Generator / tune

Details for Pythia 6.426 357 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 1.6* -0.20 1.4*
Underlying event
pT spectrum
ATLAS_2019_I1736531 13000 4.2* +0.20 4.4*
Generalized angularities
LHA λ10.5
CMS_2021_I1920187 13000 2.6 -0.20 2.4
Generalized angularities
LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 1.0 -0.070 0.93
Generalized angularities
Groomed LHA λ10.5
CMS_2021_I1920187 13000 2.0 -0.10 1.9
Generalized angularities
Groomed LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 1.1 0 1.1
Jet mass
Jet mass
CMS_2013_I1224539 7000 n/a - 16*
Jet mass
Filtered jet mass
CMS_2013_I1224539 7000 n/a - 33*
Jet mass
Pruned jet mass
CMS_2013_I1224539 7000 n/a - 38*
Jet mass
Trimmed jet mass
CMS_2013_I1224539 7000 n/a - 75*
Generalized angularities
Multiplicity λ00
CMS_2021_I1920187 13000 0.94* +0.060 1.0
Generalized angularities
Groomed multiplicity λ00
CMS_2021_I1920187 13000 1.2* +0.20 1.4*
Generalized angularities
Multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 1.9* -0.30 1.6*
Generalized angularities
Groomed multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 1.3* +0.100 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 0.94* - n/a
CMS_2021_I1847230 8000 n/a - n/a
Generalized angularities
(pDT)2 λ20
CMS_2021_I1920187 13000 0.94 +0.26 1.2
Generalized angularities
(pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 0.88* +0.100 0.98*
Generalized angularities
Groomed (pDT)2 λ20
CMS_2021_I1920187 13000 1.5 +0.10 1.6
Generalized angularities
Groomed (pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 0.90* 0 0.90*
Generalized angularities
Thrust λ12
CMS_2021_I1920187 13000 4.6 -0.70 3.9
Generalized angularities
Thrust λ12 (charged only)
CMS_2021_I1920187 13000 1.1 -0.13 0.97
Generalized angularities
Groomed thrust λ12
CMS_2021_I1920187 13000 3.0 -0.30 2.7
Generalized angularities
Groomed thrust λ12 (charged only)
CMS_2021_I1920187 13000 1.5 -0.30 1.2
Generalized angularities
Width λ11
CMS_2021_I1920187 13000 2.6 -0.10 2.5
Generalized angularities
Width λ11 (charged only)
CMS_2021_I1920187 13000 0.80 -0.040 0.76
Generalized angularities
Groomed width λ11
CMS_2021_I1920187 13000 2.2 -0.20 2.0
Generalized angularities
Groomed width λ11 (charged only)
CMS_2021_I1920187 13000 1.4 -0.20 1.2
Jet rapidity
ATLAS_2017_I1514251 13000 8.1 +3.9 12
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 24* -10 14*
ATLAS_2020_I1788444 13000 n/a - n/a
ΔrelpT(jets)
CMS_2021_I1866118 13000 6.9 -1.4 5.5
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 1.3* -0.20 1.1*
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 1.7* -0.40 1.3*
pT Z
ATLAS_2020_I1788444 13000 n/a - n/a
ATLAS_2022_I2077570 13000 n/a - n/a
CMS_2020_I1837084 13000 33 +1.0 34
pT(Z) to pT(jet) ratio
ATLAS_2022_I2077570 13000 n/a - n/a
Dilepton
pT ratio
CMS_2020_I1776758 13000 2.0* -0.70 1.3
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 3.0 +2.8 5.8
pT balance (jet, Z)
CMS_2021_I1866118 13000 5.4 +1.1 6.5
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 +3.2 7.4
pT balance (dijet, Z)
CMS_2021_I1866118 13000 4.7 +2.4 7.1

* 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.