Generator / tune

Details for Pythia 8.306 pptherm 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 5.7* +1.3 7.0*
Underlying event
pT spectrum
ATLAS_2019_I1736531 13000 7.8* +1.2 9.0*
Generalized angularities
LHA λ10.5
CMS_2021_I1920187 13000 2.7 +0.30 3.0
Generalized angularities
LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 1.3 0 1.3
Generalized angularities
Groomed LHA λ10.5
CMS_2021_I1920187 13000 1.9 +0.20 2.1
Generalized angularities
Groomed LHA λ10.5 (charged only)
CMS_2021_I1920187 13000 1.3 0 1.3
Jet mass
Jet mass
CMS_2013_I1224539 7000 27* +3.0 30
Jet mass
Filtered jet mass
CMS_2013_I1224539 7000 74* +9.0 83*
Jet mass
Pruned jet mass
CMS_2013_I1224539 7000 51* +10 61*
Jet mass
Trimmed jet mass
CMS_2013_I1224539 7000 58 +32 90*
Generalized angularities
Multiplicity λ00
CMS_2021_I1920187 13000 1.3* -0.10 1.2*
Generalized angularities
Groomed multiplicity λ00
CMS_2021_I1920187 13000 1.2* 0 1.2*
Generalized angularities
Multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 1.9* -0.20 1.7*
Generalized angularities
Groomed multiplicity λ00 (charged only)
CMS_2021_I1920187 13000 1.5* 0 1.5*
Jet pT
ATLAS_2017_I1514251 13000 n/a - n/a
ATLAS_2020_I1788444 13000 n/a - n/a
ATLAS_2022_I2077570 13000 76 - n/a
Jet pT ratio
CMS_2020_I1776758 13000 0.64 +1.1 1.7
CMS_2021_I1847230 8000 n/a - n/a
Generalized angularities
(pDT)2 λ20
CMS_2021_I1920187 13000 1.1 0 1.1
Generalized angularities
(pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 1.1* -0.10 1.0*
Generalized angularities
Groomed (pDT)2 λ20
CMS_2021_I1920187 13000 1.2 +0.10 1.3
Generalized angularities
Groomed (pDT)2 λ20 (charged only)
CMS_2021_I1920187 13000 0.93* +0.020 0.95*
Generalized angularities
Thrust λ12
CMS_2021_I1920187 13000 5.2 +0.30 5.5
Generalized angularities
Thrust λ12 (charged only)
CMS_2021_I1920187 13000 1.6 -0.10 1.5
Generalized angularities
Groomed thrust λ12
CMS_2021_I1920187 13000 2.8 +0.20 3.0
Generalized angularities
Groomed thrust λ12 (charged only)
CMS_2021_I1920187 13000 1.4 +0.10 1.5
Generalized angularities
Width λ11
CMS_2021_I1920187 13000 2.9 +0.40 3.3
Generalized angularities
Width λ11 (charged only)
CMS_2021_I1920187 13000 1.0 +0.10 1.1
Generalized angularities
Groomed width λ11
CMS_2021_I1920187 13000 2.2 +0.20 2.4
Generalized angularities
Groomed width λ11 (charged only)
CMS_2021_I1920187 13000 1.3 +0.20 1.5
Jet rapidity
ATLAS_2017_I1514251 13000 25 +6.0 31
ATLAS_2019_I1744201 8000 42 -1.0 41
ATLAS_2020_I1788444 13000 67 +6.0 73
Dijet
ΔR
ATLAS_2020_I1788444 13000 13 +11 24
CMS_2021_I1847230 8000 n/a - n/a
Dijet
Δφ
ATLAS_2017_I1514251 13000 40 +4.0 44
ATLAS_2020_I1788444 13000 16 -2.0 14
ΔrelpT(jets)
CMS_2021_I1866118 13000 25 -4.0 21
Dijet
Δy
ATLAS_2020_I1788444 13000 18 +13 31
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 15 - n/a
Underlying event
Nch
ATLAS_2019_I1736531 13000 4.6* -0.40 4.2*
Jet Multiplicities
Jet multiplicity
ATLAS_2017_I1514251 13000 n/a - n/a
ATLAS_2020_I1788444 13000 140 +20 160
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 6.1* -0.40 5.7*
pT Z
ATLAS_2020_I1788444 13000 n/a - 51
ATLAS_2022_I2077570 13000 57 +1.0 58
CMS_2020_I1837084 13000 22 -2.0 20
pT(Z) to pT(jet) ratio
ATLAS_2022_I2077570 13000 n/a - n/a
Dilepton
pT ratio
CMS_2020_I1776758 13000 0.45 +0.75 1.2
y Z
ATLAS_2020_I1788444 13000 59 +12 71
ΔR (jet, Z)
ATLAS_2020_I1788444 13000 150 +50 200
ΔRmin (jet, Z)
ATLAS_2022_I2077570 13000 200 0 200
Δφ (jet, Z)
ATLAS_2020_I1788444 13000 170 +20 190
CMS_2021_I1866118 13000 28 -4.0 24
pT balance (jet, Z)
CMS_2021_I1866118 13000 32 +10 42
Δy (jet, Z)
ATLAS_2020_I1788444 13000 69 +17 86
HT(Z+jets)
ATLAS_2017_I1514251 13000 n/a - n/a
ATLAS_2022_I2077570 13000 97 +13 110
Δφ (dijet, Z)
CMS_2021_I1866118 13000 15 - n/a
pT balance (dijet, Z)
CMS_2021_I1866118 13000 n/a - 18

* 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.