Generator / tune

Details for Pythia 8.315 tune-A2

pp/ppbar → Z (Drell-Yan)


Observable Reference Energy χ2+5%
Underlying event
<Nch> vs pTZ
ATLAS_2019_I1736531 13000 0.51
Underlying event
<pT>
ATLAS_2019_I1736531 13000 5.5*
<pT> vs Nch
CDF_2010_I849042 1960 3.2
Transverse
<pT> vs pTlead
CDF_2010_I849042 1960 4.6
Toward
<pT> vs pTlead
CDF_2010_I849042 1960 5.2
Underlying event
<pT> vs pTZ
ATLAS_2019_I1736531 13000 2.1
<pT>Z vs Nch
CDF_2010_I849042 1960 0.67
Underlying event
Σ(pT) vs pTZ
ATLAS_2019_I1736531 13000 2.7
Underlying event
pT spectrum
ATLAS_2019_I1736531 13000 8.3*
Jet Substructure
Splitting scale d0
ATLAS_2017_I1589844 8000 22
Jet Substructure
Splitting scale d1
ATLAS_2017_I1589844 8000 22
Jet Substructure
Splitting scale d2
ATLAS_2017_I1589844 8000 18
Jet Substructure
Splitting scale d3
ATLAS_2017_I1589844 8000 17
Jet Substructure
Splitting scale d4
ATLAS_2017_I1589844 8000 17
Jet Substructure
Splitting scale d5
ATLAS_2017_I1589844 8000 16
Jet Substructure
Splitting scale d6
ATLAS_2017_I1589844 8000 16
Jet Substructure
Splitting scale d7
ATLAS_2017_I1589844 8000 16
Dilepton
Δη
ATLAS_2016_I1467454 8000 17
Dilepton
m
ATLAS_2019_I1725190 13000 n/a
Dilepton
φ*η
CMS_2019_I1753680 13000 40
CMS_2022_I2079374 13000 30
D0_2010_I871787 1960 3.1
LHCB_2012_I1208102 7000 7.2
LHCB_2021_I1990313 13000 18*
Dilepton
φ*η ratio
CMS_2022_I2079374 13000 0.91
ll.phiStar_norm
ATLAS_2019_I1768911 13000 3.2
CMS_2019_I1753680 13000 5.0
Dilepton
pT
LHCB_2021_I1990313 13000 23
Dilepton
y
LHCB_2021_I1990313 13000 23
Transverse
Max(pT) vs pTlead
CDF_2010_I849042 1960 6.9
Toward
Max(pT) vs pTlead
CDF_2010_I849042 1960 11
Underlying event
Nch
ATLAS_2019_I1736531 13000 2.2*
Away
<Nch> vs pTlead
CDF_2010_I849042 1960 3.8
Transverse
<Nch> vs pTlead
CDF_2010_I849042 1960 3.4
nch-vs-pt-trnsDif
CDF_2010_I849042 1960 2.6
TransMAX
<Nch> vs pTlead
CDF_2010_I849042 1960 3.8
TransMIN
<Nch> vs pTlead
CDF_2010_I849042 1960 5.6
Toward
<Nch> vs pTlead
CDF_2010_I849042 1960 4.0
Jet Multiplicities
Jet multiplicity
CMS_EWK_10_012 7000 2.3
Jet Multiplicities
Ratios of jet multiplicity
CMS_EWK_10_012 7000 1.9
Underlying event
Scalar Σ(pT)
ATLAS_2019_I1736531 13000 3.0
Away
Σ(pT) vs pTlead
CDF_2010_I849042 1960 0.99
Transverse
Σ(pT) vs pTlead
CDF_2010_I849042 1960 3.0
sumpt-vs-pt-trnsDif
CDF_2010_I849042 1960 4.2
TransMAX
Σ(pT) vs pTlead
CDF_2010_I849042 1960 3.2
TransMIN
Σ(pT) vs pTlead
CDF_2010_I849042 1960 5.6
Toward
Σ(pT) vs pTlead
CDF_2010_I849042 1960 2.6
z.m
PHENIX_2019_I1672015 200 910,000,000
pT Z
CDF_2000_I505738 1800 13
CDF_2012_I1124333 1960 14
CMS_2019_I1753680 13000 34*
CMS_2022_I2079374 13000 22
D0_2010_I856972 1960 4.1
PHENIX_2019_I1672015 200 500,000,000
z.pt._z.pt
CMS_2022_I2079374 13000 0.73*
z.pt_norm
ATLAS_2011_I917931 7000 1.4
ATLAS_2019_I1768911 13000 2.8
CMS_2019_I1753680 13000 3.0
D0_2010_I856972 1960 2.3
y Z
ATLAS_2016_I1467454 8000 18
CMS_2019_I1753680 13000 40
LHCB_2012_I1208102 7000 9.9
z.y_norm
CMS_2019_I1753680 13000 0.71

* 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.