Generator / tune

Details for Pythia 6.426 d6t 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 1.8* +0.60 2.4*
Underlying event
pT spectrum
ATLAS_2019_I1736531 13000 3.2* +0.20 3.4*
Generalized angularities
LHA λ10.5
CMS_2021_I1920187 13000 3.6 -0.40 3.2
Generalized angularities
LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 1.6 -0.20 1.4
Generalized angularities
Groomed LHA λ10.5
CMS_2021_I1920187 13000 2.1 -0.10 2.0
Generalized angularities
Groomed LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 1.5 -0.30 1.2
Jet mass
Jet mass
CMS_2013_I1224539 7000 n/a - 37*
Jet mass
Filtered jet mass
CMS_2013_I1224539 7000 36* +20 56*
Jet mass
Pruned jet mass
CMS_2013_I1224539 7000 n/a - 68*
Jet mass
Trimmed jet mass
CMS_2013_I1224539 7000 31* - n/a
Generalized angularities
Multiplicity λ00
CMS_2021_I1920187 13000 1.2* +0.30 1.5*
Generalized angularities
Groomed multiplicity λ00
CMS_2021_I1920187 13000 1.3* -0.30 1.0*
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 0.88* +0.42 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 1.5* -1.1 0.38
CMS_2021_I1847230 8000 n/a - n/a
Generalized angularities
(pDT)2 λ20
CMS_2021_I1920187 13000 1.6 -0.30 1.3
Generalized angularities
(pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 1.1* -0.24 0.86*
Generalized angularities
Groomed (pDT)2 λ20
CMS_2021_I1920187 13000 1.6 -0.20 1.4
Generalized angularities
Groomed (pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 0.85* +0.030 0.88*
Generalized angularities
Thrust λ12
CMS_2021_I1920187 13000 6.4 -0.60 5.8
Generalized angularities
Thrust λ12 (charged only)
CMS_2021_I1920187 13000 1.8 -0.30 1.5
Generalized angularities
Groomed thrust λ12
CMS_2021_I1920187 13000 2.9 -0.30 2.6
Generalized angularities
Groomed thrust λ12 (charged only)
CMS_2021_I1920187 13000 1.5 -0.20 1.3
Generalized angularities
Width λ11
CMS_2021_I1920187 13000 3.4 -0.40 3.0
Generalized angularities
Width λ11 (charged only)
CMS_2021_I1920187 13000 1.2 -0.20 1.0
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 1.5 -0.30 1.2
Jet rapidity
ATLAS_2017_I1514251 13000 6.0 -3.3 2.7
ATLAS_2019_I1744201 8000 28* +21 49*
ATLAS_2020_I1788444 13000 n/a - 19
Dijet
ΔR
ATLAS_2020_I1788444 13000 n/a - 12
CMS_2021_I1847230 8000 n/a - n/a
Dijet
Δφ
ATLAS_2017_I1514251 13000 30* -7.0 23*
ATLAS_2020_I1788444 13000 n/a - 14
ΔrelpT(jets)
CMS_2021_I1866118 13000 18 -6.0 12
Dijet
Δy
ATLAS_2020_I1788444 13000 n/a - 21
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 - 17
Underlying event
Nch
ATLAS_2019_I1736531 13000 1.1* -0.10 1.0*
Jet Multiplicities
Jet multiplicity
ATLAS_2017_I1514251 13000 n/a - n/a
ATLAS_2020_I1788444 13000 n/a - 58
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 1.7*
pT Z
ATLAS_2020_I1788444 13000 n/a - 25*
ATLAS_2022_I2077570 13000 n/a - n/a
CMS_2020_I1837084 13000 51 -3.0 48
pT(Z) to pT(jet) ratio
ATLAS_2022_I2077570 13000 n/a - n/a
Dilepton
pT ratio
CMS_2020_I1776758 13000 2.1* -0.10 2.0*
y Z
ATLAS_2020_I1788444 13000 n/a - 17
ΔR (jet, Z)
ATLAS_2020_I1788444 13000 n/a - 150
ΔRmin (jet, Z)
ATLAS_2022_I2077570 13000 n/a - n/a
Δφ (jet, Z)
ATLAS_2020_I1788444 13000 n/a - 140
CMS_2021_I1866118 13000 9.2 +0.80 10
pT balance (jet, Z)
CMS_2021_I1866118 13000 19 +4.0 23
Δy (jet, Z)
ATLAS_2020_I1788444 13000 n/a - 23
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 6.8 -2.1 4.7
pT balance (dijet, Z)
CMS_2021_I1866118 13000 8.4 +0.100 8.5

* 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.