Generator / tune

Details for Pythia 8.308 CP1-CR2

pp/ppbar → Z (Drell-Yan)


Observable Reference Energy χ2+5%
Underlying event
 <Nch> vs pTZ
 ATLAS_2019_I1736531 13000 0.33
Underlying event
 <pT>
 ATLAS_2019_I1736531 13000 2.3*
<pT> vs Nch
 CDF_2010_I849042 1960 n/a
Transverse
 <pT> vs pTlead
 CDF_2010_I849042 1960 1.4
Toward
 <pT> vs pTlead
 CDF_2010_I849042 1960 3.0
Underlying event
 <pT> vs pTZ
 ATLAS_2019_I1736531 13000 1.5
<pT>Z vs Nch
 CDF_2010_I849042 1960 n/a
Underlying event
 Σ(pT) vs pTZ
 ATLAS_2019_I1736531 13000 2.6
Underlying event
 pT spectrum
 ATLAS_2019_I1736531 13000 1.8*
Jet Substructure
 Splitting scale d0
 ATLAS_2017_I1589844 8000 12
Jet Substructure
 Splitting scale d1
 ATLAS_2017_I1589844 8000 12*
Jet Substructure
 Splitting scale d2
 ATLAS_2017_I1589844 8000 10
Jet Substructure
 Splitting scale d3
 ATLAS_2017_I1589844 8000 9.2*
Jet Substructure
 Splitting scale d4
 ATLAS_2017_I1589844 8000 9.8
Jet Substructure
 Splitting scale d5
 ATLAS_2017_I1589844 8000 9.6
Jet Substructure
 Splitting scale d6
 ATLAS_2017_I1589844 8000 9.5
Jet Substructure
 Splitting scale d7
 ATLAS_2017_I1589844 8000 9.2
Dilepton
 Δη
 ATLAS_2016_I1467454 8000 4.1
Dilepton
 m
 ATLAS_2019_I1725190 13000 n/a
Dilepton
 φ*η
 CMS_2019_I1753680 13000 12*
CMS_2022_I2079374 13000 9.7
D0_2010_I871787 1960 1.1*
LHCB_2012_I1208102 7000 7.8
LHCB_2021_I1990313 13000 12*
Dilepton
 φ*η ratio
 CMS_2022_I2079374 13000 1.0*
ll.phiStar_norm
 ATLAS_2019_I1768911 13000 0.88
CMS_2019_I1753680 13000 1.1
Dilepton
 pT
 LHCB_2021_I1990313 13000 11*
Dilepton
 y
 LHCB_2021_I1990313 13000 16
Transverse
 Max(pT) vs pTlead
 CDF_2010_I849042 1960 3.5
Toward
 Max(pT) vs pTlead
 CDF_2010_I849042 1960 5.7
Underlying event
 Nch
 ATLAS_2019_I1736531 13000 1.8*
Away
 <Nch> vs pTlead
 CDF_2010_I849042 1960 0.27
Transverse
 <Nch> vs pTlead
 CDF_2010_I849042 1960 1.3
nch-vs-pt-trnsDif
 CDF_2010_I849042 1960 0.52
TransMAX
 <Nch> vs pTlead
 CDF_2010_I849042 1960 0.77
TransMIN
 <Nch> vs pTlead
 CDF_2010_I849042 1960 n/a
Toward
 <Nch> vs pTlead
 CDF_2010_I849042 1960 1.3
Jet Multiplicities
 Jet multiplicity
 CMS_EWK_10_012 7000 11
Jet Multiplicities
 Ratios of jet multiplicity
 CMS_EWK_10_012 7000 3.3
Underlying event
 Scalar Σ(pT)
 ATLAS_2019_I1736531 13000 2.3*
Away
 Σ(pT) vs pTlead
 CDF_2010_I849042 1960 0.67
Transverse
 Σ(pT) vs pTlead
 CDF_2010_I849042 1960 2.4
sumpt-vs-pt-trnsDif
 CDF_2010_I849042 1960 1.5
TransMAX
 Σ(pT) vs pTlead
 CDF_2010_I849042 1960 1.7
TransMIN
 Σ(pT) vs pTlead
 CDF_2010_I849042 1960 n/a
Toward
 Σ(pT) vs pTlead
 CDF_2010_I849042 1960 5.2
z.m
 PHENIX_2019_I1672015 200 140,000,000
pT Z
 CDF_2000_I505738 1800 19
CDF_2012_I1124333 1960 22
CMS_2019_I1753680 13000 7.5*
CMS_2022_I2079374 13000 8.8
D0_2010_I856972 1960 9.7
PHENIX_2019_I1672015 200 72,000,000
z.pt._z.pt
 CMS_2022_I2079374 13000 1.0*
z.pt_norm
 ATLAS_2011_I917931 7000 0.70
ATLAS_2019_I1768911 13000 n/a
CMS_2019_I1753680 13000 1.0*
D0_2010_I856972 1960 0.44
y Z
 ATLAS_2016_I1467454 8000 4.5
CMS_2019_I1753680 13000 19
LHCB_2012_I1208102 7000 11
z.y_norm
 CMS_2019_I1753680 13000 0.70

* 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.