Generator / tune

Details for Pythia 8.313 qcdcr2 vs. 8.315

pp/ppbar → Z (Drell-Yan)


Observable Reference Energy χ2+5% (8.313) Δ χ2+5% (8.315)
Underlying event
<Nch> vs pTZ
ATLAS_2019_I1736531 13000 - 1.1
Underlying event
<pT>
ATLAS_2019_I1736531 13000 - 8.1*
<pT> vs Nch
CDF_2010_I849042 1960 - 3.3
Transverse
<pT> vs pTlead
CDF_2010_I849042 1960 - 10
Toward
<pT> vs pTlead
CDF_2010_I849042 1960 - 5.4
Underlying event
<pT> vs pTZ
ATLAS_2019_I1736531 13000 - 3.5
<pT>Z vs Nch
CDF_2010_I849042 1960 - 0.99
Underlying event
Σ(pT) vs pTZ
ATLAS_2019_I1736531 13000 - 7.1
Underlying event
pT spectrum
ATLAS_2019_I1736531 13000 - 9.8*
Jet Substructure
Splitting scale d0
ATLAS_2017_I1589844 8000 - 27
Jet Substructure
Splitting scale d1
ATLAS_2017_I1589844 8000 - 29
Jet Substructure
Splitting scale d2
ATLAS_2017_I1589844 8000 - 28
Jet Substructure
Splitting scale d3
ATLAS_2017_I1589844 8000 - 26
Jet Substructure
Splitting scale d4
ATLAS_2017_I1589844 8000 - 24
Jet Substructure
Splitting scale d5
ATLAS_2017_I1589844 8000 - 23
Jet Substructure
Splitting scale d6
ATLAS_2017_I1589844 8000 - 23
Jet Substructure
Splitting scale d7
ATLAS_2017_I1589844 8000 - 21
Dilepton
Δη
ATLAS_2016_I1467454 8000 - 20
Dilepton
m
ATLAS_2019_I1725190 13000 - n/a
Dilepton
φ*η
CMS_2019_I1753680 13000 - 49
CMS_2022_I2079374 13000 - 35
D0_2010_I871787 1960 - 2.6*
LHCB_2012_I1208102 7000 - 9.6
LHCB_2021_I1990313 13000 - 23*
Dilepton
φ*η ratio
CMS_2022_I2079374 13000 - 0.99
ll.phiStar_norm
ATLAS_2019_I1768911 13000 - 1.3
CMS_2019_I1753680 13000 - 1.9
Dilepton
pT
LHCB_2021_I1990313 13000 - 26
Dilepton
y
LHCB_2021_I1990313 13000 - 33
Transverse
Max(pT) vs pTlead
CDF_2010_I849042 1960 - 23
Toward
Max(pT) vs pTlead
CDF_2010_I849042 1960 - 9.4
Underlying event
Nch
ATLAS_2019_I1736531 13000 - 2.7*
Away
<Nch> vs pTlead
CDF_2010_I849042 1960 - 1.5
Transverse
<Nch> vs pTlead
CDF_2010_I849042 1960 - 2.0
nch-vs-pt-trnsDif
CDF_2010_I849042 1960 - 2.4
TransMAX
<Nch> vs pTlead
CDF_2010_I849042 1960 - 2.4
TransMIN
<Nch> vs pTlead
CDF_2010_I849042 1960 - 3.7
Toward
<Nch> vs pTlead
CDF_2010_I849042 1960 - 3.2
Jet Multiplicities
Jet multiplicity
CMS_EWK_10_012 7000 - 7.2
Jet Multiplicities
Ratios of jet multiplicity
CMS_EWK_10_012 7000 - 2.8
Underlying event
Scalar Σ(pT)
ATLAS_2019_I1736531 13000 - 4.1
Away
Σ(pT) vs pTlead
CDF_2010_I849042 1960 - 0.99
Transverse
Σ(pT) vs pTlead
CDF_2010_I849042 1960 - 10
sumpt-vs-pt-trnsDif
CDF_2010_I849042 1960 - 9.2
TransMAX
Σ(pT) vs pTlead
CDF_2010_I849042 1960 - 10
TransMIN
Σ(pT) vs pTlead
CDF_2010_I849042 1960 - 6.5
Toward
Σ(pT) vs pTlead
CDF_2010_I849042 1960 - 4.6
z.m
PHENIX_2019_I1672015 200 - 820,000,000
pT Z
CDF_2000_I505738 1800 - 11
CDF_2012_I1124333 1960 - 11
CMS_2019_I1753680 13000 - 40*
CMS_2022_I2079374 13000 - 28
D0_2010_I856972 1960 - 3.0
PHENIX_2019_I1672015 200 - 430,000,000
z.pt._z.pt
CMS_2022_I2079374 13000 - 1.0
z.pt_norm
ATLAS_2011_I917931 7000 - 0.84
ATLAS_2019_I1768911 13000 - n/a
CMS_2019_I1753680 13000 - 1.0*
D0_2010_I856972 1960 - 1.9
y Z
ATLAS_2016_I1467454 8000 - 21
CMS_2019_I1753680 13000 - 60
LHCB_2012_I1208102 7000 - 14
z.y_norm
CMS_2019_I1753680 13000 - 0.74

* 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 473 histograms.