Generator / tune

Details for Pythia 8.306 eetherm vs. 8.307

pp/ppbar → Z+Jet


Observable Reference Energy χ2+5% (8.306) Δ χ2+5% (8.307)
Underlying event
<pT>
ATLAS_2019_I1736531 13000 3.2* 0 3.2*
Underlying event
pT spectrum
ATLAS_2019_I1736531 13000 5.6* +0.70 6.3*
Generalized angularities
LHA λ10.5
CMS_2021_I1920187 13000 2.9 -0.20 2.7
Generalized angularities
LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 1.1 0 1.1
Generalized angularities
Groomed LHA λ10.5
CMS_2021_I1920187 13000 2.1 0 2.1
Generalized angularities
Groomed LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 1.2 0 1.2
Jet mass
Jet mass
CMS_2013_I1224539 7000 20 +2.0 22
Jet mass
Filtered jet mass
CMS_2013_I1224539 7000 89* -2.0 87
Jet mass
Pruned jet mass
CMS_2013_I1224539 7000 53* +1.0 54
Jet mass
Trimmed jet mass
CMS_2013_I1224539 7000 46 +27 73
Generalized angularities
Multiplicity λ00
CMS_2021_I1920187 13000 0.99* -0.070 0.92*
Generalized angularities
Groomed multiplicity λ00
CMS_2021_I1920187 13000 1.2* 0 1.2*
Generalized angularities
Multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 1.5* 0 1.5*
Generalized angularities
Groomed multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 1.2* 0 1.2*
Jet pT
ATLAS_2017_I1514251 13000 n/a - 49*
ATLAS_2020_I1788444 13000 n/a - n/a
ATLAS_2022_I2077570 13000 85 -1.0 84
Jet pT ratio
CMS_2020_I1776758 13000 1.4 -0.69 0.71*
CMS_2021_I1847230 8000 n/a - n/a
Generalized angularities
(pDT)2 λ20
CMS_2021_I1920187 13000 1.4 -0.20 1.2
Generalized angularities
(pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 0.99* -0.18 0.81*
Generalized angularities
Groomed (pDT)2 λ20
CMS_2021_I1920187 13000 1.6 0 1.6
Generalized angularities
Groomed (pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 0.94* -0.030 0.91*
Generalized angularities
Thrust λ12
CMS_2021_I1920187 13000 4.7 0 4.7
Generalized angularities
Thrust λ12 (charged only)
CMS_2021_I1920187 13000 1.1 +0.100 1.2
Generalized angularities
Groomed thrust λ12
CMS_2021_I1920187 13000 2.7 -0.10 2.6
Generalized angularities
Groomed thrust λ12 (charged only)
CMS_2021_I1920187 13000 1.3 0 1.3
Generalized angularities
Width λ11
CMS_2021_I1920187 13000 2.8 0 2.8
Generalized angularities
Width λ11 (charged only)
CMS_2021_I1920187 13000 0.84 +0.010 0.85
Generalized angularities
Groomed width λ11
CMS_2021_I1920187 13000 2.2 0 2.2
Generalized angularities
Groomed width λ11 (charged only)
CMS_2021_I1920187 13000 1.3 -0.10 1.2
Jet rapidity
ATLAS_2017_I1514251 13000 25 +2.0 27
ATLAS_2019_I1744201 8000 39 +1.0 40
ATLAS_2020_I1788444 13000 54 +7.0 61
Dijet
ΔR
ATLAS_2020_I1788444 13000 18 +2.0 20
CMS_2021_I1847230 8000 n/a - n/a
Dijet
Δφ
ATLAS_2017_I1514251 13000 39 +5.0 44*
ATLAS_2020_I1788444 13000 18 -3.0 15
ΔrelpT(jets)
CMS_2021_I1866118 13000 38 -17 21
Dijet
Δy
ATLAS_2020_I1788444 13000 20 -2.0 18
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* +0.20 1.6*
Jet Multiplicities
Jet multiplicity
ATLAS_2017_I1514251 13000 n/a - n/a
ATLAS_2020_I1788444 13000 130 0 130
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* +0.20 2.0*
pT Z
ATLAS_2020_I1788444 13000 n/a - 30*
ATLAS_2022_I2077570 13000 59 -2.0 57
CMS_2020_I1837084 13000 20 0 20
pT(Z) to pT(jet) ratio
ATLAS_2022_I2077570 13000 n/a - n/a
Dilepton
pT ratio
CMS_2020_I1776758 13000 0.76 -0.020 0.74
y Z
ATLAS_2020_I1788444 13000 47 +2.0 49
ΔR (jet, Z)
ATLAS_2020_I1788444 13000 140 -20 120
ΔRmin (jet, Z)
ATLAS_2022_I2077570 13000 200 0 200
Δφ (jet, Z)
ATLAS_2020_I1788444 13000 130 +10 140
CMS_2021_I1866118 13000 16 +15 31
pT balance (jet, Z)
CMS_2021_I1866118 13000 19 +4.0 23
Δy (jet, Z)
ATLAS_2020_I1788444 13000 62 +7.0 69
HT(Z+jets)
ATLAS_2017_I1514251 13000 n/a - n/a
ATLAS_2022_I2077570 13000 110 0 110
Δφ (dijet, Z)
CMS_2021_I1866118 13000 n/a - 16
pT balance (dijet, Z)
CMS_2021_I1866118 13000 22 -6.0 16

* 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.