Generator / tune

Details for Pythia 8.313 tune-2m vs. 8.315

pp/ppbar → Z+Jet


Observable Reference Energy χ2+5% (8.313) Δ χ2+5% (8.315)
Underlying event
 <pT>
 ATLAS_2019_I1736531 13000 - 4.4*
Underlying event
 pT spectrum
 ATLAS_2019_I1736531 13000 - 5.6*
Generalized angularities
 LHA λ10.5
 CMS_2021_I1920187 13000 - 4.8
Generalized angularities
 LHA λ10.5 (charged only)
 CMS_2021_I1920187 13000 - 1.9
Generalized angularities
 Groomed LHA λ10.5
 CMS_2021_I1920187 13000 - 2.7
Generalized angularities
 Groomed LHA λ10.5 (charged only)
 CMS_2021_I1920187 13000 - 1.8
Jet mass
 Jet mass
 CMS_2013_I1224539 7000 - 70
Jet mass
 Filtered jet mass
 CMS_2013_I1224539 7000 - 110
Jet mass
 Pruned jet mass
 CMS_2013_I1224539 7000 - 130
Jet mass
 Trimmed jet mass
 CMS_2013_I1224539 7000 - 270
Generalized angularities
 Multiplicity λ00
 CMS_2021_I1920187 13000 - 1.4*
Generalized angularities
 Groomed multiplicity λ00
 CMS_2021_I1920187 13000 - 1.5*
Generalized angularities
 Multiplicity λ00 (charged only)
 CMS_2021_I1920187 13000 - 1.1*
Generalized angularities
 Groomed multiplicity λ00 (charged only)
 CMS_2021_I1920187 13000 - 1.2*
Jet pT
 ATLAS_2017_I1514251 13000 - n/a
ATLAS_2020_I1788444 13000 - 11
ATLAS_2022_I2077570 13000 - 55
Jet pT ratio
 CMS_2020_I1776758 13000 - 0.72
CMS_2021_I1847230 8000 - n/a
Generalized angularities
 (pDT)2 λ20
 CMS_2021_I1920187 13000 - 2.6
Generalized angularities
 (pDT)2 λ20 (charged only)
 CMS_2021_I1920187 13000 - 1.2*
Generalized angularities
 Groomed (pDT)2 λ20
 CMS_2021_I1920187 13000 - 2.4
Generalized angularities
 Groomed (pDT)2 λ20 (charged only)
 CMS_2021_I1920187 13000 - 1.3*
Generalized angularities
 Thrust λ12
 CMS_2021_I1920187 13000 - 7.3
Generalized angularities
 Thrust λ12 (charged only)
 CMS_2021_I1920187 13000 - 2.3
Generalized angularities
 Groomed thrust λ12
 CMS_2021_I1920187 13000 - 3.2
Generalized angularities
 Groomed thrust λ12 (charged only)
 CMS_2021_I1920187 13000 - 1.7
Generalized angularities
 Width λ11
 CMS_2021_I1920187 13000 - 4.6*
Generalized angularities
 Width λ11 (charged only)
 CMS_2021_I1920187 13000 - 1.5
Generalized angularities
 Groomed width λ11
 CMS_2021_I1920187 13000 - 2.7
Generalized angularities
 Groomed width λ11 (charged only)
 CMS_2021_I1920187 13000 - 1.9
Jet rapidity
 ATLAS_2017_I1514251 13000 - 2.9
ATLAS_2019_I1744201 8000 - 21
ATLAS_2020_I1788444 13000 - 13
Dijet
 ΔR
 ATLAS_2020_I1788444 13000 - 13
CMS_2021_I1847230 8000 - n/a
Dijet
 Δφ
 ATLAS_2017_I1514251 13000 - 20
ATLAS_2020_I1788444 13000 - 7.9
ΔrelpT(jets)
 CMS_2021_I1866118 13000 - 13
Dijet
 Δy
 ATLAS_2020_I1788444 13000 - 13
Jet mass
 Dijet mass
 ATLAS_2017_I1514251 13000 - n/a
ATLAS_2020_I1788444 13000 - 11
Dijet
 pT
 ATLAS_2020_I1788444 13000 - n/a
Dijet
 pT ratio to m
 ATLAS_2020_I1788444 13000 - 15
Underlying event
 Nch
 ATLAS_2019_I1736531 13000 - 14*
Jet Multiplicities
 Jet multiplicity
 ATLAS_2017_I1514251 13000 - n/a
ATLAS_2020_I1788444 13000 - 16
ATLAS_2022_I2077570 13000 - n/a
njets_njets
 ATLAS_2017_I1514251 13000 - n/a
Underlying event
 Scalar Σ(pT)
 ATLAS_2019_I1736531 13000 - 9.8*
pT Z
 ATLAS_2020_I1788444 13000 - 31
ATLAS_2022_I2077570 13000 - 38
CMS_2020_I1837084 13000 - 2.0
pT(Z) to pT(jet) ratio
 ATLAS_2022_I2077570 13000 - n/a
Dilepton
 pT ratio
 CMS_2020_I1776758 13000 - 0.68
y Z
 ATLAS_2020_I1788444 13000 - 8.1
ΔR (jet, Z)
 ATLAS_2020_I1788444 13000 - 160
ΔRmin (jet, Z)
 ATLAS_2022_I2077570 13000 - 200
Δφ (jet, Z)
 ATLAS_2020_I1788444 13000 - 200
CMS_2021_I1866118 13000 - 11
pT balance (jet, Z)
 CMS_2021_I1866118 13000 - 9.3
Δy (jet, Z)
 ATLAS_2020_I1788444 13000 - 31
HT(Z+jets)
 ATLAS_2017_I1514251 13000 - n/a
ATLAS_2022_I2077570 13000 - 76
Δφ (dijet, Z)
 CMS_2021_I1866118 13000 - 8.2
pT balance (dijet, Z)
 CMS_2021_I1866118 13000 - 7.9

* 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 715 histograms.