities
Groomed multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 1.1* +0.30 1.4*
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 n/a - 1.9*
CMS_2021_I1847230 8000 n/a - n/a
Generalized angularities
(pDT)2 λ20
CMS_2021_I1920187 13000 1.5 -0.30 1.2
Generalized angularities
(pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 0.75* +0.19 0.94*
Generalized angularities
Groomed (pDT)2 λ20
CMS_2021_I1920187 13000 1.9 -0.60 1.3
Generalized angularities
Groomed (pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 0.95* -0.010 0.94*
Generalized angularities
Thrust λ12
CMS_2021_I1920187 13000 4.9 -1.8 3.1
Generalized angularities
Thrust λ12 (charged only)
CMS_2021_I1920187 13000 1.2 -0.28 0.92
Generalized angularities
Groomed thrust λ12
CMS_2021_I1920187 13000 2.8 -1.00 1.8
Generalized angularities
Groomed thrust λ12 (charged only)
CMS_2021_I1920187 13000 1.4 -0.40 1.00
Generalized angularities
Width λ11
CMS_2021_I1920187 13000 2.6 -0.70 1.9
Generalized angularities
Width λ11 (charged only)
CMS_2021_I1920187 13000 0.97* -0.18 0.79
Generalized angularities
Groomed width λ11
CMS_2021_I1920187 13000 2.1 -0.60 1.5
Generalized angularities
Groomed width λ11 (charged only)
CMS_2021_I1920187 13000 1.4 -0.43 0.97
Jet rapidity
ATLAS_2017_I1514251 13000 7.5 +0.80 8.3
ATLAS_2019_I1744201 8000 30* - n/a
ATLAS_2020_I1788444 13000 13 - n/a
Dijet
ΔR
ATLAS_2020_I1788444 13000 7.5 - n/a
CMS_2021_I1847230 8000 n/a - n/a
Dijet
Δφ
ATLAS_2017_I1514251 13000 13* -2.0 11
ATLAS_2020_I1788444 13000 8.8 - n/a
ΔrelpT(jets)
CMS_2021_I1866118 13000 4.3 +0.30 4.6
Dijet
Δy
ATLAS_2020_I1788444 13000 12 - 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 6.6 - n/a
Underlying event
Nch
ATLAS_2019_I1736531 13000 1.0* -0.100 0.90*
Jet Multiplicities
Jet multiplicity
ATLAS_2017_I1514251 13000 n/a - n/a
ATLAS_2020_I1788444 13000 36 - 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 1.6* -0.50 1.1*
pT Z
ATLAS_2020_I1788444 13000 n/a - n/a
ATLAS_2022_I2077570 13000 n/a - n/a
CMS_2020_I1837084 13000 24 +13 37
pT(Z) to pT(jet) ratio
ATLAS_2022_I2077570 13000 n/a - n/a
Dilepton
pT ratio
CMS_2020_I1776758 13000 0.62* -0.18 0.44
y Z
ATLAS_2020_I1788444 13000 11 - n/a
ΔR (jet, Z)
ATLAS_2020_I1788444 13000 24 - n/a
ΔRmin (jet, Z)
ATLAS_2022_I2077570 13000 n/a - n/a
Δφ (jet, Z)
ATLAS_2020_I1788444 13000 29 - n/a
CMS_2021_I1866118 13000 1.7 -0.20 1.5
pT balance (jet, Z)
CMS_2021_I1866118 13000 2.5 +0.40 2.9
Δy (jet, Z)
ATLAS_2020_I1788444 13000 12 - 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 4.0 -1.2 2.8
pT balance (dijet, Z)
CMS_2021_I1866118 13000 5.2 -0.20 5.0

* 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.