Generator / tune

Details for Pythia 8.315 stringzold-on

pp/ppbar → Z (Drell-Yan)


Observable Reference Energy χ2+5%
Underlying event
 <Nch> vs pTZ
 ATLAS_2019_I1736531 13000 0.72
Underlying event
 <pT>
 ATLAS_2019_I1736531 13000 6.7*
<pT> vs Nch
 CDF_2010_I849042 1960 2.8
Transverse
 <pT> vs pTlead
 CDF_2010_I849042 1960 8.3
Toward
 <pT> vs pTlead
 CDF_2010_I849042 1960 6.8
Underlying event
 <pT> vs pTZ
 ATLAS_2019_I1736531 13000 2.4
<pT>Z vs Nch
 CDF_2010_I849042 1960 1.1
Underlying event
 Σ(pT) vs pTZ
 ATLAS_2019_I1736531 13000 6.0
Underlying event
 pT spectrum
 ATLAS_2019_I1736531 13000 8.6
Jet Substructure
 Splitting scale d0
 ATLAS_2017_I1589844 8000 27
Jet Substructure
 Splitting scale d1
 ATLAS_2017_I1589844 8000 30
Jet Substructure
 Splitting scale d2
 ATLAS_2017_I1589844 8000 29
Jet Substructure
 Splitting scale d3
 ATLAS_2017_I1589844 8000 27
Jet Substructure
 Splitting scale d4
 ATLAS_2017_I1589844 8000 26
Jet Substructure
 Splitting scale d5
 ATLAS_2017_I1589844 8000 25
Jet Substructure
 Splitting scale d6
 ATLAS_2017_I1589844 8000 24
Jet Substructure
 Splitting scale d7
 ATLAS_2017_I1589844 8000 23
Dilepton
 Δη
 ATLAS_2016_I1467454 8000 20
Dilepton
 m
 ATLAS_2019_I1725190 13000 n/a
Dilepton
 φ*η
 CMS_2019_I1753680 13000 53
CMS_2022_I2079374 13000 34
D0_2010_I871787 1960 2.7*
LHCB_2012_I1208102 7000 9.7
LHCB_2021_I1990313 13000 25*
Dilepton
 φ*η ratio
 CMS_2022_I2079374 13000 0.68*
ll.phiStar_norm
 ATLAS_2019_I1768911 13000 1.3
CMS_2019_I1753680 13000 2.4
Dilepton
 pT
 LHCB_2021_I1990313 13000 30
Dilepton
 y
 LHCB_2021_I1990313 13000 37
Transverse
 Max(pT) vs pTlead
 CDF_2010_I849042 1960 17
Toward
 Max(pT) vs pTlead
 CDF_2010_I849042 1960 14
Underlying event
 Nch
 ATLAS_2019_I1736531 13000 3.2*
Away
 <Nch> vs pTlead
 CDF_2010_I849042 1960 1.1
Transverse
 <Nch> vs pTlead
 CDF_2010_I849042 1960 1.2
nch-vs-pt-trnsDif
 CDF_2010_I849042 1960 1.4
TransMAX
 <Nch> vs pTlead
 CDF_2010_I849042 1960 1.5
TransMIN
 <Nch> vs pTlead
 CDF_2010_I849042 1960 1.6
Toward
 <Nch> vs pTlead
 CDF_2010_I849042 1960 1.8
Jet Multiplicities
 Jet multiplicity
 CMS_EWK_10_012 7000 7.3
Jet Multiplicities
 Ratios of jet multiplicity
 CMS_EWK_10_012 7000 3.1
Underlying event
 Scalar Σ(pT)
 ATLAS_2019_I1736531 13000 4.1
Away
 Σ(pT) vs pTlead
 CDF_2010_I849042 1960 0.82
Transverse
 Σ(pT) vs pTlead
 CDF_2010_I849042 1960 6.4
sumpt-vs-pt-trnsDif
 CDF_2010_I849042 1960 6.4
TransMAX
 Σ(pT) vs pTlead
 CDF_2010_I849042 1960 6.5
TransMIN
 Σ(pT) vs pTlead
 CDF_2010_I849042 1960 4.7
Toward
 Σ(pT) vs pTlead
 CDF_2010_I849042 1960 4.9
z.m
 PHENIX_2019_I1672015 200 1,100,000,000
pT Z
 CDF_2000_I505738 1800 11
CDF_2012_I1124333 1960 11
CMS_2019_I1753680 13000 46*
CMS_2022_I2079374 13000 28
D0_2010_I856972 1960 3.0
PHENIX_2019_I1672015 200 510,000,000
z.pt._z.pt
 CMS_2022_I2079374 13000 0.76
z.pt_norm
 ATLAS_2011_I917931 7000 0.54
ATLAS_2019_I1768911 13000 n/a
CMS_2019_I1753680 13000 1.3*
D0_2010_I856972 1960 1.8
y Z
 ATLAS_2016_I1467454 8000 21
CMS_2019_I1753680 13000 64
LHCB_2012_I1208102 7000 13
z.y_norm
 CMS_2019_I1753680 13000 0.63

* 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.